{"title":"Volumetric Flasks","description":"\u003cp\u003eVolumetric flasks are calibrated to contain (TC) a single volume at the ring mark, which makes them the vessel for preparing standard solutions and exact dilutions. Every flask here is listed by manufacturer part number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eClass A\u003c\/strong\u003e flasks meet ASTM E288 Class A tolerances and are the choice for analytical and reference work; \u003cstrong\u003eClass B\u003c\/strong\u003e flasks carry roughly twice the tolerance and suit routine preparation and teaching. Borosilicate glass flasks come with ground-glass stoppers or snap caps, in clear or amber for light-sensitive solutions; wide-mouth Class A flasks make it easier to add solids; polypropylene screw-cap flasks are the break-resistant option for field and student use.\u003c\/p\u003e\u003cp\u003eSizes run from 1 mL to 2000 mL. Erlenmeyer, filtering and round-bottom flasks are in \u003ca href=\"\/collections\/lab-flasks\"\u003eLab Flasks\u003c\/a\u003e; graduated cylinders and beakers are under \u003ca href=\"\/collections\/glassware\"\u003eGlassware\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"1ml-volumetric-flask-class-a-borosilicate-glass-8200001","title":"1 mL Volumetric Flask Class A Borosilicate Glass | Globe Scientific 8200001","description":"\u003cp\u003eCalibrated to meet ASTM E237 tolerance specifications, this \u003cstrong\u003e1 mL Volumetric Flask Class A Borosilicate Glass\u003c\/strong\u003e from Globe Scientific provides the precision required for solution preparation, dilution, and quantitative analysis.\u003c\/p\u003e\n\u003cp\u003eFor laboratories that cannot afford measurement uncertainty, the Globe Scientific 8200001 features a diamond-etched graduation line and Class A calibration with a batch calibration report included for traceability.\u003c\/p\u003e\n\u003cp\u003eManufactured from ASTM E438, Type I, Class A, 3.3 borosilicate glass, this flask delivers the chemical resistance and thermal stability required for precise analytical work in pharmaceutical, clinical, and research settings.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Class A Borosilicate Glass Features and Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Solution preparation, serial dilutions, calibration standards, and quantitative chemical analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e ASTM E237 — Class A calibration tolerances verified to specification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -180°C to 500°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass Type:\u003c\/strong\u003e ASTM E438, Type I, Class A, 3.3 borosilicate glass — resists thermal shock and chemical attack from acids, alkalis, and solvents\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation:\u003c\/strong\u003e Diamond-etched graduation line indicates calibrated capacity — To Contain (TC) at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e PP stopper included — prevents evaporation during solution equilibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAvailable Sizes and Pack Quantities\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eSKU\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eVolume\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eMouth Type\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003ePack Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eASTM Standard\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8200001\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e1 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBox of 6\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E237\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8200001\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e1 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCase of 12\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E237\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eLaboratory Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePreparing standard solutions and calibration curves for spectrophotometry, HPLC, and titration analyses\u003c\/li\u003e\n\u003cli\u003ePerforming serial dilutions for microbiological assays and cell counting procedures\u003c\/li\u003e\n\u003cli\u003eMaking buffer solutions with precise pH control for electrophoresis and chromatography\u003c\/li\u003e\n\u003cli\u003eDiluting concentrated stock solutions to working concentrations in clinical and pharmaceutical laboratories\u003c\/li\u003e\n\u003cli\u003ePreparing mobile phase solutions for liquid chromatography requiring exact volumetric ratios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality Assurance and Compliance\u003c\/h2\u003e\n\u003cp\u003eGlobe Scientific manufactures Globe Glass laboratory glassware under ISO 9001:2015 certified quality systems. In-house calibration is performed in an ISO 17025 certified laboratory, and Class A volumetric flasks include a batch calibration report for full traceability. Each flask undergoes automated inspection to verify graduation accuracy, wall thickness uniformity, and rim integrity.\u003c\/p\u003e\n\u003cp\u003eGlassGuard packaging uses heavy-duty, multi-layered corrugated containers tested against the rigors of small parcel shipping. This ensures that every flask arrives intact and ready for immediate use in your laboratory.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Comparison: Why Choose Globe Scientific?\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eGlobe Scientific 8200001\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eGlass Type\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E438, Type I, Class A, 3.3 Borosilicate\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBorosilicate (grade often unlisted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCalibration\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eClass A per ASTM E237\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften unlisted or unverified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eShips From\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eUSA inventory\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eAuthorized Dealer\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eYes — LabSupplies.com\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften third-party reseller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOrdering\u003c\/h2\u003e\n\u003cp\u003eAuthorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a 1 mL volumetric flask used for?\u003c\/h3\u003e\n\u003cp\u003eA 1 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 1 mL graduation mark. Analytical chemists, pharmaceutical researchers, and clinical technicians rely on volumetric flasks for calibration standards, buffer preparation, and serial dilutions.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between Class A and Class B volumetric flasks?\u003c\/h3\u003e\n\u003cp\u003eClass A volumetric flasks have tighter calibration tolerances per ASTM E288 and include individual or batch calibration certificates for traceability. Class B flasks have wider tolerances and are suitable for educational use and non-critical applications. Both classes are manufactured from the same 3.3 borosilicate glass.\u003c\/p\u003e\n\u003ch3\u003eWhat volumetric flask sizes does LabSupplies.com carry?\u003c\/h3\u003e\n\u003cp\u003eLabSupplies.com stocks Globe Scientific volumetric flasks from 1 mL to 2000 mL in Class A and Class B calibrations. Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"1 mL Class A Volumetric Flask Borosilicate Glass | Globe Scientific 8200001\",\"description\":\"1 mL Narrow Mouth volumetric flask in 3.3 borosilicate glass. Meets ASTM E237. Globe Scientific 8200001.\",\"sku\":\"8200001\",\"mpn\":\"8200001\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Globe Scientific\"},\"manufacturer\":{\"@type\":\"Organization\",\"name\":\"Globe Scientific\"},\"offers\":{\"@type\":\"Offer\",\"url\":\"https:\/\/labsupplies.com\/products\/1ml-volumetric-flask-class-a-borosilicate-glass-8200001\",\"priceCurrency\":\"USD\",\"price\":\"238.90\",\"availability\":\"https:\/\/schema.org\/InStock\",\"seller\":{\"@type\":\"Organization\",\"name\":\"LabSupplies.com\"}},\"material\":\"Borosilicate Glass 3.3\"}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is a 1 mL volumetric flask used for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A 1 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 1 mL graduation mark. 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dilution, and quantitative analysis.\u003c\/p\u003e\n\u003cp\u003eFor laboratories that cannot afford measurement uncertainty, the Globe Scientific 8200002 features a diamond-etched graduation line and Class A calibration with a batch calibration report included for traceability.\u003c\/p\u003e\n\u003cp\u003eManufactured from ASTM E438, Type I, Class A, 3.3 borosilicate glass, this flask delivers the chemical resistance and thermal stability required for precise analytical work in pharmaceutical, clinical, and research settings.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Class A Borosilicate Glass Features and Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Solution preparation, serial dilutions, calibration standards, and quantitative chemical analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e ASTM E237 — Class A calibration tolerances verified to specification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -180°C to 500°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass Type:\u003c\/strong\u003e ASTM E438, Type I, Class A, 3.3 borosilicate glass — resists thermal shock and chemical attack from acids, alkalis, and solvents\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation:\u003c\/strong\u003e Diamond-etched graduation line indicates calibrated capacity — To Contain (TC) at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e PP stopper included — prevents evaporation during solution equilibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAvailable Sizes and Pack Quantities\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eSKU\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eVolume\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eMouth Type\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003ePack Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eASTM Standard\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8200002\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e2 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBox of 6\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E237\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8200002\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e2 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCase of 12\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E237\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eLaboratory Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePreparing standard solutions and calibration curves for spectrophotometry, HPLC, and titration analyses\u003c\/li\u003e\n\u003cli\u003ePerforming serial dilutions for microbiological assays and cell counting procedures\u003c\/li\u003e\n\u003cli\u003eMaking buffer solutions with precise pH control for electrophoresis and chromatography\u003c\/li\u003e\n\u003cli\u003eDiluting concentrated stock solutions to working concentrations in clinical and pharmaceutical laboratories\u003c\/li\u003e\n\u003cli\u003ePreparing mobile phase solutions for liquid chromatography requiring exact volumetric ratios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality Assurance and Compliance\u003c\/h2\u003e\n\u003cp\u003eGlobe Scientific manufactures Globe Glass laboratory glassware under ISO 9001:2015 certified quality systems. In-house calibration is performed in an ISO 17025 certified laboratory, and Class A volumetric flasks include a batch calibration report for full traceability. Each flask undergoes automated inspection to verify graduation accuracy, wall thickness uniformity, and rim integrity.\u003c\/p\u003e\n\u003cp\u003eGlassGuard packaging uses heavy-duty, multi-layered corrugated containers tested against the rigors of small parcel shipping. This ensures that every flask arrives intact and ready for immediate use in your laboratory.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Comparison: Why Choose Globe Scientific?\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eGlobe Scientific 8200002\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eGlass Type\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E438, Type I, Class A, 3.3 Borosilicate\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBorosilicate (grade often unlisted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCalibration\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eClass A per ASTM E237\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften unlisted or unverified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eShips From\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eUSA inventory\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eAuthorized Dealer\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eYes — LabSupplies.com\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften third-party reseller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOrdering\u003c\/h2\u003e\n\u003cp\u003eAuthorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a 2 mL volumetric flask used for?\u003c\/h3\u003e\n\u003cp\u003eA 2 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 2 mL graduation mark. Analytical chemists, pharmaceutical researchers, and clinical technicians rely on volumetric flasks for calibration standards, buffer preparation, and serial dilutions.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between Class A and Class B volumetric flasks?\u003c\/h3\u003e\n\u003cp\u003eClass A volumetric flasks have tighter calibration tolerances per ASTM E288 and include individual or batch calibration certificates for traceability. Class B flasks have wider tolerances and are suitable for educational use and non-critical applications. Both classes are manufactured from the same 3.3 borosilicate glass.\u003c\/p\u003e\n\u003ch3\u003eWhat volumetric flask sizes does LabSupplies.com carry?\u003c\/h3\u003e\n\u003cp\u003eLabSupplies.com stocks Globe Scientific volumetric flasks from 1 mL to 2000 mL in Class A and Class B calibrations. Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"2 mL Class A Volumetric Flask Borosilicate Glass | Globe Scientific 8200002\",\"description\":\"2 mL Narrow Mouth volumetric flask in 3.3 borosilicate glass. Meets ASTM E237. Globe Scientific 8200002.\",\"sku\":\"8200002\",\"mpn\":\"8200002\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Globe Scientific\"},\"manufacturer\":{\"@type\":\"Organization\",\"name\":\"Globe Scientific\"},\"offers\":{\"@type\":\"Offer\",\"url\":\"https:\/\/labsupplies.com\/products\/2ml-volumetric-flask-class-a-borosilicate-glass-8200002\",\"priceCurrency\":\"USD\",\"price\":\"255.30\",\"availability\":\"https:\/\/schema.org\/InStock\",\"seller\":{\"@type\":\"Organization\",\"name\":\"LabSupplies.com\"}},\"material\":\"Borosilicate Glass 3.3\"}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is a 2 mL volumetric flask used for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A 2 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 2 mL graduation mark. 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dilution, and quantitative analysis.\u003c\/p\u003e\n\u003cp\u003eFor laboratories that cannot afford measurement uncertainty, the Globe Scientific 8200005 features a diamond-etched graduation line and Class A calibration with a batch calibration report included for traceability.\u003c\/p\u003e\n\u003cp\u003eManufactured from ASTM E438, Type I, Class A, 3.3 borosilicate glass, this flask delivers the chemical resistance and thermal stability required for precise analytical work in pharmaceutical, clinical, and research settings.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Class A Borosilicate Glass Features and Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Solution preparation, serial dilutions, calibration standards, and quantitative chemical analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e ASTM E288 — Class A calibration tolerances verified to specification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -180°C to 500°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass Type:\u003c\/strong\u003e ASTM E438, Type I, Class A, 3.3 borosilicate glass — resists thermal shock and chemical attack from acids, alkalis, and solvents\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation:\u003c\/strong\u003e Diamond-etched graduation line indicates calibrated capacity — To Contain (TC) at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e PP stopper included — prevents evaporation during solution equilibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAvailable Sizes and Pack Quantities\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eSKU\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eVolume\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eMouth Type\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003ePack Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eASTM Standard\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8200005\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e5 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBox of 6\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8200005\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e5 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCase of 12\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eLaboratory Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePreparing standard solutions and calibration curves for spectrophotometry, HPLC, and titration analyses\u003c\/li\u003e\n\u003cli\u003ePerforming serial dilutions for microbiological assays and cell counting procedures\u003c\/li\u003e\n\u003cli\u003eMaking buffer solutions with precise pH control for electrophoresis and chromatography\u003c\/li\u003e\n\u003cli\u003eDiluting concentrated stock solutions to working concentrations in clinical and pharmaceutical laboratories\u003c\/li\u003e\n\u003cli\u003ePreparing mobile phase solutions for liquid chromatography requiring exact volumetric ratios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality Assurance and Compliance\u003c\/h2\u003e\n\u003cp\u003eGlobe Scientific manufactures Globe Glass laboratory glassware under ISO 9001:2015 certified quality systems. In-house calibration is performed in an ISO 17025 certified laboratory, and Class A volumetric flasks include a batch calibration report for full traceability. Each flask undergoes automated inspection to verify graduation accuracy, wall thickness uniformity, and rim integrity.\u003c\/p\u003e\n\u003cp\u003eGlassGuard packaging uses heavy-duty, multi-layered corrugated containers tested against the rigors of small parcel shipping. This ensures that every flask arrives intact and ready for immediate use in your laboratory.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Comparison: Why Choose Globe Scientific?\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eGlobe Scientific 8200005\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eGlass Type\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E438, Type I, Class A, 3.3 Borosilicate\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBorosilicate (grade often unlisted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCalibration\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eClass A per ASTM E288\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften unlisted or unverified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eShips From\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eUSA inventory\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eAuthorized Dealer\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eYes — LabSupplies.com\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften third-party reseller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOrdering\u003c\/h2\u003e\n\u003cp\u003eAuthorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a 5 mL volumetric flask used for?\u003c\/h3\u003e\n\u003cp\u003eA 5 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 5 mL graduation mark. Analytical chemists, pharmaceutical researchers, and clinical technicians rely on volumetric flasks for calibration standards, buffer preparation, and serial dilutions.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between Class A and Class B volumetric flasks?\u003c\/h3\u003e\n\u003cp\u003eClass A volumetric flasks have tighter calibration tolerances per ASTM E288 and include individual or batch calibration certificates for traceability. Class B flasks have wider tolerances and are suitable for educational use and non-critical applications. Both classes are manufactured from the same 3.3 borosilicate glass.\u003c\/p\u003e\n\u003ch3\u003eWhat volumetric flask sizes does LabSupplies.com carry?\u003c\/h3\u003e\n\u003cp\u003eLabSupplies.com stocks Globe Scientific volumetric flasks from 1 mL to 2000 mL in Class A and Class B calibrations. Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"5 mL Class A Volumetric Flask Borosilicate Glass | Globe Scientific 8200005\",\"description\":\"5 mL Narrow Mouth volumetric flask in 3.3 borosilicate glass. Meets ASTM E288. 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dilution, and quantitative analysis.\u003c\/p\u003e\n\u003cp\u003eFor laboratories that cannot afford measurement uncertainty, the Globe Scientific 8200010 features a diamond-etched graduation line and Class A calibration with a batch calibration report included for traceability.\u003c\/p\u003e\n\u003cp\u003eManufactured from ASTM E438, Type I, Class A, 3.3 borosilicate glass, this flask delivers the chemical resistance and thermal stability required for precise analytical work in pharmaceutical, clinical, and research settings.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Class A Borosilicate Glass Features and Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Solution preparation, serial dilutions, calibration standards, and quantitative chemical analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e ASTM E288 — Class A calibration tolerances verified to specification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -180°C to 500°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass Type:\u003c\/strong\u003e ASTM E438, Type I, Class A, 3.3 borosilicate glass — resists thermal shock and chemical attack from acids, alkalis, and solvents\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation:\u003c\/strong\u003e Diamond-etched graduation line indicates calibrated capacity — To Contain (TC) at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e PP stopper included — prevents evaporation during solution equilibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAvailable Sizes and Pack Quantities\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eSKU\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eVolume\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eMouth Type\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003ePack Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eASTM Standard\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8200010\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e10 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBox of 6\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8200010\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e10 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCase of 12\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eLaboratory Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePreparing standard solutions and calibration curves for spectrophotometry, HPLC, and titration analyses\u003c\/li\u003e\n\u003cli\u003ePerforming serial dilutions for microbiological assays and cell counting procedures\u003c\/li\u003e\n\u003cli\u003eMaking buffer solutions with precise pH control for electrophoresis and chromatography\u003c\/li\u003e\n\u003cli\u003eDiluting concentrated stock solutions to working concentrations in clinical and pharmaceutical laboratories\u003c\/li\u003e\n\u003cli\u003ePreparing mobile phase solutions for liquid chromatography requiring exact volumetric ratios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality Assurance and Compliance\u003c\/h2\u003e\n\u003cp\u003eGlobe Scientific manufactures Globe Glass laboratory glassware under ISO 9001:2015 certified quality systems. In-house calibration is performed in an ISO 17025 certified laboratory, and Class A volumetric flasks include a batch calibration report for full traceability. Each flask undergoes automated inspection to verify graduation accuracy, wall thickness uniformity, and rim integrity.\u003c\/p\u003e\n\u003cp\u003eGlassGuard packaging uses heavy-duty, multi-layered corrugated containers tested against the rigors of small parcel shipping. This ensures that every flask arrives intact and ready for immediate use in your laboratory.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Comparison: Why Choose Globe Scientific?\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eGlobe Scientific 8200010\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eGlass Type\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E438, Type I, Class A, 3.3 Borosilicate\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBorosilicate (grade often unlisted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCalibration\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eClass A per ASTM E288\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften unlisted or unverified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eShips From\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eUSA inventory\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eAuthorized Dealer\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eYes — LabSupplies.com\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften third-party reseller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOrdering\u003c\/h2\u003e\n\u003cp\u003eAuthorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a 10 mL volumetric flask used for?\u003c\/h3\u003e\n\u003cp\u003eA 10 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 10 mL graduation mark. Analytical chemists, pharmaceutical researchers, and clinical technicians rely on volumetric flasks for calibration standards, buffer preparation, and serial dilutions.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between Class A and Class B volumetric flasks?\u003c\/h3\u003e\n\u003cp\u003eClass A volumetric flasks have tighter calibration tolerances per ASTM E288 and include individual or batch calibration certificates for traceability. Class B flasks have wider tolerances and are suitable for educational use and non-critical applications. Both classes are manufactured from the same 3.3 borosilicate glass.\u003c\/p\u003e\n\u003ch3\u003eWhat volumetric flask sizes does LabSupplies.com carry?\u003c\/h3\u003e\n\u003cp\u003eLabSupplies.com stocks Globe Scientific volumetric flasks from 1 mL to 2000 mL in Class A and Class B calibrations. Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"10 mL Class A Volumetric Flask Borosilicate Glass | Globe Scientific 8200010\",\"description\":\"10 mL Narrow Mouth volumetric flask in 3.3 borosilicate glass. Meets ASTM E288. Globe Scientific 8200010.\",\"sku\":\"8200010\",\"mpn\":\"8200010\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Globe Scientific\"},\"manufacturer\":{\"@type\":\"Organization\",\"name\":\"Globe Scientific\"},\"offers\":{\"@type\":\"Offer\",\"url\":\"https:\/\/labsupplies.com\/products\/10ml-volumetric-flask-class-a-borosilicate-glass-8200010\",\"priceCurrency\":\"USD\",\"price\":\"234.90\",\"availability\":\"https:\/\/schema.org\/InStock\",\"seller\":{\"@type\":\"Organization\",\"name\":\"LabSupplies.com\"}},\"material\":\"Borosilicate Glass 3.3\"}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is a 10 mL volumetric flask used for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A 10 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 10 mL graduation mark. 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Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\"}}]}\n\u003c\/script\u003e","brand":"Globe Scientific","offers":[{"title":"10 mL - Box of 6","offer_id":48057384796392,"sku":"8200010","price":229.9,"currency_code":"USD","in_stock":true},{"title":"10 mL - Case of 12","offer_id":48057384829160,"sku":"8200010-CASE","price":375.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/file_35aa01a5-d5a1-41ea-92d1-261e76eaef7f.jpg?v=1770920055"},{"product_id":"25ml-volumetric-flask-class-a-borosilicate-glass-8200025","title":"25 mL Volumetric Flask Class A Borosilicate Glass | Globe Scientific 8200025","description":"\u003cp\u003eCalibrated to meet ASTM E288 tolerance specifications, this \u003cstrong\u003e25 mL Volumetric Flask Class A Borosilicate Glass\u003c\/strong\u003e from Globe Scientific provides the precision required for solution preparation, dilution, and quantitative analysis.\u003c\/p\u003e\n\u003cp\u003eFor laboratories that cannot afford measurement uncertainty, the Globe Scientific 8200025 features a diamond-etched graduation line and Class A calibration with a batch calibration report included for traceability.\u003c\/p\u003e\n\u003cp\u003eManufactured from ASTM E438, Type I, Class A, 3.3 borosilicate glass, this flask delivers the chemical resistance and thermal stability required for precise analytical work in pharmaceutical, clinical, and research settings.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Class A Borosilicate Glass Features and Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Solution preparation, serial dilutions, calibration standards, and quantitative chemical analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e ASTM E288 — Class A calibration tolerances verified to specification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -180°C to 500°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass Type:\u003c\/strong\u003e ASTM E438, Type I, Class A, 3.3 borosilicate glass — resists thermal shock and chemical attack from acids, alkalis, and solvents\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation:\u003c\/strong\u003e Diamond-etched graduation line indicates calibrated capacity — To Contain (TC) at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e PP stopper included — prevents evaporation during solution equilibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAvailable Sizes and Pack Quantities\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eSKU\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eVolume\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eMouth Type\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003ePack Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eASTM Standard\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8200025\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e25 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBox of 6\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8200025\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e25 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCase of 12\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eLaboratory Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePreparing standard solutions and calibration curves for spectrophotometry, HPLC, and titration analyses\u003c\/li\u003e\n\u003cli\u003ePerforming serial dilutions for microbiological assays and cell counting procedures\u003c\/li\u003e\n\u003cli\u003eMaking buffer solutions with precise pH control for electrophoresis and chromatography\u003c\/li\u003e\n\u003cli\u003eDiluting concentrated stock solutions to working concentrations in clinical and pharmaceutical laboratories\u003c\/li\u003e\n\u003cli\u003ePreparing mobile phase solutions for liquid chromatography requiring exact volumetric ratios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality Assurance and Compliance\u003c\/h2\u003e\n\u003cp\u003eGlobe Scientific manufactures Globe Glass laboratory glassware under ISO 9001:2015 certified quality systems. In-house calibration is performed in an ISO 17025 certified laboratory, and Class A volumetric flasks include a batch calibration report for full traceability. Each flask undergoes automated inspection to verify graduation accuracy, wall thickness uniformity, and rim integrity.\u003c\/p\u003e\n\u003cp\u003eGlassGuard packaging uses heavy-duty, multi-layered corrugated containers tested against the rigors of small parcel shipping. This ensures that every flask arrives intact and ready for immediate use in your laboratory.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Comparison: Why Choose Globe Scientific?\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eGlobe Scientific 8200025\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eGlass Type\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E438, Type I, Class A, 3.3 Borosilicate\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBorosilicate (grade often unlisted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCalibration\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eClass A per ASTM E288\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften unlisted or unverified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eShips From\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eUSA inventory\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eAuthorized Dealer\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eYes — LabSupplies.com\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften third-party reseller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOrdering\u003c\/h2\u003e\n\u003cp\u003eAuthorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a 25 mL volumetric flask used for?\u003c\/h3\u003e\n\u003cp\u003eA 25 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 25 mL graduation mark. Analytical chemists, pharmaceutical researchers, and clinical technicians rely on volumetric flasks for calibration standards, buffer preparation, and serial dilutions.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between Class A and Class B volumetric flasks?\u003c\/h3\u003e\n\u003cp\u003eClass A volumetric flasks have tighter calibration tolerances per ASTM E288 and include individual or batch calibration certificates for traceability. Class B flasks have wider tolerances and are suitable for educational use and non-critical applications. Both classes are manufactured from the same 3.3 borosilicate glass.\u003c\/p\u003e\n\u003ch3\u003eWhat volumetric flask sizes does LabSupplies.com carry?\u003c\/h3\u003e\n\u003cp\u003eLabSupplies.com stocks Globe Scientific volumetric flasks from 1 mL to 2000 mL in Class A and Class B calibrations. Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"25 mL Class A Volumetric Flask Borosilicate Glass | Globe Scientific 8200025\",\"description\":\"25 mL Narrow Mouth volumetric flask in 3.3 borosilicate glass. Meets ASTM E288. 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specification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -180°C to 500°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass Type:\u003c\/strong\u003e ASTM E438, Type I, Class A, 3.3 borosilicate glass — resists thermal shock and chemical attack from acids, alkalis, and solvents\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation:\u003c\/strong\u003e Diamond-etched graduation line indicates calibrated capacity — To Contain (TC) at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e PP stopper included — prevents evaporation during solution equilibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAvailable Sizes and Pack Quantities\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eSKU\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eVolume\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eMouth Type\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003ePack Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eASTM Standard\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8200050\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e50 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBox of 6\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8200050\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e50 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCase of 12\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eLaboratory Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePreparing standard solutions and calibration curves for spectrophotometry, HPLC, and titration analyses\u003c\/li\u003e\n\u003cli\u003ePerforming serial dilutions for microbiological assays and cell counting procedures\u003c\/li\u003e\n\u003cli\u003eMaking buffer solutions with precise pH control for electrophoresis and chromatography\u003c\/li\u003e\n\u003cli\u003eDiluting concentrated stock solutions to working concentrations in clinical and pharmaceutical laboratories\u003c\/li\u003e\n\u003cli\u003ePreparing mobile phase solutions for liquid chromatography requiring exact volumetric ratios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality Assurance and Compliance\u003c\/h2\u003e\n\u003cp\u003eGlobe Scientific manufactures Globe Glass laboratory glassware under ISO 9001:2015 certified quality systems. In-house calibration is performed in an ISO 17025 certified laboratory, and Class A volumetric flasks include a batch calibration report for full traceability. Each flask undergoes automated inspection to verify graduation accuracy, wall thickness uniformity, and rim integrity.\u003c\/p\u003e\n\u003cp\u003eGlassGuard packaging uses heavy-duty, multi-layered corrugated containers tested against the rigors of small parcel shipping. This ensures that every flask arrives intact and ready for immediate use in your laboratory.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Comparison: Why Choose Globe Scientific?\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eGlobe Scientific 8200050\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eGlass Type\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E438, Type I, Class A, 3.3 Borosilicate\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBorosilicate (grade often unlisted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCalibration\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eClass A per ASTM E288\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften unlisted or unverified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eShips From\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eUSA inventory\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eAuthorized Dealer\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eYes — LabSupplies.com\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften third-party reseller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOrdering\u003c\/h2\u003e\n\u003cp\u003eAuthorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a 50 mL volumetric flask used for?\u003c\/h3\u003e\n\u003cp\u003eA 50 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 50 mL graduation mark. Analytical chemists, pharmaceutical researchers, and clinical technicians rely on volumetric flasks for calibration standards, buffer preparation, and serial dilutions.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between Class A and Class B volumetric flasks?\u003c\/h3\u003e\n\u003cp\u003eClass A volumetric flasks have tighter calibration tolerances per ASTM E288 and include individual or batch calibration certificates for traceability. Class B flasks have wider tolerances and are suitable for educational use and non-critical applications. Both classes are manufactured from the same 3.3 borosilicate glass.\u003c\/p\u003e\n\u003ch3\u003eWhat volumetric flask sizes does LabSupplies.com carry?\u003c\/h3\u003e\n\u003cp\u003eLabSupplies.com stocks Globe Scientific volumetric flasks from 1 mL to 2000 mL in Class A and Class B calibrations. Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"50 mL Class A Volumetric Flask Borosilicate Glass | Globe Scientific 8200050\",\"description\":\"50 mL Narrow Mouth volumetric flask in 3.3 borosilicate glass. Meets ASTM E288. Globe Scientific 8200050.\",\"sku\":\"8200050\",\"mpn\":\"8200050\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Globe Scientific\"},\"manufacturer\":{\"@type\":\"Organization\",\"name\":\"Globe Scientific\"},\"offers\":{\"@type\":\"Offer\",\"url\":\"https:\/\/labsupplies.com\/products\/50ml-volumetric-flask-class-a-borosilicate-glass-8200050\",\"priceCurrency\":\"USD\",\"price\":\"285.70\",\"availability\":\"https:\/\/schema.org\/InStock\",\"seller\":{\"@type\":\"Organization\",\"name\":\"LabSupplies.com\"}},\"material\":\"Borosilicate Glass 3.3\"}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is a 50 mL volumetric flask used for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A 50 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 50 mL graduation mark. 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Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\"}}]}\n\u003c\/script\u003e","brand":"Globe Scientific","offers":[{"title":"50 mL - Box of 6","offer_id":48057385124072,"sku":"8200050","price":280.7,"currency_code":"USD","in_stock":true},{"title":"50 mL - Case of 12","offer_id":48057385156840,"sku":"8200050-CASE","price":457.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/file_8869cbf6-81ac-4af5-987d-547a43b91ebc.jpg?v=1770920059"},{"product_id":"100ml-volumetric-flask-class-a-borosilicate-glass-8200100","title":"100 mL Volumetric Flask Class A Borosilicate Glass | Globe Scientific 8200100","description":"\u003cp\u003eCalibrated to meet ASTM E288 tolerance specifications, this \u003cstrong\u003e100 mL Volumetric Flask Class A Borosilicate Glass\u003c\/strong\u003e from Globe Scientific provides the precision required for solution preparation, dilution, and quantitative analysis.\u003c\/p\u003e\n\u003cp\u003eFor laboratories that cannot afford measurement uncertainty, the Globe Scientific 8200100 features a diamond-etched graduation line and Class A calibration with a batch calibration report included for traceability.\u003c\/p\u003e\n\u003cp\u003eManufactured from ASTM E438, Type I, Class A, 3.3 borosilicate glass, this flask delivers the chemical resistance and thermal stability required for precise analytical work in pharmaceutical, clinical, and research settings.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Class A Borosilicate Glass Features and Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Solution preparation, serial dilutions, calibration standards, and quantitative chemical analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e ASTM E288 — Class A calibration tolerances verified to specification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -180°C to 500°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass Type:\u003c\/strong\u003e ASTM E438, Type I, Class A, 3.3 borosilicate glass — resists thermal shock and chemical attack from acids, alkalis, and solvents\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation:\u003c\/strong\u003e Diamond-etched graduation line indicates calibrated capacity — To Contain (TC) at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e PP stopper included — prevents evaporation during solution equilibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAvailable Sizes and Pack Quantities\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eSKU\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eVolume\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eMouth Type\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003ePack Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eASTM Standard\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8200100\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e100 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBox of 6\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8200100\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e100 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCase of 12\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eLaboratory Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePreparing standard solutions and calibration curves for spectrophotometry, HPLC, and titration analyses\u003c\/li\u003e\n\u003cli\u003ePerforming serial dilutions for microbiological assays and cell counting procedures\u003c\/li\u003e\n\u003cli\u003eMaking buffer solutions with precise pH control for electrophoresis and chromatography\u003c\/li\u003e\n\u003cli\u003eDiluting concentrated stock solutions to working concentrations in clinical and pharmaceutical laboratories\u003c\/li\u003e\n\u003cli\u003ePreparing mobile phase solutions for liquid chromatography requiring exact volumetric ratios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality Assurance and Compliance\u003c\/h2\u003e\n\u003cp\u003eGlobe Scientific manufactures Globe Glass laboratory glassware under ISO 9001:2015 certified quality systems. In-house calibration is performed in an ISO 17025 certified laboratory, and Class A volumetric flasks include a batch calibration report for full traceability. Each flask undergoes automated inspection to verify graduation accuracy, wall thickness uniformity, and rim integrity.\u003c\/p\u003e\n\u003cp\u003eGlassGuard packaging uses heavy-duty, multi-layered corrugated containers tested against the rigors of small parcel shipping. This ensures that every flask arrives intact and ready for immediate use in your laboratory.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Comparison: Why Choose Globe Scientific?\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eGlobe Scientific 8200100\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eGlass Type\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E438, Type I, Class A, 3.3 Borosilicate\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBorosilicate (grade often unlisted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCalibration\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eClass A per ASTM E288\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften unlisted or unverified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eShips From\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eUSA inventory\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eAuthorized Dealer\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eYes — LabSupplies.com\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften third-party reseller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOrdering\u003c\/h2\u003e\n\u003cp\u003eAuthorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a 100 mL volumetric flask used for?\u003c\/h3\u003e\n\u003cp\u003eA 100 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 100 mL graduation mark. Analytical chemists, pharmaceutical researchers, and clinical technicians rely on volumetric flasks for calibration standards, buffer preparation, and serial dilutions.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between Class A and Class B volumetric flasks?\u003c\/h3\u003e\n\u003cp\u003eClass A volumetric flasks have tighter calibration tolerances per ASTM E288 and include individual or batch calibration certificates for traceability. Class B flasks have wider tolerances and are suitable for educational use and non-critical applications. Both classes are manufactured from the same 3.3 borosilicate glass.\u003c\/p\u003e\n\u003ch3\u003eWhat volumetric flask sizes does LabSupplies.com carry?\u003c\/h3\u003e\n\u003cp\u003eLabSupplies.com stocks Globe Scientific volumetric flasks from 1 mL to 2000 mL in Class A and Class B calibrations. Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"100 mL Class A Volumetric Flask Borosilicate Glass | Globe Scientific 8200100\",\"description\":\"100 mL Narrow Mouth volumetric flask in 3.3 borosilicate glass. Meets ASTM E288. Globe Scientific 8200100.\",\"sku\":\"8200100\",\"mpn\":\"8200100\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Globe Scientific\"},\"manufacturer\":{\"@type\":\"Organization\",\"name\":\"Globe Scientific\"},\"offers\":{\"@type\":\"Offer\",\"url\":\"https:\/\/labsupplies.com\/products\/100ml-volumetric-flask-class-a-borosilicate-glass-8200100\",\"priceCurrency\":\"USD\",\"price\":\"309.80\",\"availability\":\"https:\/\/schema.org\/InStock\",\"seller\":{\"@type\":\"Organization\",\"name\":\"LabSupplies.com\"}},\"material\":\"Borosilicate Glass 3.3\"}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is a 100 mL volumetric flask used for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A 100 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 100 mL graduation mark. 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Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\"}}]}\n\u003c\/script\u003e","brand":"Globe Scientific","offers":[{"title":"100 mL - Box of 6","offer_id":48057385189608,"sku":"8200100","price":304.8,"currency_code":"USD","in_stock":true},{"title":"100 mL - Case of 12","offer_id":48057385222376,"sku":"8200100-CASE","price":495.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/file_6e6b2059-4ab2-4b22-bec3-f98f798593f8.jpg?v=1770920062"},{"product_id":"200ml-volumetric-flask-class-a-borosilicate-glass-8200200","title":"200 mL Volumetric Flask Class A Borosilicate Glass | Globe Scientific 8200200","description":"\u003cp\u003eCalibrated to meet ASTM E288 tolerance specifications, this \u003cstrong\u003e200 mL Volumetric Flask Class A Borosilicate Glass\u003c\/strong\u003e from Globe Scientific provides the precision required for solution preparation, dilution, and quantitative analysis.\u003c\/p\u003e\n\u003cp\u003eFor laboratories that cannot afford measurement uncertainty, the Globe Scientific 8200200 features a diamond-etched graduation line and Class A calibration with a batch calibration report included for traceability.\u003c\/p\u003e\n\u003cp\u003eManufactured from ASTM E438, Type I, Class A, 3.3 borosilicate glass, this flask delivers the chemical resistance and thermal stability required for precise analytical work in pharmaceutical, clinical, and research settings.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Class A Borosilicate Glass Features and Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Solution preparation, serial dilutions, calibration standards, and quantitative chemical analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e ASTM E288 — Class A calibration tolerances verified to specification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -180°C to 500°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass Type:\u003c\/strong\u003e ASTM E438, Type I, Class A, 3.3 borosilicate glass — resists thermal shock and chemical attack from acids, alkalis, and solvents\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation:\u003c\/strong\u003e Diamond-etched graduation line indicates calibrated capacity — To Contain (TC) at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e PP stopper included — prevents evaporation during solution equilibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAvailable Sizes and Pack Quantities\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eSKU\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eVolume\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eMouth Type\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003ePack Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eASTM Standard\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8200200\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e200 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBox of 6\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8200200\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e200 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCase of 12\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eLaboratory Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePreparing standard solutions and calibration curves for spectrophotometry, HPLC, and titration analyses\u003c\/li\u003e\n\u003cli\u003ePerforming serial dilutions for microbiological assays and cell counting procedures\u003c\/li\u003e\n\u003cli\u003eMaking buffer solutions with precise pH control for electrophoresis and chromatography\u003c\/li\u003e\n\u003cli\u003eDiluting concentrated stock solutions to working concentrations in clinical and pharmaceutical laboratories\u003c\/li\u003e\n\u003cli\u003ePreparing mobile phase solutions for liquid chromatography requiring exact volumetric ratios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality Assurance and Compliance\u003c\/h2\u003e\n\u003cp\u003eGlobe Scientific manufactures Globe Glass laboratory glassware under ISO 9001:2015 certified quality systems. In-house calibration is performed in an ISO 17025 certified laboratory, and Class A volumetric flasks include a batch calibration report for full traceability. Each flask undergoes automated inspection to verify graduation accuracy, wall thickness uniformity, and rim integrity.\u003c\/p\u003e\n\u003cp\u003eGlassGuard packaging uses heavy-duty, multi-layered corrugated containers tested against the rigors of small parcel shipping. This ensures that every flask arrives intact and ready for immediate use in your laboratory.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Comparison: Why Choose Globe Scientific?\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eGlobe Scientific 8200200\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eGlass Type\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E438, Type I, Class A, 3.3 Borosilicate\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBorosilicate (grade often unlisted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCalibration\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eClass A per ASTM E288\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften unlisted or unverified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eShips From\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eUSA inventory\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eAuthorized Dealer\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eYes — LabSupplies.com\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften third-party reseller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOrdering\u003c\/h2\u003e\n\u003cp\u003eAuthorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a 200 mL volumetric flask used for?\u003c\/h3\u003e\n\u003cp\u003eA 200 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 200 mL graduation mark. Analytical chemists, pharmaceutical researchers, and clinical technicians rely on volumetric flasks for calibration standards, buffer preparation, and serial dilutions.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between Class A and Class B volumetric flasks?\u003c\/h3\u003e\n\u003cp\u003eClass A volumetric flasks have tighter calibration tolerances per ASTM E288 and include individual or batch calibration certificates for traceability. Class B flasks have wider tolerances and are suitable for educational use and non-critical applications. Both classes are manufactured from the same 3.3 borosilicate glass.\u003c\/p\u003e\n\u003ch3\u003eWhat volumetric flask sizes does LabSupplies.com carry?\u003c\/h3\u003e\n\u003cp\u003eLabSupplies.com stocks Globe Scientific volumetric flasks from 1 mL to 2000 mL in Class A and Class B calibrations. Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"200 mL Class A Volumetric Flask Borosilicate Glass | Globe Scientific 8200200\",\"description\":\"200 mL Narrow Mouth volumetric flask in 3.3 borosilicate glass. Meets ASTM E288. Globe Scientific 8200200.\",\"sku\":\"8200200\",\"mpn\":\"8200200\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Globe Scientific\"},\"manufacturer\":{\"@type\":\"Organization\",\"name\":\"Globe Scientific\"},\"offers\":{\"@type\":\"Offer\",\"url\":\"https:\/\/labsupplies.com\/products\/200ml-volumetric-flask-class-a-borosilicate-glass-8200200\",\"priceCurrency\":\"USD\",\"price\":\"345.40\",\"availability\":\"https:\/\/schema.org\/InStock\",\"seller\":{\"@type\":\"Organization\",\"name\":\"LabSupplies.com\"}},\"material\":\"Borosilicate Glass 3.3\"}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is a 200 mL volumetric flask used for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A 200 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 200 mL graduation mark. 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Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\"}}]}\n\u003c\/script\u003e","brand":"Globe Scientific","offers":[{"title":"200 mL - Box of 6","offer_id":48057385255144,"sku":"8200200","price":340.4,"currency_code":"USD","in_stock":true},{"title":"200 mL - Case of 12","offer_id":48057385287912,"sku":"8200200-CASE","price":553.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/file_0fe15cc6-7755-4269-9426-9c4e822736d5.jpg?v=1770920063"},{"product_id":"250ml-volumetric-flask-class-a-borosilicate-glass-8200250","title":"250 mL Volumetric Flask Class A Borosilicate Glass | Globe Scientific 8200250","description":"\u003cp\u003eCalibrated to meet ASTM E288 tolerance specifications, this \u003cstrong\u003e250 mL Volumetric Flask Class A Borosilicate Glass\u003c\/strong\u003e from Globe Scientific provides the precision required for solution preparation, dilution, and quantitative analysis.\u003c\/p\u003e\n\u003cp\u003eFor laboratories that cannot afford measurement uncertainty, the Globe Scientific 8200250 features a diamond-etched graduation line and Class A calibration with a batch calibration report included for traceability.\u003c\/p\u003e\n\u003cp\u003eManufactured from ASTM E438, Type I, Class A, 3.3 borosilicate glass, this flask delivers the chemical resistance and thermal stability required for precise analytical work in pharmaceutical, clinical, and research settings.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Class A Borosilicate Glass Features and Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Solution preparation, serial dilutions, calibration standards, and quantitative chemical analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e ASTM E288 — Class A calibration tolerances verified to specification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -180°C to 500°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass Type:\u003c\/strong\u003e ASTM E438, Type I, Class A, 3.3 borosilicate glass — resists thermal shock and chemical attack from acids, alkalis, and solvents\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation:\u003c\/strong\u003e Diamond-etched graduation line indicates calibrated capacity — To Contain (TC) at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e PP stopper included — prevents evaporation during solution equilibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAvailable Sizes and Pack Quantities\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eSKU\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eVolume\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eMouth Type\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003ePack Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eASTM Standard\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8200250\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e250 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBox of 6\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8200250\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e250 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCase of 12\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eLaboratory Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePreparing standard solutions and calibration curves for spectrophotometry, HPLC, and titration analyses\u003c\/li\u003e\n\u003cli\u003ePerforming serial dilutions for microbiological assays and cell counting procedures\u003c\/li\u003e\n\u003cli\u003eMaking buffer solutions with precise pH control for electrophoresis and chromatography\u003c\/li\u003e\n\u003cli\u003eDiluting concentrated stock solutions to working concentrations in clinical and pharmaceutical laboratories\u003c\/li\u003e\n\u003cli\u003ePreparing mobile phase solutions for liquid chromatography requiring exact volumetric ratios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality Assurance and Compliance\u003c\/h2\u003e\n\u003cp\u003eGlobe Scientific manufactures Globe Glass laboratory glassware under ISO 9001:2015 certified quality systems. In-house calibration is performed in an ISO 17025 certified laboratory, and Class A volumetric flasks include a batch calibration report for full traceability. Each flask undergoes automated inspection to verify graduation accuracy, wall thickness uniformity, and rim integrity.\u003c\/p\u003e\n\u003cp\u003eGlassGuard packaging uses heavy-duty, multi-layered corrugated containers tested against the rigors of small parcel shipping. This ensures that every flask arrives intact and ready for immediate use in your laboratory.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Comparison: Why Choose Globe Scientific?\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eGlobe Scientific 8200250\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eGlass Type\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E438, Type I, Class A, 3.3 Borosilicate\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBorosilicate (grade often unlisted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCalibration\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eClass A per ASTM E288\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften unlisted or unverified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eShips From\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eUSA inventory\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eAuthorized Dealer\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eYes — LabSupplies.com\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften third-party reseller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOrdering\u003c\/h2\u003e\n\u003cp\u003eAuthorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a 250 mL volumetric flask used for?\u003c\/h3\u003e\n\u003cp\u003eA 250 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 250 mL graduation mark. Analytical chemists, pharmaceutical researchers, and clinical technicians rely on volumetric flasks for calibration standards, buffer preparation, and serial dilutions.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between Class A and Class B volumetric flasks?\u003c\/h3\u003e\n\u003cp\u003eClass A volumetric flasks have tighter calibration tolerances per ASTM E288 and include individual or batch calibration certificates for traceability. Class B flasks have wider tolerances and are suitable for educational use and non-critical applications. Both classes are manufactured from the same 3.3 borosilicate glass.\u003c\/p\u003e\n\u003ch3\u003eWhat volumetric flask sizes does LabSupplies.com carry?\u003c\/h3\u003e\n\u003cp\u003eLabSupplies.com stocks Globe Scientific volumetric flasks from 1 mL to 2000 mL in Class A and Class B calibrations. Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"250 mL Class A Volumetric Flask Borosilicate Glass | Globe Scientific 8200250\",\"description\":\"250 mL Narrow Mouth volumetric flask in 3.3 borosilicate glass. Meets ASTM E288. Globe Scientific 8200250.\",\"sku\":\"8200250\",\"mpn\":\"8200250\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Globe Scientific\"},\"manufacturer\":{\"@type\":\"Organization\",\"name\":\"Globe Scientific\"},\"offers\":{\"@type\":\"Offer\",\"url\":\"https:\/\/labsupplies.com\/products\/250ml-volumetric-flask-class-a-borosilicate-glass-8200250\",\"priceCurrency\":\"USD\",\"price\":\"370.80\",\"availability\":\"https:\/\/schema.org\/InStock\",\"seller\":{\"@type\":\"Organization\",\"name\":\"LabSupplies.com\"}},\"material\":\"Borosilicate Glass 3.3\"}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is a 250 mL volumetric flask used for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A 250 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 250 mL graduation mark. 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Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\"}}]}\n\u003c\/script\u003e","brand":"Globe Scientific","offers":[{"title":"250 mL - Box of 6","offer_id":48057385320680,"sku":"8200250","price":365.8,"currency_code":"USD","in_stock":true},{"title":"250 mL - Case of 12","offer_id":48057385353448,"sku":"8200250-CASE","price":594.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/file_d4091322-0982-4129-b243-fa0cfe6b4dcc.jpg?v=1770920066"},{"product_id":"500ml-volumetric-flask-class-a-borosilicate-glass-8200500","title":"500 mL Volumetric Flask Class A Borosilicate Glass | Globe Scientific 8200500","description":"\u003cp\u003eCalibrated to meet ASTM E288 tolerance specifications, this \u003cstrong\u003e500 mL Volumetric Flask Class A Borosilicate Glass\u003c\/strong\u003e from Globe Scientific provides the precision required for solution preparation, dilution, and quantitative analysis.\u003c\/p\u003e\n\u003cp\u003eFor laboratories that cannot afford measurement uncertainty, the Globe Scientific 8200500 features a diamond-etched graduation line and Class A calibration with a batch calibration report included for traceability.\u003c\/p\u003e\n\u003cp\u003eManufactured from ASTM E438, Type I, Class A, 3.3 borosilicate glass, this flask delivers the chemical resistance and thermal stability required for precise analytical work in pharmaceutical, clinical, and research settings.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Class A Borosilicate Glass Features and Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Solution preparation, serial dilutions, calibration standards, and quantitative chemical analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e ASTM E288 — Class A calibration tolerances verified to specification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -180°C to 500°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass Type:\u003c\/strong\u003e ASTM E438, Type I, Class A, 3.3 borosilicate glass — resists thermal shock and chemical attack from acids, alkalis, and solvents\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation:\u003c\/strong\u003e Diamond-etched graduation line indicates calibrated capacity — To Contain (TC) at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e PP stopper included — prevents evaporation during solution equilibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAvailable Sizes and Pack Quantities\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eSKU\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eVolume\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eMouth Type\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003ePack Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eASTM Standard\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8200500\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e500 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBox of 6\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8200500\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e500 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCase of 12\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eLaboratory Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePreparing standard solutions and calibration curves for spectrophotometry, HPLC, and titration analyses\u003c\/li\u003e\n\u003cli\u003ePerforming serial dilutions for microbiological assays and cell counting procedures\u003c\/li\u003e\n\u003cli\u003eMaking buffer solutions with precise pH control for electrophoresis and chromatography\u003c\/li\u003e\n\u003cli\u003eDiluting concentrated stock solutions to working concentrations in clinical and pharmaceutical laboratories\u003c\/li\u003e\n\u003cli\u003ePreparing mobile phase solutions for liquid chromatography requiring exact volumetric ratios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality Assurance and Compliance\u003c\/h2\u003e\n\u003cp\u003eGlobe Scientific manufactures Globe Glass laboratory glassware under ISO 9001:2015 certified quality systems. In-house calibration is performed in an ISO 17025 certified laboratory, and Class A volumetric flasks include a batch calibration report for full traceability. Each flask undergoes automated inspection to verify graduation accuracy, wall thickness uniformity, and rim integrity.\u003c\/p\u003e\n\u003cp\u003eGlassGuard packaging uses heavy-duty, multi-layered corrugated containers tested against the rigors of small parcel shipping. This ensures that every flask arrives intact and ready for immediate use in your laboratory.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Comparison: Why Choose Globe Scientific?\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eGlobe Scientific 8200500\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eGlass Type\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E438, Type I, Class A, 3.3 Borosilicate\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBorosilicate (grade often unlisted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCalibration\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eClass A per ASTM E288\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften unlisted or unverified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eShips From\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eUSA inventory\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eAuthorized Dealer\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eYes — LabSupplies.com\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften third-party reseller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOrdering\u003c\/h2\u003e\n\u003cp\u003eAuthorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a 500 mL volumetric flask used for?\u003c\/h3\u003e\n\u003cp\u003eA 500 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 500 mL graduation mark. Analytical chemists, pharmaceutical researchers, and clinical technicians rely on volumetric flasks for calibration standards, buffer preparation, and serial dilutions.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between Class A and Class B volumetric flasks?\u003c\/h3\u003e\n\u003cp\u003eClass A volumetric flasks have tighter calibration tolerances per ASTM E288 and include individual or batch calibration certificates for traceability. Class B flasks have wider tolerances and are suitable for educational use and non-critical applications. Both classes are manufactured from the same 3.3 borosilicate glass.\u003c\/p\u003e\n\u003ch3\u003eWhat volumetric flask sizes does LabSupplies.com carry?\u003c\/h3\u003e\n\u003cp\u003eLabSupplies.com stocks Globe Scientific volumetric flasks from 1 mL to 2000 mL in Class A and Class B calibrations. Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"500 mL Class A Volumetric Flask Borosilicate Glass | Globe Scientific 8200500\",\"description\":\"500 mL Narrow Mouth volumetric flask in 3.3 borosilicate glass. Meets ASTM E288. 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preparation, dilution, and quantitative analysis.\u003c\/p\u003e\n\u003cp\u003eFor laboratories that cannot afford measurement uncertainty, the Globe Scientific 8201000 features a diamond-etched graduation line and Class A calibration with a batch calibration report included for traceability.\u003c\/p\u003e\n\u003cp\u003eManufactured from ASTM E438, Type I, Class A, 3.3 borosilicate glass, this flask delivers the chemical resistance and thermal stability required for precise analytical work in pharmaceutical, clinical, and research settings.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Class A Borosilicate Glass Features and Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Solution preparation, serial dilutions, calibration standards, and quantitative chemical analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e ASTM E288 — Class A calibration tolerances verified to specification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -180°C to 500°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass Type:\u003c\/strong\u003e ASTM E438, Type I, Class A, 3.3 borosilicate glass — resists thermal shock and chemical attack from acids, alkalis, and solvents\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation:\u003c\/strong\u003e Diamond-etched graduation line indicates calibrated capacity — To Contain (TC) at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e PP stopper included — prevents evaporation during solution equilibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAvailable Sizes and Pack Quantities\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eSKU\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eVolume\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eMouth Type\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003ePack Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eASTM Standard\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8201000\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e1000 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBox of 1\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8201000\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e1000 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCase of 6\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eLaboratory Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePreparing standard solutions and calibration curves for spectrophotometry, HPLC, and titration analyses\u003c\/li\u003e\n\u003cli\u003ePerforming serial dilutions for microbiological assays and cell counting procedures\u003c\/li\u003e\n\u003cli\u003eMaking buffer solutions with precise pH control for electrophoresis and chromatography\u003c\/li\u003e\n\u003cli\u003eDiluting concentrated stock solutions to working concentrations in clinical and pharmaceutical laboratories\u003c\/li\u003e\n\u003cli\u003ePreparing mobile phase solutions for liquid chromatography requiring exact volumetric ratios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality Assurance and Compliance\u003c\/h2\u003e\n\u003cp\u003eGlobe Scientific manufactures Globe Glass laboratory glassware under ISO 9001:2015 certified quality systems. In-house calibration is performed in an ISO 17025 certified laboratory, and Class A volumetric flasks include a batch calibration report for full traceability. Each flask undergoes automated inspection to verify graduation accuracy, wall thickness uniformity, and rim integrity.\u003c\/p\u003e\n\u003cp\u003eGlassGuard packaging uses heavy-duty, multi-layered corrugated containers tested against the rigors of small parcel shipping. This ensures that every flask arrives intact and ready for immediate use in your laboratory.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Comparison: Why Choose Globe Scientific?\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eGlobe Scientific 8201000\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eGlass Type\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E438, Type I, Class A, 3.3 Borosilicate\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBorosilicate (grade often unlisted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCalibration\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eClass A per ASTM E288\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften unlisted or unverified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eShips From\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eUSA inventory\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eAuthorized Dealer\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eYes — LabSupplies.com\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften third-party reseller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOrdering\u003c\/h2\u003e\n\u003cp\u003eAuthorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a 1000 mL volumetric flask used for?\u003c\/h3\u003e\n\u003cp\u003eA 1000 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 1000 mL graduation mark. Analytical chemists, pharmaceutical researchers, and clinical technicians rely on volumetric flasks for calibration standards, buffer preparation, and serial dilutions.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between Class A and Class B volumetric flasks?\u003c\/h3\u003e\n\u003cp\u003eClass A volumetric flasks have tighter calibration tolerances per ASTM E288 and include individual or batch calibration certificates for traceability. Class B flasks have wider tolerances and are suitable for educational use and non-critical applications. Both classes are manufactured from the same 3.3 borosilicate glass.\u003c\/p\u003e\n\u003ch3\u003eWhat volumetric flask sizes does LabSupplies.com carry?\u003c\/h3\u003e\n\u003cp\u003eLabSupplies.com stocks Globe Scientific volumetric flasks from 1 mL to 2000 mL in Class A and Class B calibrations. Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"1000 mL Class A Volumetric Flask Borosilicate Glass | Globe Scientific 8201000\",\"description\":\"1000 mL Narrow Mouth volumetric flask in 3.3 borosilicate glass. Meets ASTM E288. 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preparation, dilution, and quantitative analysis.\u003c\/p\u003e\n\u003cp\u003eFor laboratories that cannot afford measurement uncertainty, the Globe Scientific 8202000 features a diamond-etched graduation line and Class A calibration with a batch calibration report included for traceability.\u003c\/p\u003e\n\u003cp\u003eManufactured from ASTM E438, Type I, Class A, 3.3 borosilicate glass, this flask delivers the chemical resistance and thermal stability required for precise analytical work in pharmaceutical, clinical, and research settings.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Class A Borosilicate Glass Features and Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Solution preparation, serial dilutions, calibration standards, and quantitative chemical analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e ASTM E288 — Class A calibration tolerances verified to specification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -180°C to 500°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass Type:\u003c\/strong\u003e ASTM E438, Type I, Class A, 3.3 borosilicate glass — resists thermal shock and chemical attack from acids, alkalis, and solvents\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation:\u003c\/strong\u003e Diamond-etched graduation line indicates calibrated capacity — To Contain (TC) at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e PP stopper included — prevents evaporation during solution equilibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAvailable Sizes and Pack Quantities\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eSKU\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eVolume\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eMouth Type\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003ePack Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eASTM Standard\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8202000\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e2000 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBox of 1\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8202000\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e2000 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCase of 4\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eLaboratory Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePreparing standard solutions and calibration curves for spectrophotometry, HPLC, and titration analyses\u003c\/li\u003e\n\u003cli\u003ePerforming serial dilutions for microbiological assays and cell counting procedures\u003c\/li\u003e\n\u003cli\u003eMaking buffer solutions with precise pH control for electrophoresis and chromatography\u003c\/li\u003e\n\u003cli\u003eDiluting concentrated stock solutions to working concentrations in clinical and pharmaceutical laboratories\u003c\/li\u003e\n\u003cli\u003ePreparing mobile phase solutions for liquid chromatography requiring exact volumetric ratios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality Assurance and Compliance\u003c\/h2\u003e\n\u003cp\u003eGlobe Scientific manufactures Globe Glass laboratory glassware under ISO 9001:2015 certified quality systems. In-house calibration is performed in an ISO 17025 certified laboratory, and Class A volumetric flasks include a batch calibration report for full traceability. Each flask undergoes automated inspection to verify graduation accuracy, wall thickness uniformity, and rim integrity.\u003c\/p\u003e\n\u003cp\u003eGlassGuard packaging uses heavy-duty, multi-layered corrugated containers tested against the rigors of small parcel shipping. This ensures that every flask arrives intact and ready for immediate use in your laboratory.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Comparison: Why Choose Globe Scientific?\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eGlobe Scientific 8202000\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eGlass Type\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E438, Type I, Class A, 3.3 Borosilicate\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBorosilicate (grade often unlisted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCalibration\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eClass A per ASTM E288\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften unlisted or unverified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eShips From\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eUSA inventory\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eAuthorized Dealer\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eYes — LabSupplies.com\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften third-party reseller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOrdering\u003c\/h2\u003e\n\u003cp\u003eAuthorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a 2000 mL volumetric flask used for?\u003c\/h3\u003e\n\u003cp\u003eA 2000 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 2000 mL graduation mark. Analytical chemists, pharmaceutical researchers, and clinical technicians rely on volumetric flasks for calibration standards, buffer preparation, and serial dilutions.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between Class A and Class B volumetric flasks?\u003c\/h3\u003e\n\u003cp\u003eClass A volumetric flasks have tighter calibration tolerances per ASTM E288 and include individual or batch calibration certificates for traceability. Class B flasks have wider tolerances and are suitable for educational use and non-critical applications. Both classes are manufactured from the same 3.3 borosilicate glass.\u003c\/p\u003e\n\u003ch3\u003eWhat volumetric flask sizes does LabSupplies.com carry?\u003c\/h3\u003e\n\u003cp\u003eLabSupplies.com stocks Globe Scientific volumetric flasks from 1 mL to 2000 mL in Class A and Class B calibrations. Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"2000 mL Class A Volumetric Flask Borosilicate Glass | Globe Scientific 8202000\",\"description\":\"2000 mL Narrow Mouth volumetric flask in 3.3 borosilicate glass. Meets ASTM E288. Globe Scientific 8202000.\",\"sku\":\"8202000\",\"mpn\":\"8202000\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Globe Scientific\"},\"manufacturer\":{\"@type\":\"Organization\",\"name\":\"Globe Scientific\"},\"offers\":{\"@type\":\"Offer\",\"url\":\"https:\/\/labsupplies.com\/products\/2000ml-volumetric-flask-class-a-borosilicate-glass-8202000\",\"priceCurrency\":\"USD\",\"price\":\"153.80\",\"availability\":\"https:\/\/schema.org\/InStock\",\"seller\":{\"@type\":\"Organization\",\"name\":\"LabSupplies.com\"}},\"material\":\"Borosilicate Glass 3.3\"}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is a 2000 mL volumetric flask used for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A 2000 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 2000 mL graduation mark. 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Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\"}}]}\n\u003c\/script\u003e","brand":"Globe Scientific","offers":[{"title":"2000 mL - Each","offer_id":48057385550056,"sku":"8202000","price":148.8,"currency_code":"USD","in_stock":true},{"title":"2000 mL - Case of 4","offer_id":48057385582824,"sku":"8202000-CASE","price":490.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/file_855bd04c-e9ad-4d89-9d4b-3639473b03cc.jpg?v=1770920071"},{"product_id":"5ml-volumetric-flask-wide-mouth-class-a-borosilicate-glass-8230005","title":"5 mL Volumetric Flask Wide Mouth Class A | Globe Scientific 8230005","description":"\u003cp\u003eDesigned for easier filling and mixing of viscous solutions, this \u003cstrong\u003e5 mL Volumetric Flask Wide Mouth Class A Borosilicate Glass\u003c\/strong\u003e from Globe Scientific features a wider neck opening that accommodates solid reagents and simplifies cleaning.\u003c\/p\u003e\n\u003cp\u003eFor analytical laboratories requiring Class A precision with improved accessibility, the Globe Scientific 8230005 combines a diamond-etched graduation line with wide mouth convenience in a single 5 mL flask with a batch calibration report included.\u003c\/p\u003e\n\u003cp\u003eManufactured from ASTM E438, Type I, Class A, 3.3 borosilicate glass, this flask delivers the chemical resistance and thermal stability required for precise analytical work in pharmaceutical, clinical, and research settings.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Wide Mouth Class A Borosilicate Glass Features and Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Solution preparation, serial dilutions, calibration standards, and quantitative chemical analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e ASTM E288 — Class A calibration tolerances verified to specification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -180°C to 500°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass Type:\u003c\/strong\u003e ASTM E438, Type I, Class A, 3.3 borosilicate glass — resists thermal shock and chemical attack from acids, alkalis, and solvents\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation:\u003c\/strong\u003e Diamond-etched graduation line indicates calibrated capacity — To Contain (TC) at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e PP stopper included — prevents evaporation during solution equilibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAvailable Sizes and Pack Quantities\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eSKU\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eVolume\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eMouth Type\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003ePack Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eASTM Standard\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8230005\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e5 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eWide Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBox of 6\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8230005\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e5 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eWide Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCase of 12\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eLaboratory Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePreparing standard solutions and calibration curves for spectrophotometry, HPLC, and titration analyses\u003c\/li\u003e\n\u003cli\u003ePerforming serial dilutions for microbiological assays and cell counting procedures\u003c\/li\u003e\n\u003cli\u003eMaking buffer solutions with precise pH control for electrophoresis and chromatography\u003c\/li\u003e\n\u003cli\u003eDiluting concentrated stock solutions to working concentrations in clinical and pharmaceutical laboratories\u003c\/li\u003e\n\u003cli\u003ePreparing mobile phase solutions for liquid chromatography requiring exact volumetric ratios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality Assurance and Compliance\u003c\/h2\u003e\n\u003cp\u003eGlobe Scientific manufactures Globe Glass laboratory glassware under ISO 9001:2015 certified quality systems. In-house calibration is performed in an ISO 17025 certified laboratory, and Class A volumetric flasks include a batch calibration report for full traceability. Each flask undergoes automated inspection to verify graduation accuracy, wall thickness uniformity, and rim integrity.\u003c\/p\u003e\n\u003cp\u003eGlassGuard packaging uses heavy-duty, multi-layered corrugated containers tested against the rigors of small parcel shipping. This ensures that every flask arrives intact and ready for immediate use in your laboratory.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Comparison: Why Choose Globe Scientific?\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eGlobe Scientific 8230005\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eGlass Type\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E438, Type I, Class A, 3.3 Borosilicate\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBorosilicate (grade often unlisted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCalibration\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eClass A per ASTM E288\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften unlisted or unverified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eShips From\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eUSA inventory\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eAuthorized Dealer\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eYes — LabSupplies.com\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften third-party reseller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOrdering\u003c\/h2\u003e\n\u003cp\u003eAuthorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a 5 mL volumetric flask used for?\u003c\/h3\u003e\n\u003cp\u003eA 5 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 5 mL graduation mark. Analytical chemists, pharmaceutical researchers, and clinical technicians rely on volumetric flasks for calibration standards, buffer preparation, and serial dilutions.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between Class A and Class B volumetric flasks?\u003c\/h3\u003e\n\u003cp\u003eClass A volumetric flasks have tighter calibration tolerances per ASTM E288 and include individual or batch calibration certificates for traceability. Class B flasks have wider tolerances and are suitable for educational use and non-critical applications. Both classes are manufactured from the same 3.3 borosilicate glass.\u003c\/p\u003e\n\u003ch3\u003eWhat volumetric flask sizes does LabSupplies.com carry?\u003c\/h3\u003e\n\u003cp\u003eLabSupplies.com stocks Globe Scientific volumetric flasks from 1 mL to 2000 mL in Class A and Class B calibrations. Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"5 mL Class A Wide Mouth Volumetric Flask Borosilicate Glass | Globe Scientific 8230005\",\"description\":\"5 mL Wide Mouth volumetric flask in 3.3 borosilicate glass. Meets ASTM E288. Globe Scientific 8230005.\",\"sku\":\"8230005\",\"mpn\":\"8230005\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Globe Scientific\"},\"manufacturer\":{\"@type\":\"Organization\",\"name\":\"Globe Scientific\"},\"offers\":{\"@type\":\"Offer\",\"url\":\"https:\/\/labsupplies.com\/products\/5ml-volumetric-flask-wide-mouth-class-a-borosilicate-glass-8230005\",\"priceCurrency\":\"USD\",\"price\":\"205.70\",\"availability\":\"https:\/\/schema.org\/InStock\",\"seller\":{\"@type\":\"Organization\",\"name\":\"LabSupplies.com\"}},\"material\":\"Borosilicate Glass 3.3\"}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is a 5 mL volumetric flask used for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A 5 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 5 mL graduation mark. Analytical chemists, pharmaceutical researchers, and clinical technicians rely on volumetric flasks for calibration standards, buffer preparation, and serial dilutions.\"}},{\"@type\":\"Question\",\"name\":\"What is the difference between Class A and Class B volumetric flasks?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Class A volumetric flasks have tighter calibration tolerances per ASTM E288 and include individual or batch calibration certificates for traceability. Class B flasks have wider tolerances and are suitable for educational use and non-critical applications. Both classes are manufactured from the same 3.3 borosilicate glass.\"}},{\"@type\":\"Question\",\"name\":\"What volumetric flask sizes does LabSupplies.com carry?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"LabSupplies.com stocks Globe Scientific volumetric flasks from 1 mL to 2000 mL in Class A and Class B calibrations. Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\"}}]}\n\u003c\/script\u003e","brand":"Globe Scientific","offers":[{"title":"5 mL - Box of 6","offer_id":48057385648360,"sku":"8230005","price":200.7,"currency_code":"USD","in_stock":true},{"title":"5 mL - Case of 12","offer_id":48057385681128,"sku":"8230005-CASE","price":330.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/file_c4eebfe3-decd-47bf-827f-1edf60387a28.jpg?v=1770920073"},{"product_id":"10ml-volumetric-flask-wide-mouth-class-a-borosilicate-glass-8230010","title":"10 mL Volumetric Flask Wide Mouth Class A | Globe Scientific 8230010","description":"\u003cp\u003eDesigned for easier filling and mixing of viscous solutions, this \u003cstrong\u003e10 mL Volumetric Flask Wide Mouth Class A Borosilicate Glass\u003c\/strong\u003e from Globe Scientific features a wider neck opening that accommodates solid reagents and simplifies cleaning.\u003c\/p\u003e\n\u003cp\u003eFor analytical laboratories requiring Class A precision with improved accessibility, the Globe Scientific 8230010 combines a diamond-etched graduation line with wide mouth convenience in a single 10 mL flask with a batch calibration report included.\u003c\/p\u003e\n\u003cp\u003eManufactured from ASTM E438, Type I, Class A, 3.3 borosilicate glass, this flask delivers the chemical resistance and thermal stability required for precise analytical work in pharmaceutical, clinical, and research settings.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Wide Mouth Class A Borosilicate Glass Features and Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Solution preparation, serial dilutions, calibration standards, and quantitative chemical analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e ASTM E288 — Class A calibration tolerances verified to specification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -180°C to 500°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass Type:\u003c\/strong\u003e ASTM E438, Type I, Class A, 3.3 borosilicate glass — resists thermal shock and chemical attack from acids, alkalis, and solvents\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation:\u003c\/strong\u003e Diamond-etched graduation line indicates calibrated capacity — To Contain (TC) at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e PP stopper included — prevents evaporation during solution equilibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAvailable Sizes and Pack Quantities\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eSKU\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eVolume\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eMouth Type\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003ePack Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eASTM Standard\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8230010\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e10 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eWide Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBox of 6\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8230010\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e10 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eWide Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCase of 12\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eLaboratory Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePreparing standard solutions and calibration curves for spectrophotometry, HPLC, and titration analyses\u003c\/li\u003e\n\u003cli\u003ePerforming serial dilutions for microbiological assays and cell counting procedures\u003c\/li\u003e\n\u003cli\u003eMaking buffer solutions with precise pH control for electrophoresis and chromatography\u003c\/li\u003e\n\u003cli\u003eDiluting concentrated stock solutions to working concentrations in clinical and pharmaceutical laboratories\u003c\/li\u003e\n\u003cli\u003ePreparing mobile phase solutions for liquid chromatography requiring exact volumetric ratios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality Assurance and Compliance\u003c\/h2\u003e\n\u003cp\u003eGlobe Scientific manufactures Globe Glass laboratory glassware under ISO 9001:2015 certified quality systems. In-house calibration is performed in an ISO 17025 certified laboratory, and Class A volumetric flasks include a batch calibration report for full traceability. Each flask undergoes automated inspection to verify graduation accuracy, wall thickness uniformity, and rim integrity.\u003c\/p\u003e\n\u003cp\u003eGlassGuard packaging uses heavy-duty, multi-layered corrugated containers tested against the rigors of small parcel shipping. This ensures that every flask arrives intact and ready for immediate use in your laboratory.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Comparison: Why Choose Globe Scientific?\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eGlobe Scientific 8230010\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eGlass Type\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E438, Type I, Class A, 3.3 Borosilicate\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBorosilicate (grade often unlisted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCalibration\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eClass A per ASTM E288\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften unlisted or unverified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eShips From\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eUSA inventory\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eAuthorized Dealer\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eYes — LabSupplies.com\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften third-party reseller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOrdering\u003c\/h2\u003e\n\u003cp\u003eAuthorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a 10 mL volumetric flask used for?\u003c\/h3\u003e\n\u003cp\u003eA 10 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 10 mL graduation mark. Analytical chemists, pharmaceutical researchers, and clinical technicians rely on volumetric flasks for calibration standards, buffer preparation, and serial dilutions.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between Class A and Class B volumetric flasks?\u003c\/h3\u003e\n\u003cp\u003eClass A volumetric flasks have tighter calibration tolerances per ASTM E288 and include individual or batch calibration certificates for traceability. Class B flasks have wider tolerances and are suitable for educational use and non-critical applications. Both classes are manufactured from the same 3.3 borosilicate glass.\u003c\/p\u003e\n\u003ch3\u003eWhat volumetric flask sizes does LabSupplies.com carry?\u003c\/h3\u003e\n\u003cp\u003eLabSupplies.com stocks Globe Scientific volumetric flasks from 1 mL to 2000 mL in Class A and Class B calibrations. Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"10 mL Class A Wide Mouth Volumetric Flask Borosilicate Glass | Globe Scientific 8230010\",\"description\":\"10 mL Wide Mouth volumetric flask in 3.3 borosilicate glass. Meets ASTM E288. Globe Scientific 8230010.\",\"sku\":\"8230010\",\"mpn\":\"8230010\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Globe Scientific\"},\"manufacturer\":{\"@type\":\"Organization\",\"name\":\"Globe Scientific\"},\"offers\":{\"@type\":\"Offer\",\"url\":\"https:\/\/labsupplies.com\/products\/10ml-volumetric-flask-wide-mouth-class-a-borosilicate-glass-8230010\",\"priceCurrency\":\"USD\",\"price\":\"223.50\",\"availability\":\"https:\/\/schema.org\/InStock\",\"seller\":{\"@type\":\"Organization\",\"name\":\"LabSupplies.com\"}},\"material\":\"Borosilicate Glass 3.3\"}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is a 10 mL volumetric flask used for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A 10 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 10 mL graduation mark. Analytical chemists, pharmaceutical researchers, and clinical technicians rely on volumetric flasks for calibration standards, buffer preparation, and serial dilutions.\"}},{\"@type\":\"Question\",\"name\":\"What is the difference between Class A and Class B volumetric flasks?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Class A volumetric flasks have tighter calibration tolerances per ASTM E288 and include individual or batch calibration certificates for traceability. Class B flasks have wider tolerances and are suitable for educational use and non-critical applications. Both classes are manufactured from the same 3.3 borosilicate glass.\"}},{\"@type\":\"Question\",\"name\":\"What volumetric flask sizes does LabSupplies.com carry?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"LabSupplies.com stocks Globe Scientific volumetric flasks from 1 mL to 2000 mL in Class A and Class B calibrations. Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\"}}]}\n\u003c\/script\u003e","brand":"Globe Scientific","offers":[{"title":"10 mL - Box of 6","offer_id":48057385746664,"sku":"8230010","price":218.5,"currency_code":"USD","in_stock":true},{"title":"10 mL - Case of 12","offer_id":48057385779432,"sku":"8230010-CASE","price":358.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/file_3c1406dd-ee08-4343-a653-d80274dee033.jpg?v=1770920074"},{"product_id":"20ml-volumetric-flask-wide-mouth-class-a-borosilicate-glass-8230020","title":"20 mL Volumetric Flask Wide Mouth Class A | Globe Scientific 8230020","description":"\u003cp\u003eDesigned for easier filling and mixing of viscous solutions, this \u003cstrong\u003e20 mL Volumetric Flask Wide Mouth Class A Borosilicate Glass\u003c\/strong\u003e from Globe Scientific features a wider neck opening that accommodates solid reagents and simplifies cleaning.\u003c\/p\u003e\n\u003cp\u003eFor analytical laboratories requiring Class A precision with improved accessibility, the Globe Scientific 8230020 combines a diamond-etched graduation line with wide mouth convenience in a single 20 mL flask with a batch calibration report included.\u003c\/p\u003e\n\u003cp\u003eManufactured from ASTM E438, Type I, Class A, 3.3 borosilicate glass, this flask delivers the chemical resistance and thermal stability required for precise analytical work in pharmaceutical, clinical, and research settings.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Wide Mouth Class A Borosilicate Glass Features and Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Solution preparation, serial dilutions, calibration standards, and quantitative chemical analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e ASTM E288 — Class A calibration tolerances verified to specification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -180°C to 500°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass Type:\u003c\/strong\u003e ASTM E438, Type I, Class A, 3.3 borosilicate glass — resists thermal shock and chemical attack from acids, alkalis, and solvents\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation:\u003c\/strong\u003e Diamond-etched graduation line indicates calibrated capacity — To Contain (TC) at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e PP stopper included — prevents evaporation during solution equilibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAvailable Sizes and Pack Quantities\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eSKU\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eVolume\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eMouth Type\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003ePack Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eASTM Standard\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8230020\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e20 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eWide Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBox of 6\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8230020\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e20 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eWide Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCase of 12\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eLaboratory Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePreparing standard solutions and calibration curves for spectrophotometry, HPLC, and titration analyses\u003c\/li\u003e\n\u003cli\u003ePerforming serial dilutions for microbiological assays and cell counting procedures\u003c\/li\u003e\n\u003cli\u003eMaking buffer solutions with precise pH control for electrophoresis and chromatography\u003c\/li\u003e\n\u003cli\u003eDiluting concentrated stock solutions to working concentrations in clinical and pharmaceutical laboratories\u003c\/li\u003e\n\u003cli\u003ePreparing mobile phase solutions for liquid chromatography requiring exact volumetric ratios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality Assurance and Compliance\u003c\/h2\u003e\n\u003cp\u003eGlobe Scientific manufactures Globe Glass laboratory glassware under ISO 9001:2015 certified quality systems. In-house calibration is performed in an ISO 17025 certified laboratory, and Class A volumetric flasks include a batch calibration report for full traceability. Each flask undergoes automated inspection to verify graduation accuracy, wall thickness uniformity, and rim integrity.\u003c\/p\u003e\n\u003cp\u003eGlassGuard packaging uses heavy-duty, multi-layered corrugated containers tested against the rigors of small parcel shipping. This ensures that every flask arrives intact and ready for immediate use in your laboratory.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Comparison: Why Choose Globe Scientific?\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eGlobe Scientific 8230020\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eGlass Type\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E438, Type I, Class A, 3.3 Borosilicate\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBorosilicate (grade often unlisted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCalibration\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eClass A per ASTM E288\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften unlisted or unverified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eShips From\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eUSA inventory\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eAuthorized Dealer\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eYes — LabSupplies.com\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften third-party reseller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOrdering\u003c\/h2\u003e\n\u003cp\u003eAuthorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a 20 mL volumetric flask used for?\u003c\/h3\u003e\n\u003cp\u003eA 20 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 20 mL graduation mark. Analytical chemists, pharmaceutical researchers, and clinical technicians rely on volumetric flasks for calibration standards, buffer preparation, and serial dilutions.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between Class A and Class B volumetric flasks?\u003c\/h3\u003e\n\u003cp\u003eClass A volumetric flasks have tighter calibration tolerances per ASTM E288 and include individual or batch calibration certificates for traceability. Class B flasks have wider tolerances and are suitable for educational use and non-critical applications. Both classes are manufactured from the same 3.3 borosilicate glass.\u003c\/p\u003e\n\u003ch3\u003eWhat volumetric flask sizes does LabSupplies.com carry?\u003c\/h3\u003e\n\u003cp\u003eLabSupplies.com stocks Globe Scientific volumetric flasks from 1 mL to 2000 mL in Class A and Class B calibrations. Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"20 mL Class A Wide Mouth Volumetric Flask Borosilicate Glass | Globe Scientific 8230020\",\"description\":\"20 mL Wide Mouth volumetric flask in 3.3 borosilicate glass. Meets ASTM E288. 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Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\"}}]}\n\u003c\/script\u003e","brand":"Globe Scientific","offers":[{"title":"20 mL - Box of 6","offer_id":48057385812200,"sku":"8230020","price":229.9,"currency_code":"USD","in_stock":true},{"title":"20 mL - Case of 12","offer_id":48057385844968,"sku":"8230020-CASE","price":375.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/file_8fddb740-426a-4d47-a354-401cf54d9ade.jpg?v=1770920077"},{"product_id":"25ml-volumetric-flask-wide-mouth-class-a-borosilicate-glass-8230025","title":"25 mL Volumetric Flask Wide Mouth Class A | Globe Scientific 8230025","description":"\u003cp\u003eDesigned for easier filling and mixing of viscous solutions, this \u003cstrong\u003e25 mL Volumetric Flask Wide Mouth Class A Borosilicate Glass\u003c\/strong\u003e from Globe Scientific features a wider neck opening that accommodates solid reagents and simplifies cleaning.\u003c\/p\u003e\n\u003cp\u003eFor analytical laboratories requiring Class A precision with improved accessibility, the Globe Scientific 8230025 combines a diamond-etched graduation line with wide mouth convenience in a single 25 mL flask with a batch calibration report included.\u003c\/p\u003e\n\u003cp\u003eManufactured from ASTM E438, Type I, Class A, 3.3 borosilicate glass, this flask delivers the chemical resistance and thermal stability required for precise analytical work in pharmaceutical, clinical, and research settings.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Wide Mouth Class A Borosilicate Glass Features and Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Solution preparation, serial dilutions, calibration standards, and quantitative chemical analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e ASTM E288 — Class A calibration tolerances verified to specification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -180°C to 500°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass Type:\u003c\/strong\u003e ASTM E438, Type I, Class A, 3.3 borosilicate glass — resists thermal shock and chemical attack from acids, alkalis, and solvents\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation:\u003c\/strong\u003e Diamond-etched graduation line indicates calibrated capacity — To Contain (TC) at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e PP stopper included — prevents evaporation during solution equilibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAvailable Sizes and Pack Quantities\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eSKU\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eVolume\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eMouth Type\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003ePack Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eASTM Standard\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8230025\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e25 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eWide Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBox of 6\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8230025\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e25 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eWide Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCase of 12\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eLaboratory Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePreparing standard solutions and calibration curves for spectrophotometry, HPLC, and titration analyses\u003c\/li\u003e\n\u003cli\u003ePerforming serial dilutions for microbiological assays and cell counting procedures\u003c\/li\u003e\n\u003cli\u003eMaking buffer solutions with precise pH control for electrophoresis and chromatography\u003c\/li\u003e\n\u003cli\u003eDiluting concentrated stock solutions to working concentrations in clinical and pharmaceutical laboratories\u003c\/li\u003e\n\u003cli\u003ePreparing mobile phase solutions for liquid chromatography requiring exact volumetric ratios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality Assurance and Compliance\u003c\/h2\u003e\n\u003cp\u003eGlobe Scientific manufactures Globe Glass laboratory glassware under ISO 9001:2015 certified quality systems. In-house calibration is performed in an ISO 17025 certified laboratory, and Class A volumetric flasks include a batch calibration report for full traceability. Each flask undergoes automated inspection to verify graduation accuracy, wall thickness uniformity, and rim integrity.\u003c\/p\u003e\n\u003cp\u003eGlassGuard packaging uses heavy-duty, multi-layered corrugated containers tested against the rigors of small parcel shipping. This ensures that every flask arrives intact and ready for immediate use in your laboratory.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Comparison: Why Choose Globe Scientific?\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eGlobe Scientific 8230025\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eGlass Type\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E438, Type I, Class A, 3.3 Borosilicate\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBorosilicate (grade often unlisted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCalibration\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eClass A per ASTM E288\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften unlisted or unverified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eShips From\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eUSA inventory\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eAuthorized Dealer\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eYes — LabSupplies.com\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften third-party reseller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOrdering\u003c\/h2\u003e\n\u003cp\u003eAuthorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a 25 mL volumetric flask used for?\u003c\/h3\u003e\n\u003cp\u003eA 25 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 25 mL graduation mark. Analytical chemists, pharmaceutical researchers, and clinical technicians rely on volumetric flasks for calibration standards, buffer preparation, and serial dilutions.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between Class A and Class B volumetric flasks?\u003c\/h3\u003e\n\u003cp\u003eClass A volumetric flasks have tighter calibration tolerances per ASTM E288 and include individual or batch calibration certificates for traceability. Class B flasks have wider tolerances and are suitable for educational use and non-critical applications. Both classes are manufactured from the same 3.3 borosilicate glass.\u003c\/p\u003e\n\u003ch3\u003eWhat volumetric flask sizes does LabSupplies.com carry?\u003c\/h3\u003e\n\u003cp\u003eLabSupplies.com stocks Globe Scientific volumetric flasks from 1 mL to 2000 mL in Class A and Class B calibrations. Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"25 mL Class A Wide Mouth Volumetric Flask Borosilicate Glass | Globe Scientific 8230025\",\"description\":\"25 mL Wide Mouth volumetric flask in 3.3 borosilicate glass. Meets ASTM E288. Globe Scientific 8230025.\",\"sku\":\"8230025\",\"mpn\":\"8230025\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Globe Scientific\"},\"manufacturer\":{\"@type\":\"Organization\",\"name\":\"Globe Scientific\"},\"offers\":{\"@type\":\"Offer\",\"url\":\"https:\/\/labsupplies.com\/products\/25ml-volumetric-flask-wide-mouth-class-a-borosilicate-glass-8230025\",\"priceCurrency\":\"USD\",\"price\":\"241.30\",\"availability\":\"https:\/\/schema.org\/InStock\",\"seller\":{\"@type\":\"Organization\",\"name\":\"LabSupplies.com\"}},\"material\":\"Borosilicate Glass 3.3\"}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is a 25 mL volumetric flask used for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A 25 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 25 mL graduation mark. 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accommodates solid reagents and simplifies cleaning.\u003c\/p\u003e\n\u003cp\u003eFor analytical laboratories requiring Class A precision with improved accessibility, the Globe Scientific 8230050 combines a diamond-etched graduation line with wide mouth convenience in a single 50 mL flask with a batch calibration report included.\u003c\/p\u003e\n\u003cp\u003eManufactured from ASTM E438, Type I, Class A, 3.3 borosilicate glass, this flask delivers the chemical resistance and thermal stability required for precise analytical work in pharmaceutical, clinical, and research settings.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Wide Mouth Class A Borosilicate Glass Features and Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Solution preparation, serial dilutions, calibration standards, and quantitative chemical analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e ASTM E288 — Class A calibration tolerances verified to specification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -180°C to 500°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass Type:\u003c\/strong\u003e ASTM E438, Type I, Class A, 3.3 borosilicate glass — resists thermal shock and chemical attack from acids, alkalis, and solvents\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation:\u003c\/strong\u003e Diamond-etched graduation line indicates calibrated capacity — To Contain (TC) at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e PP stopper included — prevents evaporation during solution equilibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAvailable Sizes and Pack Quantities\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eSKU\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eVolume\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eMouth Type\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003ePack Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eASTM Standard\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8230050\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e50 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eWide Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBox of 6\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8230050\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e50 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eWide Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCase of 12\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eLaboratory Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePreparing standard solutions and calibration curves for spectrophotometry, HPLC, and titration analyses\u003c\/li\u003e\n\u003cli\u003ePerforming serial dilutions for microbiological assays and cell counting procedures\u003c\/li\u003e\n\u003cli\u003eMaking buffer solutions with precise pH control for electrophoresis and chromatography\u003c\/li\u003e\n\u003cli\u003eDiluting concentrated stock solutions to working concentrations in clinical and pharmaceutical laboratories\u003c\/li\u003e\n\u003cli\u003ePreparing mobile phase solutions for liquid chromatography requiring exact volumetric ratios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality Assurance and Compliance\u003c\/h2\u003e\n\u003cp\u003eGlobe Scientific manufactures Globe Glass laboratory glassware under ISO 9001:2015 certified quality systems. In-house calibration is performed in an ISO 17025 certified laboratory, and Class A volumetric flasks include a batch calibration report for full traceability. Each flask undergoes automated inspection to verify graduation accuracy, wall thickness uniformity, and rim integrity.\u003c\/p\u003e\n\u003cp\u003eGlassGuard packaging uses heavy-duty, multi-layered corrugated containers tested against the rigors of small parcel shipping. This ensures that every flask arrives intact and ready for immediate use in your laboratory.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Comparison: Why Choose Globe Scientific?\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eGlobe Scientific 8230050\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eGlass Type\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E438, Type I, Class A, 3.3 Borosilicate\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBorosilicate (grade often unlisted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCalibration\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eClass A per ASTM E288\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften unlisted or unverified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eShips From\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eUSA inventory\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eAuthorized Dealer\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eYes — LabSupplies.com\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften third-party reseller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOrdering\u003c\/h2\u003e\n\u003cp\u003eAuthorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a 50 mL volumetric flask used for?\u003c\/h3\u003e\n\u003cp\u003eA 50 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 50 mL graduation mark. Analytical chemists, pharmaceutical researchers, and clinical technicians rely on volumetric flasks for calibration standards, buffer preparation, and serial dilutions.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between Class A and Class B volumetric flasks?\u003c\/h3\u003e\n\u003cp\u003eClass A volumetric flasks have tighter calibration tolerances per ASTM E288 and include individual or batch calibration certificates for traceability. Class B flasks have wider tolerances and are suitable for educational use and non-critical applications. Both classes are manufactured from the same 3.3 borosilicate glass.\u003c\/p\u003e\n\u003ch3\u003eWhat volumetric flask sizes does LabSupplies.com carry?\u003c\/h3\u003e\n\u003cp\u003eLabSupplies.com stocks Globe Scientific volumetric flasks from 1 mL to 2000 mL in Class A and Class B calibrations. Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"50 mL Class A Wide Mouth Volumetric Flask Borosilicate Glass | Globe Scientific 8230050\",\"description\":\"50 mL Wide Mouth volumetric flask in 3.3 borosilicate glass. Meets ASTM E288. Globe Scientific 8230050.\",\"sku\":\"8230050\",\"mpn\":\"8230050\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Globe Scientific\"},\"manufacturer\":{\"@type\":\"Organization\",\"name\":\"Globe Scientific\"},\"offers\":{\"@type\":\"Offer\",\"url\":\"https:\/\/labsupplies.com\/products\/50ml-volumetric-flask-wide-mouth-class-a-borosilicate-glass-8230050\",\"priceCurrency\":\"USD\",\"price\":\"247.70\",\"availability\":\"https:\/\/schema.org\/InStock\",\"seller\":{\"@type\":\"Organization\",\"name\":\"LabSupplies.com\"}},\"material\":\"Borosilicate Glass 3.3\"}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is a 50 mL volumetric flask used for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A 50 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 50 mL graduation mark. 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Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\"}}]}\n\u003c\/script\u003e","brand":"Globe Scientific","offers":[{"title":"50 mL - Box of 6","offer_id":48057385943272,"sku":"8230050","price":242.7,"currency_code":"USD","in_stock":true},{"title":"50 mL - Case of 12","offer_id":48057385976040,"sku":"8230050-CASE","price":396.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/file_5332b547-6424-4f90-b276-cad7fb3eb2c3.jpg?v=1770920079"},{"product_id":"100ml-volumetric-flask-wide-mouth-class-a-borosilicate-glass-8230100","title":"100 mL Volumetric Flask Wide Mouth Class A | Globe Scientific 8230100","description":"\u003cp\u003eDesigned for easier filling and mixing of viscous solutions, this \u003cstrong\u003e100 mL Volumetric Flask Wide Mouth Class A Borosilicate Glass\u003c\/strong\u003e from Globe Scientific features a wider neck opening that accommodates solid reagents and simplifies cleaning.\u003c\/p\u003e\n\u003cp\u003eFor analytical laboratories requiring Class A precision with improved accessibility, the Globe Scientific 8230100 combines a diamond-etched graduation line with wide mouth convenience in a single 100 mL flask with a batch calibration report included.\u003c\/p\u003e\n\u003cp\u003eManufactured from ASTM E438, Type I, Class A, 3.3 borosilicate glass, this flask delivers the chemical resistance and thermal stability required for precise analytical work in pharmaceutical, clinical, and research settings.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Wide Mouth Class A Borosilicate Glass Features and Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Solution preparation, serial dilutions, calibration standards, and quantitative chemical analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e ASTM E288 — Class A calibration tolerances verified to specification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -180°C to 500°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass Type:\u003c\/strong\u003e ASTM E438, Type I, Class A, 3.3 borosilicate glass — resists thermal shock and chemical attack from acids, alkalis, and solvents\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation:\u003c\/strong\u003e Diamond-etched graduation line indicates calibrated capacity — To Contain (TC) at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e PP stopper included — prevents evaporation during solution equilibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAvailable Sizes and Pack Quantities\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eSKU\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eVolume\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eMouth Type\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003ePack Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eASTM Standard\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8230100\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e100 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eWide Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBox of 6\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8230100\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e100 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eWide Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCase of 12\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eLaboratory Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePreparing standard solutions and calibration curves for spectrophotometry, HPLC, and titration analyses\u003c\/li\u003e\n\u003cli\u003ePerforming serial dilutions for microbiological assays and cell counting procedures\u003c\/li\u003e\n\u003cli\u003eMaking buffer solutions with precise pH control for electrophoresis and chromatography\u003c\/li\u003e\n\u003cli\u003eDiluting concentrated stock solutions to working concentrations in clinical and pharmaceutical laboratories\u003c\/li\u003e\n\u003cli\u003ePreparing mobile phase solutions for liquid chromatography requiring exact volumetric ratios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality Assurance and Compliance\u003c\/h2\u003e\n\u003cp\u003eGlobe Scientific manufactures Globe Glass laboratory glassware under ISO 9001:2015 certified quality systems. In-house calibration is performed in an ISO 17025 certified laboratory, and Class A volumetric flasks include a batch calibration report for full traceability. Each flask undergoes automated inspection to verify graduation accuracy, wall thickness uniformity, and rim integrity.\u003c\/p\u003e\n\u003cp\u003eGlassGuard packaging uses heavy-duty, multi-layered corrugated containers tested against the rigors of small parcel shipping. This ensures that every flask arrives intact and ready for immediate use in your laboratory.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Comparison: Why Choose Globe Scientific?\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eGlobe Scientific 8230100\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eGlass Type\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E438, Type I, Class A, 3.3 Borosilicate\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBorosilicate (grade often unlisted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCalibration\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eClass A per ASTM E288\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften unlisted or unverified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eShips From\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eUSA inventory\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eAuthorized Dealer\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eYes — LabSupplies.com\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften third-party reseller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOrdering\u003c\/h2\u003e\n\u003cp\u003eAuthorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a 100 mL volumetric flask used for?\u003c\/h3\u003e\n\u003cp\u003eA 100 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 100 mL graduation mark. Analytical chemists, pharmaceutical researchers, and clinical technicians rely on volumetric flasks for calibration standards, buffer preparation, and serial dilutions.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between Class A and Class B volumetric flasks?\u003c\/h3\u003e\n\u003cp\u003eClass A volumetric flasks have tighter calibration tolerances per ASTM E288 and include individual or batch calibration certificates for traceability. Class B flasks have wider tolerances and are suitable for educational use and non-critical applications. Both classes are manufactured from the same 3.3 borosilicate glass.\u003c\/p\u003e\n\u003ch3\u003eWhat volumetric flask sizes does LabSupplies.com carry?\u003c\/h3\u003e\n\u003cp\u003eLabSupplies.com stocks Globe Scientific volumetric flasks from 1 mL to 2000 mL in Class A and Class B calibrations. Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"100 mL Class A Wide Mouth Volumetric Flask Borosilicate Glass | Globe Scientific 8230100\",\"description\":\"100 mL Wide Mouth volumetric flask in 3.3 borosilicate glass. Meets ASTM E288. Globe Scientific 8230100.\",\"sku\":\"8230100\",\"mpn\":\"8230100\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Globe Scientific\"},\"manufacturer\":{\"@type\":\"Organization\",\"name\":\"Globe Scientific\"},\"offers\":{\"@type\":\"Offer\",\"url\":\"https:\/\/labsupplies.com\/products\/100ml-volumetric-flask-wide-mouth-class-a-borosilicate-glass-8230100\",\"priceCurrency\":\"USD\",\"price\":\"298.50\",\"availability\":\"https:\/\/schema.org\/InStock\",\"seller\":{\"@type\":\"Organization\",\"name\":\"LabSupplies.com\"}},\"material\":\"Borosilicate Glass 3.3\"}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is a 100 mL volumetric flask used for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A 100 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 100 mL graduation mark. Analytical chemists, pharmaceutical researchers, and clinical technicians rely on volumetric flasks for calibration standards, buffer preparation, and serial dilutions.\"}},{\"@type\":\"Question\",\"name\":\"What is the difference between Class A and Class B volumetric flasks?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Class A volumetric flasks have tighter calibration tolerances per ASTM E288 and include individual or batch calibration certificates for traceability. Class B flasks have wider tolerances and are suitable for educational use and non-critical applications. Both classes are manufactured from the same 3.3 borosilicate glass.\"}},{\"@type\":\"Question\",\"name\":\"What volumetric flask sizes does LabSupplies.com carry?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"LabSupplies.com stocks Globe Scientific volumetric flasks from 1 mL to 2000 mL in Class A and Class B calibrations. Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\"}}]}\n\u003c\/script\u003e","brand":"Globe Scientific","offers":[{"title":"100 mL - Box of 6","offer_id":48057386008808,"sku":"8230100","price":293.5,"currency_code":"USD","in_stock":true},{"title":"100 mL - Case of 12","offer_id":48057386041576,"sku":"8230100-CASE","price":477.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/file_f899416c-ee30-4670-8975-3e374114dbfe.jpg?v=1770920081"},{"product_id":"200ml-volumetric-flask-wide-mouth-class-a-borosilicate-glass-8230200","title":"200 mL Volumetric Flask Wide Mouth Class A | Globe Scientific 8230200","description":"\u003cp\u003eDesigned for easier filling and mixing of viscous solutions, this \u003cstrong\u003e200 mL Volumetric Flask Wide Mouth Class A Borosilicate Glass\u003c\/strong\u003e from Globe Scientific features a wider neck opening that accommodates solid reagents and simplifies cleaning.\u003c\/p\u003e\n\u003cp\u003eFor analytical laboratories requiring Class A precision with improved accessibility, the Globe Scientific 8230200 combines a diamond-etched graduation line with wide mouth convenience in a single 200 mL flask with a batch calibration report included.\u003c\/p\u003e\n\u003cp\u003eManufactured from ASTM E438, Type I, Class A, 3.3 borosilicate glass, this flask delivers the chemical resistance and thermal stability required for precise analytical work in pharmaceutical, clinical, and research settings.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Wide Mouth Class A Borosilicate Glass Features and Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Solution preparation, serial dilutions, calibration standards, and quantitative chemical analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e ASTM E288 — Class A calibration tolerances verified to specification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -180°C to 500°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass Type:\u003c\/strong\u003e ASTM E438, Type I, Class A, 3.3 borosilicate glass — resists thermal shock and chemical attack from acids, alkalis, and solvents\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation:\u003c\/strong\u003e Diamond-etched graduation line indicates calibrated capacity — To Contain (TC) at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e PP stopper included — prevents evaporation during solution equilibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAvailable Sizes and Pack Quantities\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eSKU\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eVolume\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eMouth Type\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003ePack Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eASTM Standard\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8230200\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e200 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eWide Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBox of 6\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8230200\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e200 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eWide Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCase of 12\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eLaboratory Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePreparing standard solutions and calibration curves for spectrophotometry, HPLC, and titration analyses\u003c\/li\u003e\n\u003cli\u003ePerforming serial dilutions for microbiological assays and cell counting procedures\u003c\/li\u003e\n\u003cli\u003eMaking buffer solutions with precise pH control for electrophoresis and chromatography\u003c\/li\u003e\n\u003cli\u003eDiluting concentrated stock solutions to working concentrations in clinical and pharmaceutical laboratories\u003c\/li\u003e\n\u003cli\u003ePreparing mobile phase solutions for liquid chromatography requiring exact volumetric ratios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality Assurance and Compliance\u003c\/h2\u003e\n\u003cp\u003eGlobe Scientific manufactures Globe Glass laboratory glassware under ISO 9001:2015 certified quality systems. In-house calibration is performed in an ISO 17025 certified laboratory, and Class A volumetric flasks include a batch calibration report for full traceability. Each flask undergoes automated inspection to verify graduation accuracy, wall thickness uniformity, and rim integrity.\u003c\/p\u003e\n\u003cp\u003eGlassGuard packaging uses heavy-duty, multi-layered corrugated containers tested against the rigors of small parcel shipping. This ensures that every flask arrives intact and ready for immediate use in your laboratory.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Comparison: Why Choose Globe Scientific?\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eGlobe Scientific 8230200\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eGlass Type\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E438, Type I, Class A, 3.3 Borosilicate\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBorosilicate (grade often unlisted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCalibration\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eClass A per ASTM E288\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften unlisted or unverified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eShips From\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eUSA inventory\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eAuthorized Dealer\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eYes — LabSupplies.com\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften third-party reseller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOrdering\u003c\/h2\u003e\n\u003cp\u003eAuthorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a 200 mL volumetric flask used for?\u003c\/h3\u003e\n\u003cp\u003eA 200 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 200 mL graduation mark. Analytical chemists, pharmaceutical researchers, and clinical technicians rely on volumetric flasks for calibration standards, buffer preparation, and serial dilutions.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between Class A and Class B volumetric flasks?\u003c\/h3\u003e\n\u003cp\u003eClass A volumetric flasks have tighter calibration tolerances per ASTM E288 and include individual or batch calibration certificates for traceability. Class B flasks have wider tolerances and are suitable for educational use and non-critical applications. Both classes are manufactured from the same 3.3 borosilicate glass.\u003c\/p\u003e\n\u003ch3\u003eWhat volumetric flask sizes does LabSupplies.com carry?\u003c\/h3\u003e\n\u003cp\u003eLabSupplies.com stocks Globe Scientific volumetric flasks from 1 mL to 2000 mL in Class A and Class B calibrations. Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"200 mL Class A Wide Mouth Volumetric Flask Borosilicate Glass | Globe Scientific 8230200\",\"description\":\"200 mL Wide Mouth volumetric flask in 3.3 borosilicate glass. Meets ASTM E288. Globe Scientific 8230200.\",\"sku\":\"8230200\",\"mpn\":\"8230200\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Globe Scientific\"},\"manufacturer\":{\"@type\":\"Organization\",\"name\":\"Globe Scientific\"},\"offers\":{\"@type\":\"Offer\",\"url\":\"https:\/\/labsupplies.com\/products\/200ml-volumetric-flask-wide-mouth-class-a-borosilicate-glass-8230200\",\"priceCurrency\":\"USD\",\"price\":\"387.20\",\"availability\":\"https:\/\/schema.org\/InStock\",\"seller\":{\"@type\":\"Organization\",\"name\":\"LabSupplies.com\"}},\"material\":\"Borosilicate Glass 3.3\"}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is a 200 mL volumetric flask used for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A 200 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 200 mL graduation mark. Analytical chemists, pharmaceutical researchers, and clinical technicians rely on volumetric flasks for calibration standards, buffer preparation, and serial dilutions.\"}},{\"@type\":\"Question\",\"name\":\"What is the difference between Class A and Class B volumetric flasks?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Class A volumetric flasks have tighter calibration tolerances per ASTM E288 and include individual or batch calibration certificates for traceability. Class B flasks have wider tolerances and are suitable for educational use and non-critical applications. Both classes are manufactured from the same 3.3 borosilicate glass.\"}},{\"@type\":\"Question\",\"name\":\"What volumetric flask sizes does LabSupplies.com carry?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"LabSupplies.com stocks Globe Scientific volumetric flasks from 1 mL to 2000 mL in Class A and Class B calibrations. Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\"}}]}\n\u003c\/script\u003e","brand":"Globe Scientific","offers":[{"title":"200 mL - Box of 6","offer_id":48057386074344,"sku":"8230200","price":382.2,"currency_code":"USD","in_stock":true},{"title":"200 mL - Case of 12","offer_id":48057386107112,"sku":"8230200-CASE","price":619.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/file_50d16b63-8755-4d77-ae75-2434e0f4d812.jpg?v=1770920082"},{"product_id":"250ml-volumetric-flask-wide-mouth-class-a-borosilicate-glass-8230250","title":"250 mL Volumetric Flask Wide Mouth Class A | Globe Scientific 8230250","description":"\u003cp\u003eDesigned for easier filling and mixing of viscous solutions, this \u003cstrong\u003e250 mL Volumetric Flask Wide Mouth Class A Borosilicate Glass\u003c\/strong\u003e from Globe Scientific features a wider neck opening that accommodates solid reagents and simplifies cleaning.\u003c\/p\u003e\n\u003cp\u003eFor analytical laboratories requiring Class A precision with improved accessibility, the Globe Scientific 8230250 combines a diamond-etched graduation line with wide mouth convenience in a single 250 mL flask with a batch calibration report included.\u003c\/p\u003e\n\u003cp\u003eManufactured from ASTM E438, Type I, Class A, 3.3 borosilicate glass, this flask delivers the chemical resistance and thermal stability required for precise analytical work in pharmaceutical, clinical, and research settings.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Wide Mouth Class A Borosilicate Glass Features and Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Solution preparation, serial dilutions, calibration standards, and quantitative chemical analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e ASTM E288 — Class A calibration tolerances verified to specification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -180°C to 500°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass Type:\u003c\/strong\u003e ASTM E438, Type I, Class A, 3.3 borosilicate glass — resists thermal shock and chemical attack from acids, alkalis, and solvents\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation:\u003c\/strong\u003e Diamond-etched graduation line indicates calibrated capacity — To Contain (TC) at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e PP stopper included — prevents evaporation during solution equilibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAvailable Sizes and Pack Quantities\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eSKU\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eVolume\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eMouth Type\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003ePack Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eASTM Standard\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8230250\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e250 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eWide Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBox of 6\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8230250\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e250 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eWide Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCase of 12\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eLaboratory Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePreparing standard solutions and calibration curves for spectrophotometry, HPLC, and titration analyses\u003c\/li\u003e\n\u003cli\u003ePerforming serial dilutions for microbiological assays and cell counting procedures\u003c\/li\u003e\n\u003cli\u003eMaking buffer solutions with precise pH control for electrophoresis and chromatography\u003c\/li\u003e\n\u003cli\u003eDiluting concentrated stock solutions to working concentrations in clinical and pharmaceutical laboratories\u003c\/li\u003e\n\u003cli\u003ePreparing mobile phase solutions for liquid chromatography requiring exact volumetric ratios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality Assurance and Compliance\u003c\/h2\u003e\n\u003cp\u003eGlobe Scientific manufactures Globe Glass laboratory glassware under ISO 9001:2015 certified quality systems. In-house calibration is performed in an ISO 17025 certified laboratory, and Class A volumetric flasks include a batch calibration report for full traceability. Each flask undergoes automated inspection to verify graduation accuracy, wall thickness uniformity, and rim integrity.\u003c\/p\u003e\n\u003cp\u003eGlassGuard packaging uses heavy-duty, multi-layered corrugated containers tested against the rigors of small parcel shipping. This ensures that every flask arrives intact and ready for immediate use in your laboratory.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Comparison: Why Choose Globe Scientific?\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eGlobe Scientific 8230250\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eGlass Type\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E438, Type I, Class A, 3.3 Borosilicate\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBorosilicate (grade often unlisted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCalibration\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eClass A per ASTM E288\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften unlisted or unverified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eShips From\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eUSA inventory\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eAuthorized Dealer\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eYes — LabSupplies.com\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften third-party reseller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOrdering\u003c\/h2\u003e\n\u003cp\u003eAuthorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a 250 mL volumetric flask used for?\u003c\/h3\u003e\n\u003cp\u003eA 250 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 250 mL graduation mark. Analytical chemists, pharmaceutical researchers, and clinical technicians rely on volumetric flasks for calibration standards, buffer preparation, and serial dilutions.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between Class A and Class B volumetric flasks?\u003c\/h3\u003e\n\u003cp\u003eClass A volumetric flasks have tighter calibration tolerances per ASTM E288 and include individual or batch calibration certificates for traceability. Class B flasks have wider tolerances and are suitable for educational use and non-critical applications. Both classes are manufactured from the same 3.3 borosilicate glass.\u003c\/p\u003e\n\u003ch3\u003eWhat volumetric flask sizes does LabSupplies.com carry?\u003c\/h3\u003e\n\u003cp\u003eLabSupplies.com stocks Globe Scientific volumetric flasks from 1 mL to 2000 mL in Class A and Class B calibrations. Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"250 mL Class A Wide Mouth Volumetric Flask Borosilicate Glass | Globe Scientific 8230250\",\"description\":\"250 mL Wide Mouth volumetric flask in 3.3 borosilicate glass. Meets ASTM E288. 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dilution, and quantitative analysis.\u003c\/p\u003e\n\u003cp\u003eFor laboratories that cannot afford measurement uncertainty, the Globe Scientific 8250010 features a diamond-etched graduation line and Class B calibration with batch calibration for traceability.\u003c\/p\u003e\n\u003cp\u003eManufactured from ASTM E438, Type I, Class A, 3.3 borosilicate glass, this flask delivers the chemical resistance and thermal stability required for precise analytical work in pharmaceutical, clinical, and research settings.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Class B Borosilicate Glass Features and Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Solution preparation, serial dilutions, calibration standards, and quantitative chemical analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e ASTM E288 — Class B calibration tolerances verified to specification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -180°C to 500°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass Type:\u003c\/strong\u003e ASTM E438, Type I, Class A, 3.3 borosilicate glass — resists thermal shock and chemical attack from acids, alkalis, and solvents\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation:\u003c\/strong\u003e Diamond-etched graduation line indicates calibrated capacity — To Contain (TC) at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e PP stopper included — prevents evaporation during solution equilibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAvailable Sizes and Pack Quantities\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eSKU\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eVolume\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eMouth Type\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003ePack Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eASTM Standard\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8250010\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e10 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBox of 6\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8250010\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e10 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCase of 12\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eLaboratory Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePreparing standard solutions and calibration curves for spectrophotometry, HPLC, and titration analyses\u003c\/li\u003e\n\u003cli\u003ePerforming serial dilutions for microbiological assays and cell counting procedures\u003c\/li\u003e\n\u003cli\u003eMaking buffer solutions with precise pH control for electrophoresis and chromatography\u003c\/li\u003e\n\u003cli\u003eDiluting concentrated stock solutions to working concentrations in clinical and pharmaceutical laboratories\u003c\/li\u003e\n\u003cli\u003ePreparing mobile phase solutions for liquid chromatography requiring exact volumetric ratios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality Assurance and Compliance\u003c\/h2\u003e\n\u003cp\u003eGlobe Scientific manufactures Globe Glass laboratory glassware under ISO 9001:2015 certified quality systems. In-house calibration is performed in an ISO 17025 certified laboratory, and Class B volumetric flasks include batch calibration verification. Each flask undergoes automated inspection to verify graduation accuracy, wall thickness uniformity, and rim integrity.\u003c\/p\u003e\n\u003cp\u003eGlassGuard packaging uses heavy-duty, multi-layered corrugated containers tested against the rigors of small parcel shipping. This ensures that every flask arrives intact and ready for immediate use in your laboratory.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Comparison: Why Choose Globe Scientific?\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eGlobe Scientific 8250010\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eGlass Type\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E438, Type I, Class A, 3.3 Borosilicate\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBorosilicate (grade often unlisted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCalibration\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eClass B per ASTM E288\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften unlisted or unverified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eShips From\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eUSA inventory\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eAuthorized Dealer\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eYes — LabSupplies.com\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften third-party reseller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOrdering\u003c\/h2\u003e\n\u003cp\u003eAuthorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a 10 mL volumetric flask used for?\u003c\/h3\u003e\n\u003cp\u003eA 10 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 10 mL graduation mark. Analytical chemists, pharmaceutical researchers, and clinical technicians rely on volumetric flasks for calibration standards, buffer preparation, and serial dilutions.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between Class A and Class B volumetric flasks?\u003c\/h3\u003e\n\u003cp\u003eClass A volumetric flasks have tighter calibration tolerances per ASTM E288 and include individual or batch calibration certificates for traceability. Class B flasks have wider tolerances and are suitable for educational use and non-critical applications. Both classes are manufactured from the same 3.3 borosilicate glass.\u003c\/p\u003e\n\u003ch3\u003eWhat volumetric flask sizes does LabSupplies.com carry?\u003c\/h3\u003e\n\u003cp\u003eLabSupplies.com stocks Globe Scientific volumetric flasks from 1 mL to 2000 mL in Class A and Class B calibrations. Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"10 mL Class B Volumetric Flask Borosilicate Glass | Globe Scientific 8250010\",\"description\":\"10 mL Narrow Mouth volumetric flask in 3.3 borosilicate glass. Meets ASTM E288. Globe Scientific 8250010.\",\"sku\":\"8250010\",\"mpn\":\"8250010\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Globe Scientific\"},\"manufacturer\":{\"@type\":\"Organization\",\"name\":\"Globe Scientific\"},\"offers\":{\"@type\":\"Offer\",\"url\":\"https:\/\/labsupplies.com\/products\/10ml-volumetric-flask-class-b-borosilicate-glass-8250010\",\"priceCurrency\":\"USD\",\"price\":\"188.10\",\"availability\":\"https:\/\/schema.org\/InStock\",\"seller\":{\"@type\":\"Organization\",\"name\":\"LabSupplies.com\"}},\"material\":\"Borosilicate Glass 3.3\"}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is a 10 mL volumetric flask used for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A 10 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 10 mL graduation mark. 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Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\"}}]}\n\u003c\/script\u003e","brand":"Globe Scientific","offers":[{"title":"10 mL - Box of 6","offer_id":48057386664168,"sku":"8250010","price":183.1,"currency_code":"USD","in_stock":true},{"title":"10 mL - Case of 12","offer_id":48057386696936,"sku":"8250010-CASE","price":302.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/file_ab4b51ec-ae9c-4df2-966f-e351b704a780.jpg?v=1770920087"},{"product_id":"25ml-volumetric-flask-class-b-borosilicate-glass-8250025","title":"25 mL Volumetric Flask Class B Borosilicate Glass | Globe Scientific 8250025","description":"\u003cp\u003eCalibrated to meet ASTM E288 tolerance specifications, this \u003cstrong\u003e25 mL Volumetric Flask Class B Borosilicate Glass\u003c\/strong\u003e from Globe Scientific provides the precision required for solution preparation, dilution, and quantitative analysis.\u003c\/p\u003e\n\u003cp\u003eFor laboratories that cannot afford measurement uncertainty, the Globe Scientific 8250025 features a diamond-etched graduation line and Class B calibration with batch calibration for traceability.\u003c\/p\u003e\n\u003cp\u003eManufactured from ASTM E438, Type I, Class A, 3.3 borosilicate glass, this flask delivers the chemical resistance and thermal stability required for precise analytical work in pharmaceutical, clinical, and research settings.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Class B Borosilicate Glass Features and Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Solution preparation, serial dilutions, calibration standards, and quantitative chemical analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e ASTM E288 — Class B calibration tolerances verified to specification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -180°C to 500°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass Type:\u003c\/strong\u003e ASTM E438, Type I, Class A, 3.3 borosilicate glass — resists thermal shock and chemical attack from acids, alkalis, and solvents\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation:\u003c\/strong\u003e Diamond-etched graduation line indicates calibrated capacity — To Contain (TC) at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e PP stopper included — prevents evaporation during solution equilibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAvailable Sizes and Pack Quantities\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eSKU\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eVolume\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eMouth Type\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003ePack Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eASTM Standard\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8250025\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e25 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBox of 6\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8250025\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e25 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCase of 12\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eLaboratory Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePreparing standard solutions and calibration curves for spectrophotometry, HPLC, and titration analyses\u003c\/li\u003e\n\u003cli\u003ePerforming serial dilutions for microbiological assays and cell counting procedures\u003c\/li\u003e\n\u003cli\u003eMaking buffer solutions with precise pH control for electrophoresis and chromatography\u003c\/li\u003e\n\u003cli\u003eDiluting concentrated stock solutions to working concentrations in clinical and pharmaceutical laboratories\u003c\/li\u003e\n\u003cli\u003ePreparing mobile phase solutions for liquid chromatography requiring exact volumetric ratios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality Assurance and Compliance\u003c\/h2\u003e\n\u003cp\u003eGlobe Scientific manufactures Globe Glass laboratory glassware under ISO 9001:2015 certified quality systems. In-house calibration is performed in an ISO 17025 certified laboratory, and Class B volumetric flasks include batch calibration verification. Each flask undergoes automated inspection to verify graduation accuracy, wall thickness uniformity, and rim integrity.\u003c\/p\u003e\n\u003cp\u003eGlassGuard packaging uses heavy-duty, multi-layered corrugated containers tested against the rigors of small parcel shipping. This ensures that every flask arrives intact and ready for immediate use in your laboratory.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Comparison: Why Choose Globe Scientific?\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eGlobe Scientific 8250025\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eGlass Type\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E438, Type I, Class A, 3.3 Borosilicate\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBorosilicate (grade often unlisted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCalibration\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eClass B per ASTM E288\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften unlisted or unverified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eShips From\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eUSA inventory\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eAuthorized Dealer\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eYes — LabSupplies.com\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften third-party reseller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOrdering\u003c\/h2\u003e\n\u003cp\u003eAuthorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a 25 mL volumetric flask used for?\u003c\/h3\u003e\n\u003cp\u003eA 25 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 25 mL graduation mark. Analytical chemists, pharmaceutical researchers, and clinical technicians rely on volumetric flasks for calibration standards, buffer preparation, and serial dilutions.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between Class A and Class B volumetric flasks?\u003c\/h3\u003e\n\u003cp\u003eClass A volumetric flasks have tighter calibration tolerances per ASTM E288 and include individual or batch calibration certificates for traceability. Class B flasks have wider tolerances and are suitable for educational use and non-critical applications. Both classes are manufactured from the same 3.3 borosilicate glass.\u003c\/p\u003e\n\u003ch3\u003eWhat volumetric flask sizes does LabSupplies.com carry?\u003c\/h3\u003e\n\u003cp\u003eLabSupplies.com stocks Globe Scientific volumetric flasks from 1 mL to 2000 mL in Class A and Class B calibrations. Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"25 mL Class B Volumetric Flask Borosilicate Glass | Globe Scientific 8250025\",\"description\":\"25 mL Narrow Mouth volumetric flask in 3.3 borosilicate glass. Meets ASTM E288. 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Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\"}}]}\n\u003c\/script\u003e","brand":"Globe Scientific","offers":[{"title":"25 mL - Box of 6","offer_id":48057387122920,"sku":"8250025","price":216.1,"currency_code":"USD","in_stock":true},{"title":"25 mL - Case of 12","offer_id":48057387155688,"sku":"8250025-CASE","price":355.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/file_6009129d-c3dd-41ec-9ca7-9bb6e67e4a70.jpg?v=1770920087"},{"product_id":"50ml-volumetric-flask-class-b-borosilicate-glass-8250050","title":"50 mL Volumetric Flask Class B Borosilicate Glass | Globe Scientific 8250050","description":"\u003cp\u003eCalibrated to meet ASTM E288 tolerance specifications, this \u003cstrong\u003e50 mL Volumetric Flask Class B Borosilicate Glass\u003c\/strong\u003e from Globe Scientific provides the precision required for solution preparation, dilution, and quantitative analysis.\u003c\/p\u003e\n\u003cp\u003eFor laboratories that cannot afford measurement uncertainty, the Globe Scientific 8250050 features a diamond-etched graduation line and Class B calibration with batch calibration for traceability.\u003c\/p\u003e\n\u003cp\u003eManufactured from ASTM E438, Type I, Class A, 3.3 borosilicate glass, this flask delivers the chemical resistance and thermal stability required for precise analytical work in pharmaceutical, clinical, and research settings.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Class B Borosilicate Glass Features and Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Solution preparation, serial dilutions, calibration standards, and quantitative chemical analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e ASTM E288 — Class B calibration tolerances verified to specification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -180°C to 500°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass Type:\u003c\/strong\u003e ASTM E438, Type I, Class A, 3.3 borosilicate glass — resists thermal shock and chemical attack from acids, alkalis, and solvents\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation:\u003c\/strong\u003e Diamond-etched graduation line indicates calibrated capacity — To Contain (TC) at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e PP stopper included — prevents evaporation during solution equilibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAvailable Sizes and Pack Quantities\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eSKU\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eVolume\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eMouth Type\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003ePack Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eASTM Standard\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8250050\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e50 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBox of 6\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8250050\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e50 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCase of 12\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eLaboratory Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePreparing standard solutions and calibration curves for spectrophotometry, HPLC, and titration analyses\u003c\/li\u003e\n\u003cli\u003ePerforming serial dilutions for microbiological assays and cell counting procedures\u003c\/li\u003e\n\u003cli\u003eMaking buffer solutions with precise pH control for electrophoresis and chromatography\u003c\/li\u003e\n\u003cli\u003eDiluting concentrated stock solutions to working concentrations in clinical and pharmaceutical laboratories\u003c\/li\u003e\n\u003cli\u003ePreparing mobile phase solutions for liquid chromatography requiring exact volumetric ratios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality Assurance and Compliance\u003c\/h2\u003e\n\u003cp\u003eGlobe Scientific manufactures Globe Glass laboratory glassware under ISO 9001:2015 certified quality systems. In-house calibration is performed in an ISO 17025 certified laboratory, and Class B volumetric flasks include batch calibration verification. Each flask undergoes automated inspection to verify graduation accuracy, wall thickness uniformity, and rim integrity.\u003c\/p\u003e\n\u003cp\u003eGlassGuard packaging uses heavy-duty, multi-layered corrugated containers tested against the rigors of small parcel shipping. This ensures that every flask arrives intact and ready for immediate use in your laboratory.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Comparison: Why Choose Globe Scientific?\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eGlobe Scientific 8250050\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eGlass Type\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E438, Type I, Class A, 3.3 Borosilicate\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBorosilicate (grade often unlisted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCalibration\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eClass B per ASTM E288\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften unlisted or unverified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eShips From\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eUSA inventory\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eAuthorized Dealer\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eYes — LabSupplies.com\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften third-party reseller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOrdering\u003c\/h2\u003e\n\u003cp\u003eAuthorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a 50 mL volumetric flask used for?\u003c\/h3\u003e\n\u003cp\u003eA 50 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 50 mL graduation mark. Analytical chemists, pharmaceutical researchers, and clinical technicians rely on volumetric flasks for calibration standards, buffer preparation, and serial dilutions.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between Class A and Class B volumetric flasks?\u003c\/h3\u003e\n\u003cp\u003eClass A volumetric flasks have tighter calibration tolerances per ASTM E288 and include individual or batch calibration certificates for traceability. Class B flasks have wider tolerances and are suitable for educational use and non-critical applications. Both classes are manufactured from the same 3.3 borosilicate glass.\u003c\/p\u003e\n\u003ch3\u003eWhat volumetric flask sizes does LabSupplies.com carry?\u003c\/h3\u003e\n\u003cp\u003eLabSupplies.com stocks Globe Scientific volumetric flasks from 1 mL to 2000 mL in Class A and Class B calibrations. Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"50 mL Class B Volumetric Flask Borosilicate Glass | Globe Scientific 8250050\",\"description\":\"50 mL Narrow Mouth volumetric flask in 3.3 borosilicate glass. Meets ASTM E288. 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Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\"}}]}\n\u003c\/script\u003e","brand":"Globe Scientific","offers":[{"title":"50 mL - Box of 6","offer_id":48057387647208,"sku":"8250050","price":240.1,"currency_code":"USD","in_stock":true},{"title":"50 mL - Case of 12","offer_id":48057387679976,"sku":"8250050-CASE","price":393.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/file_7a9949cd-86fd-4e24-beab-415e9df935c1.jpg?v=1770920089"},{"product_id":"100ml-volumetric-flask-class-b-borosilicate-glass-8250100","title":"100 mL Volumetric Flask Class B Borosilicate Glass | Globe Scientific 8250100","description":"\u003cp\u003eCalibrated to meet ASTM E288 tolerance specifications, this \u003cstrong\u003e100 mL Volumetric Flask Class B Borosilicate Glass\u003c\/strong\u003e from Globe Scientific provides the precision required for solution preparation, dilution, and quantitative analysis.\u003c\/p\u003e\n\u003cp\u003eFor laboratories that cannot afford measurement uncertainty, the Globe Scientific 8250100 features a diamond-etched graduation line and Class B calibration with batch calibration for traceability.\u003c\/p\u003e\n\u003cp\u003eManufactured from ASTM E438, Type I, Class A, 3.3 borosilicate glass, this flask delivers the chemical resistance and thermal stability required for precise analytical work in pharmaceutical, clinical, and research settings.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Class B Borosilicate Glass Features and Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Solution preparation, serial dilutions, calibration standards, and quantitative chemical analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e ASTM E288 — Class B calibration tolerances verified to specification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -180°C to 500°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass Type:\u003c\/strong\u003e ASTM E438, Type I, Class A, 3.3 borosilicate glass — resists thermal shock and chemical attack from acids, alkalis, and solvents\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation:\u003c\/strong\u003e Diamond-etched graduation line indicates calibrated capacity — To Contain (TC) at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e PP stopper included — prevents evaporation during solution equilibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAvailable Sizes and Pack Quantities\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eSKU\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eVolume\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eMouth Type\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003ePack Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eASTM Standard\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8250100\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e100 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBox of 6\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8250100\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e100 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCase of 12\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eLaboratory Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePreparing standard solutions and calibration curves for spectrophotometry, HPLC, and titration analyses\u003c\/li\u003e\n\u003cli\u003ePerforming serial dilutions for microbiological assays and cell counting procedures\u003c\/li\u003e\n\u003cli\u003eMaking buffer solutions with precise pH control for electrophoresis and chromatography\u003c\/li\u003e\n\u003cli\u003eDiluting concentrated stock solutions to working concentrations in clinical and pharmaceutical laboratories\u003c\/li\u003e\n\u003cli\u003ePreparing mobile phase solutions for liquid chromatography requiring exact volumetric ratios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality Assurance and Compliance\u003c\/h2\u003e\n\u003cp\u003eGlobe Scientific manufactures Globe Glass laboratory glassware under ISO 9001:2015 certified quality systems. In-house calibration is performed in an ISO 17025 certified laboratory, and Class B volumetric flasks include batch calibration verification. Each flask undergoes automated inspection to verify graduation accuracy, wall thickness uniformity, and rim integrity.\u003c\/p\u003e\n\u003cp\u003eGlassGuard packaging uses heavy-duty, multi-layered corrugated containers tested against the rigors of small parcel shipping. This ensures that every flask arrives intact and ready for immediate use in your laboratory.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Comparison: Why Choose Globe Scientific?\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eGlobe Scientific 8250100\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eGlass Type\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E438, Type I, Class A, 3.3 Borosilicate\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBorosilicate (grade often unlisted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCalibration\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eClass B per ASTM E288\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften unlisted or unverified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eShips From\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eUSA inventory\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eAuthorized Dealer\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eYes — LabSupplies.com\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften third-party reseller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOrdering\u003c\/h2\u003e\n\u003cp\u003eAuthorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a 100 mL volumetric flask used for?\u003c\/h3\u003e\n\u003cp\u003eA 100 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 100 mL graduation mark. Analytical chemists, pharmaceutical researchers, and clinical technicians rely on volumetric flasks for calibration standards, buffer preparation, and serial dilutions.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between Class A and Class B volumetric flasks?\u003c\/h3\u003e\n\u003cp\u003eClass A volumetric flasks have tighter calibration tolerances per ASTM E288 and include individual or batch calibration certificates for traceability. Class B flasks have wider tolerances and are suitable for educational use and non-critical applications. Both classes are manufactured from the same 3.3 borosilicate glass.\u003c\/p\u003e\n\u003ch3\u003eWhat volumetric flask sizes does LabSupplies.com carry?\u003c\/h3\u003e\n\u003cp\u003eLabSupplies.com stocks Globe Scientific volumetric flasks from 1 mL to 2000 mL in Class A and Class B calibrations. Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"100 mL Class B Volumetric Flask Borosilicate Glass | Globe Scientific 8250100\",\"description\":\"100 mL Narrow Mouth volumetric flask in 3.3 borosilicate glass. Meets ASTM E288. Globe Scientific 8250100.\",\"sku\":\"8250100\",\"mpn\":\"8250100\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Globe Scientific\"},\"manufacturer\":{\"@type\":\"Organization\",\"name\":\"Globe Scientific\"},\"offers\":{\"@type\":\"Offer\",\"url\":\"https:\/\/labsupplies.com\/products\/100ml-volumetric-flask-class-b-borosilicate-glass-8250100\",\"priceCurrency\":\"USD\",\"price\":\"269.20\",\"availability\":\"https:\/\/schema.org\/InStock\",\"seller\":{\"@type\":\"Organization\",\"name\":\"LabSupplies.com\"}},\"material\":\"Borosilicate Glass 3.3\"}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is a 100 mL volumetric flask used for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A 100 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 100 mL graduation mark. 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preparation, dilution, and quantitative analysis.\u003c\/p\u003e\n\u003cp\u003eFor laboratories that cannot afford measurement uncertainty, the Globe Scientific 8250200 features a diamond-etched graduation line and Class B calibration with batch calibration for traceability.\u003c\/p\u003e\n\u003cp\u003eManufactured from ASTM E438, Type I, Class A, 3.3 borosilicate glass, this flask delivers the chemical resistance and thermal stability required for precise analytical work in pharmaceutical, clinical, and research settings.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Class B Borosilicate Glass Features and Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Solution preparation, serial dilutions, calibration standards, and quantitative chemical analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e ASTM E288 — Class B calibration tolerances verified to specification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -180°C to 500°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass Type:\u003c\/strong\u003e ASTM E438, Type I, Class A, 3.3 borosilicate glass — resists thermal shock and chemical attack from acids, alkalis, and solvents\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation:\u003c\/strong\u003e Diamond-etched graduation line indicates calibrated capacity — To Contain (TC) at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e PP stopper included — prevents evaporation during solution equilibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAvailable Sizes and Pack Quantities\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eSKU\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eVolume\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eMouth Type\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003ePack Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eASTM Standard\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8250200\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e200 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBox of 6\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8250200\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e200 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCase of 12\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eLaboratory Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePreparing standard solutions and calibration curves for spectrophotometry, HPLC, and titration analyses\u003c\/li\u003e\n\u003cli\u003ePerforming serial dilutions for microbiological assays and cell counting procedures\u003c\/li\u003e\n\u003cli\u003eMaking buffer solutions with precise pH control for electrophoresis and chromatography\u003c\/li\u003e\n\u003cli\u003eDiluting concentrated stock solutions to working concentrations in clinical and pharmaceutical laboratories\u003c\/li\u003e\n\u003cli\u003ePreparing mobile phase solutions for liquid chromatography requiring exact volumetric ratios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality Assurance and Compliance\u003c\/h2\u003e\n\u003cp\u003eGlobe Scientific manufactures Globe Glass laboratory glassware under ISO 9001:2015 certified quality systems. In-house calibration is performed in an ISO 17025 certified laboratory, and Class B volumetric flasks include batch calibration verification. Each flask undergoes automated inspection to verify graduation accuracy, wall thickness uniformity, and rim integrity.\u003c\/p\u003e\n\u003cp\u003eGlassGuard packaging uses heavy-duty, multi-layered corrugated containers tested against the rigors of small parcel shipping. This ensures that every flask arrives intact and ready for immediate use in your laboratory.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Comparison: Why Choose Globe Scientific?\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eGlobe Scientific 8250200\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eGlass Type\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E438, Type I, Class A, 3.3 Borosilicate\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBorosilicate (grade often unlisted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCalibration\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eClass B per ASTM E288\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften unlisted or unverified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eShips From\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eUSA inventory\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eAuthorized Dealer\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eYes — LabSupplies.com\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften third-party reseller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOrdering\u003c\/h2\u003e\n\u003cp\u003eAuthorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a 200 mL volumetric flask used for?\u003c\/h3\u003e\n\u003cp\u003eA 200 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 200 mL graduation mark. Analytical chemists, pharmaceutical researchers, and clinical technicians rely on volumetric flasks for calibration standards, buffer preparation, and serial dilutions.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between Class A and Class B volumetric flasks?\u003c\/h3\u003e\n\u003cp\u003eClass A volumetric flasks have tighter calibration tolerances per ASTM E288 and include individual or batch calibration certificates for traceability. Class B flasks have wider tolerances and are suitable for educational use and non-critical applications. Both classes are manufactured from the same 3.3 borosilicate glass.\u003c\/p\u003e\n\u003ch3\u003eWhat volumetric flask sizes does LabSupplies.com carry?\u003c\/h3\u003e\n\u003cp\u003eLabSupplies.com stocks Globe Scientific volumetric flasks from 1 mL to 2000 mL in Class A and Class B calibrations. Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"200 mL Class B Volumetric Flask Borosilicate Glass | Globe Scientific 8250200\",\"description\":\"200 mL Narrow Mouth volumetric flask in 3.3 borosilicate glass. Meets ASTM E288. 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preparation, dilution, and quantitative analysis.\u003c\/p\u003e\n\u003cp\u003eFor laboratories that cannot afford measurement uncertainty, the Globe Scientific 8250250 features a diamond-etched graduation line and Class B calibration with batch calibration for traceability.\u003c\/p\u003e\n\u003cp\u003eManufactured from ASTM E438, Type I, Class A, 3.3 borosilicate glass, this flask delivers the chemical resistance and thermal stability required for precise analytical work in pharmaceutical, clinical, and research settings.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Class B Borosilicate Glass Features and Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Solution preparation, serial dilutions, calibration standards, and quantitative chemical analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e ASTM E288 — Class B calibration tolerances verified to specification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -180°C to 500°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass Type:\u003c\/strong\u003e ASTM E438, Type I, Class A, 3.3 borosilicate glass — resists thermal shock and chemical attack from acids, alkalis, and solvents\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation:\u003c\/strong\u003e Diamond-etched graduation line indicates calibrated capacity — To Contain (TC) at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e PP stopper included — prevents evaporation during solution equilibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAvailable Sizes and Pack Quantities\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 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style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBox of 6\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8250250\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e250 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCase of 12\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eLaboratory Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePreparing standard solutions and calibration curves for spectrophotometry, HPLC, and titration analyses\u003c\/li\u003e\n\u003cli\u003ePerforming serial dilutions for microbiological assays and cell counting procedures\u003c\/li\u003e\n\u003cli\u003eMaking buffer solutions with precise pH control for electrophoresis and chromatography\u003c\/li\u003e\n\u003cli\u003eDiluting concentrated stock solutions to working concentrations in clinical and pharmaceutical laboratories\u003c\/li\u003e\n\u003cli\u003ePreparing mobile phase solutions for liquid chromatography requiring exact volumetric ratios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality Assurance and Compliance\u003c\/h2\u003e\n\u003cp\u003eGlobe Scientific manufactures Globe Glass laboratory glassware under ISO 9001:2015 certified quality systems. In-house calibration is performed in an ISO 17025 certified laboratory, and Class B volumetric flasks include batch calibration verification. Each flask undergoes automated inspection to verify graduation accuracy, wall thickness uniformity, and rim integrity.\u003c\/p\u003e\n\u003cp\u003eGlassGuard packaging uses heavy-duty, multi-layered corrugated containers tested against the rigors of small parcel shipping. This ensures that every flask arrives intact and ready for immediate use in your laboratory.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Comparison: Why Choose Globe Scientific?\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eGlobe Scientific 8250250\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eGlass Type\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E438, Type I, Class A, 3.3 Borosilicate\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBorosilicate (grade often unlisted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCalibration\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eClass B per ASTM E288\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften unlisted or unverified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eShips From\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eUSA inventory\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eAuthorized Dealer\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eYes — LabSupplies.com\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften third-party reseller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOrdering\u003c\/h2\u003e\n\u003cp\u003eAuthorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a 250 mL volumetric flask used for?\u003c\/h3\u003e\n\u003cp\u003eA 250 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 250 mL graduation mark. Analytical chemists, pharmaceutical researchers, and clinical technicians rely on volumetric flasks for calibration standards, buffer preparation, and serial dilutions.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between Class A and Class B volumetric flasks?\u003c\/h3\u003e\n\u003cp\u003eClass A volumetric flasks have tighter calibration tolerances per ASTM E288 and include individual or batch calibration certificates for traceability. Class B flasks have wider tolerances and are suitable for educational use and non-critical applications. Both classes are manufactured from the same 3.3 borosilicate glass.\u003c\/p\u003e\n\u003ch3\u003eWhat volumetric flask sizes does LabSupplies.com carry?\u003c\/h3\u003e\n\u003cp\u003eLabSupplies.com stocks Globe Scientific volumetric flasks from 1 mL to 2000 mL in Class A and Class B calibrations. Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"250 mL Class B Volumetric Flask Borosilicate Glass | Globe Scientific 8250250\",\"description\":\"250 mL Narrow Mouth volumetric flask in 3.3 borosilicate glass. Meets ASTM E288. Globe Scientific 8250250.\",\"sku\":\"8250250\",\"mpn\":\"8250250\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Globe Scientific\"},\"manufacturer\":{\"@type\":\"Organization\",\"name\":\"Globe Scientific\"},\"offers\":{\"@type\":\"Offer\",\"url\":\"https:\/\/labsupplies.com\/products\/250ml-volumetric-flask-class-b-borosilicate-glass-8250250\",\"priceCurrency\":\"USD\",\"price\":\"327.60\",\"availability\":\"https:\/\/schema.org\/InStock\",\"seller\":{\"@type\":\"Organization\",\"name\":\"LabSupplies.com\"}},\"material\":\"Borosilicate Glass 3.3\"}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is a 250 mL volumetric flask used for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A 250 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 250 mL graduation mark. Analytical chemists, pharmaceutical researchers, and clinical technicians rely on volumetric flasks for calibration standards, buffer preparation, and serial dilutions.\"}},{\"@type\":\"Question\",\"name\":\"What is the difference between Class A and Class B volumetric flasks?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Class A volumetric flasks have tighter calibration tolerances per ASTM E288 and include individual or batch calibration certificates for traceability. Class B flasks have wider tolerances and are suitable for educational use and non-critical applications. Both classes are manufactured from the same 3.3 borosilicate glass.\"}},{\"@type\":\"Question\",\"name\":\"What volumetric flask sizes does LabSupplies.com carry?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"LabSupplies.com stocks Globe Scientific volumetric flasks from 1 mL to 2000 mL in Class A and Class B calibrations. Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\"}}]}\n\u003c\/script\u003e","brand":"Globe Scientific","offers":[{"title":"250 mL - Box of 6","offer_id":48057387974888,"sku":"8250250","price":322.6,"currency_code":"USD","in_stock":true},{"title":"250 mL - Case of 12","offer_id":48057388007656,"sku":"8250250-CASE","price":523.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/file_ae7d5427-7b71-4250-9422-539693c331e6.jpg?v=1770920093"},{"product_id":"500ml-volumetric-flask-class-b-borosilicate-glass-8250500","title":"500 mL Volumetric Flask Class B Borosilicate Glass | Globe Scientific 8250500","description":"\u003cp\u003eCalibrated to meet ASTM E288 tolerance specifications, this \u003cstrong\u003e500 mL Volumetric Flask Class B Borosilicate Glass\u003c\/strong\u003e from Globe Scientific provides the precision required for solution preparation, dilution, and quantitative analysis.\u003c\/p\u003e\n\u003cp\u003eFor laboratories that cannot afford measurement uncertainty, the Globe Scientific 8250500 features a diamond-etched graduation line and Class B calibration with batch calibration for traceability.\u003c\/p\u003e\n\u003cp\u003eManufactured from ASTM E438, Type I, Class A, 3.3 borosilicate glass, this flask delivers the chemical resistance and thermal stability required for precise analytical work in pharmaceutical, clinical, and research settings.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Class B Borosilicate Glass Features and Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Solution preparation, serial dilutions, calibration standards, and quantitative chemical analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e ASTM E288 — Class B calibration tolerances verified to specification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -180°C to 500°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass Type:\u003c\/strong\u003e ASTM E438, Type I, Class A, 3.3 borosilicate glass — resists thermal shock and chemical attack from acids, alkalis, and solvents\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation:\u003c\/strong\u003e Diamond-etched graduation line indicates calibrated capacity — To Contain (TC) at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e PP stopper included — prevents evaporation during solution equilibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAvailable Sizes and Pack Quantities\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eSKU\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eVolume\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eMouth Type\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003ePack Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eASTM Standard\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8250500\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e500 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBox of 6\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8250500\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e500 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCase of 12\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eLaboratory Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePreparing standard solutions and calibration curves for spectrophotometry, HPLC, and titration analyses\u003c\/li\u003e\n\u003cli\u003ePerforming serial dilutions for microbiological assays and cell counting procedures\u003c\/li\u003e\n\u003cli\u003eMaking buffer solutions with precise pH control for electrophoresis and chromatography\u003c\/li\u003e\n\u003cli\u003eDiluting concentrated stock solutions to working concentrations in clinical and pharmaceutical laboratories\u003c\/li\u003e\n\u003cli\u003ePreparing mobile phase solutions for liquid chromatography requiring exact volumetric ratios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality Assurance and Compliance\u003c\/h2\u003e\n\u003cp\u003eGlobe Scientific manufactures Globe Glass laboratory glassware under ISO 9001:2015 certified quality systems. In-house calibration is performed in an ISO 17025 certified laboratory, and Class B volumetric flasks include batch calibration verification. Each flask undergoes automated inspection to verify graduation accuracy, wall thickness uniformity, and rim integrity.\u003c\/p\u003e\n\u003cp\u003eGlassGuard packaging uses heavy-duty, multi-layered corrugated containers tested against the rigors of small parcel shipping. This ensures that every flask arrives intact and ready for immediate use in your laboratory.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Comparison: Why Choose Globe Scientific?\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eGlobe Scientific 8250500\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eGlass Type\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E438, Type I, Class A, 3.3 Borosilicate\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBorosilicate (grade often unlisted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCalibration\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eClass B per ASTM E288\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften unlisted or unverified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eShips From\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eUSA inventory\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eAuthorized Dealer\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eYes — LabSupplies.com\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften third-party reseller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOrdering\u003c\/h2\u003e\n\u003cp\u003eAuthorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a 500 mL volumetric flask used for?\u003c\/h3\u003e\n\u003cp\u003eA 500 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 500 mL graduation mark. Analytical chemists, pharmaceutical researchers, and clinical technicians rely on volumetric flasks for calibration standards, buffer preparation, and serial dilutions.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between Class A and Class B volumetric flasks?\u003c\/h3\u003e\n\u003cp\u003eClass A volumetric flasks have tighter calibration tolerances per ASTM E288 and include individual or batch calibration certificates for traceability. Class B flasks have wider tolerances and are suitable for educational use and non-critical applications. Both classes are manufactured from the same 3.3 borosilicate glass.\u003c\/p\u003e\n\u003ch3\u003eWhat volumetric flask sizes does LabSupplies.com carry?\u003c\/h3\u003e\n\u003cp\u003eLabSupplies.com stocks Globe Scientific volumetric flasks from 1 mL to 2000 mL in Class A and Class B calibrations. Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"500 mL Class B Volumetric Flask Borosilicate Glass | Globe Scientific 8250500\",\"description\":\"500 mL Narrow Mouth volumetric flask in 3.3 borosilicate glass. Meets ASTM E288. 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specification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -180°C to 500°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass Type:\u003c\/strong\u003e ASTM E438, Type I, Class A, 3.3 borosilicate glass — resists thermal shock and chemical attack from acids, alkalis, and solvents\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation:\u003c\/strong\u003e Diamond-etched graduation line indicates calibrated capacity — To Contain (TC) at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e PP stopper included — prevents evaporation during solution equilibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAvailable Sizes and Pack Quantities\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eSKU\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eVolume\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eMouth Type\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003ePack Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eASTM Standard\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8251000\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e1000 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBox of 1\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8251000\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e1000 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCase of 6\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eLaboratory Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePreparing standard solutions and calibration curves for spectrophotometry, HPLC, and titration analyses\u003c\/li\u003e\n\u003cli\u003ePerforming serial dilutions for microbiological assays and cell counting procedures\u003c\/li\u003e\n\u003cli\u003eMaking buffer solutions with precise pH control for electrophoresis and chromatography\u003c\/li\u003e\n\u003cli\u003eDiluting concentrated stock solutions to working concentrations in clinical and pharmaceutical laboratories\u003c\/li\u003e\n\u003cli\u003ePreparing mobile phase solutions for liquid chromatography requiring exact volumetric ratios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality Assurance and Compliance\u003c\/h2\u003e\n\u003cp\u003eGlobe Scientific manufactures Globe Glass laboratory glassware under ISO 9001:2015 certified quality systems. In-house calibration is performed in an ISO 17025 certified laboratory, and Class B volumetric flasks include batch calibration verification. Each flask undergoes automated inspection to verify graduation accuracy, wall thickness uniformity, and rim integrity.\u003c\/p\u003e\n\u003cp\u003eGlassGuard packaging uses heavy-duty, multi-layered corrugated containers tested against the rigors of small parcel shipping. This ensures that every flask arrives intact and ready for immediate use in your laboratory.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Comparison: Why Choose Globe Scientific?\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eGlobe Scientific 8251000\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eGlass Type\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E438, Type I, Class A, 3.3 Borosilicate\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBorosilicate (grade often unlisted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCalibration\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eClass B per ASTM E288\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften unlisted or unverified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eShips From\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eUSA inventory\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eAuthorized Dealer\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eYes — LabSupplies.com\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften third-party reseller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOrdering\u003c\/h2\u003e\n\u003cp\u003eAuthorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a 1000 mL volumetric flask used for?\u003c\/h3\u003e\n\u003cp\u003eA 1000 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 1000 mL graduation mark. Analytical chemists, pharmaceutical researchers, and clinical technicians rely on volumetric flasks for calibration standards, buffer preparation, and serial dilutions.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between Class A and Class B volumetric flasks?\u003c\/h3\u003e\n\u003cp\u003eClass A volumetric flasks have tighter calibration tolerances per ASTM E288 and include individual or batch calibration certificates for traceability. Class B flasks have wider tolerances and are suitable for educational use and non-critical applications. Both classes are manufactured from the same 3.3 borosilicate glass.\u003c\/p\u003e\n\u003ch3\u003eWhat volumetric flask sizes does LabSupplies.com carry?\u003c\/h3\u003e\n\u003cp\u003eLabSupplies.com stocks Globe Scientific volumetric flasks from 1 mL to 2000 mL in Class A and Class B calibrations. Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"1000 mL Class B Volumetric Flask Borosilicate Glass | Globe Scientific 8251000\",\"description\":\"1000 mL Narrow Mouth volumetric flask in 3.3 borosilicate glass. Meets ASTM E288. Globe Scientific 8251000.\",\"sku\":\"8251000\",\"mpn\":\"8251000\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Globe Scientific\"},\"manufacturer\":{\"@type\":\"Organization\",\"name\":\"Globe Scientific\"},\"offers\":{\"@type\":\"Offer\",\"url\":\"https:\/\/labsupplies.com\/products\/1000ml-volumetric-flask-class-b-borosilicate-glass-8251000\",\"priceCurrency\":\"USD\",\"price\":\"85.20\",\"availability\":\"https:\/\/schema.org\/InStock\",\"seller\":{\"@type\":\"Organization\",\"name\":\"LabSupplies.com\"}},\"material\":\"Borosilicate Glass 3.3\"}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is a 1000 mL volumetric flask used for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A 1000 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 1000 mL graduation mark. 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preparation, dilution, and quantitative analysis.\u003c\/p\u003e\n\u003cp\u003eFor laboratories that cannot afford measurement uncertainty, the Globe Scientific 8252000 features a diamond-etched graduation line and Class B calibration with batch calibration for traceability.\u003c\/p\u003e\n\u003cp\u003eManufactured from ASTM E438, Type I, Class A, 3.3 borosilicate glass, this flask delivers the chemical resistance and thermal stability required for precise analytical work in pharmaceutical, clinical, and research settings.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Class B Borosilicate Glass Features and Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Solution preparation, serial dilutions, calibration standards, and quantitative chemical analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e ASTM E288 — Class B calibration tolerances verified to specification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -180°C to 500°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass Type:\u003c\/strong\u003e ASTM E438, Type I, Class A, 3.3 borosilicate glass — resists thermal shock and chemical attack from acids, alkalis, and solvents\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation:\u003c\/strong\u003e Diamond-etched graduation line indicates calibrated capacity — To Contain (TC) at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e PP stopper included — prevents evaporation during solution equilibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAvailable Sizes and Pack Quantities\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eSKU\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eVolume\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eMouth Type\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003ePack Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eASTM Standard\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8252000\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e2000 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBox of 1\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e8252000\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e2000 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eNarrow Mouth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCase of 4\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eLaboratory Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePreparing standard solutions and calibration curves for spectrophotometry, HPLC, and titration analyses\u003c\/li\u003e\n\u003cli\u003ePerforming serial dilutions for microbiological assays and cell counting procedures\u003c\/li\u003e\n\u003cli\u003eMaking buffer solutions with precise pH control for electrophoresis and chromatography\u003c\/li\u003e\n\u003cli\u003eDiluting concentrated stock solutions to working concentrations in clinical and pharmaceutical laboratories\u003c\/li\u003e\n\u003cli\u003ePreparing mobile phase solutions for liquid chromatography requiring exact volumetric ratios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality Assurance and Compliance\u003c\/h2\u003e\n\u003cp\u003eGlobe Scientific manufactures Globe Glass laboratory glassware under ISO 9001:2015 certified quality systems. In-house calibration is performed in an ISO 17025 certified laboratory, and Class B volumetric flasks include batch calibration verification. Each flask undergoes automated inspection to verify graduation accuracy, wall thickness uniformity, and rim integrity.\u003c\/p\u003e\n\u003cp\u003eGlassGuard packaging uses heavy-duty, multi-layered corrugated containers tested against the rigors of small parcel shipping. This ensures that every flask arrives intact and ready for immediate use in your laboratory.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Comparison: Why Choose Globe Scientific?\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eGlobe Scientific 8252000\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eGlass Type\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eASTM E438, Type I, Class A, 3.3 Borosilicate\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBorosilicate (grade often unlisted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCalibration\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eClass B per ASTM E288\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften unlisted or unverified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eShips From\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eUSA inventory\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eAuthorized Dealer\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eYes — LabSupplies.com\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften third-party reseller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOrdering\u003c\/h2\u003e\n\u003cp\u003eAuthorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a 2000 mL volumetric flask used for?\u003c\/h3\u003e\n\u003cp\u003eA 2000 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 2000 mL graduation mark. Analytical chemists, pharmaceutical researchers, and clinical technicians rely on volumetric flasks for calibration standards, buffer preparation, and serial dilutions.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between Class A and Class B volumetric flasks?\u003c\/h3\u003e\n\u003cp\u003eClass A volumetric flasks have tighter calibration tolerances per ASTM E288 and include individual or batch calibration certificates for traceability. Class B flasks have wider tolerances and are suitable for educational use and non-critical applications. Both classes are manufactured from the same 3.3 borosilicate glass.\u003c\/p\u003e\n\u003ch3\u003eWhat volumetric flask sizes does LabSupplies.com carry?\u003c\/h3\u003e\n\u003cp\u003eLabSupplies.com stocks Globe Scientific volumetric flasks from 1 mL to 2000 mL in Class A and Class B calibrations. Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"2000 mL Class B Volumetric Flask Borosilicate Glass | Globe Scientific 8252000\",\"description\":\"2000 mL Narrow Mouth volumetric flask in 3.3 borosilicate glass. Meets ASTM E288. Globe Scientific 8252000.\",\"sku\":\"8252000\",\"mpn\":\"8252000\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Globe Scientific\"},\"manufacturer\":{\"@type\":\"Organization\",\"name\":\"Globe Scientific\"},\"offers\":{\"@type\":\"Offer\",\"url\":\"https:\/\/labsupplies.com\/products\/2000ml-volumetric-flask-class-b-borosilicate-glass-8252000\",\"priceCurrency\":\"USD\",\"price\":\"129.60\",\"availability\":\"https:\/\/schema.org\/InStock\",\"seller\":{\"@type\":\"Organization\",\"name\":\"LabSupplies.com\"}},\"material\":\"Borosilicate Glass 3.3\"}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is a 2000 mL volumetric flask used for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A 2000 mL volumetric flask is used to prepare solutions of precise concentration by dissolving a measured amount of solute and diluting to the exact 2000 mL graduation mark. 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Narrow mouth and wide mouth configurations are available, along with polypropylene options for break-resistant applications.\"}}]}\n\u003c\/script\u003e","brand":"Globe Scientific","offers":[{"title":"2000 mL - Each","offer_id":48057388269800,"sku":"8252000","price":124.6,"currency_code":"USD","in_stock":true},{"title":"2000 mL - Case of 4","offer_id":48057388302568,"sku":"8252000-CASE","price":413.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/file_84a296cb-8fd9-467c-8e63-f9852a8f05cf.jpg?v=1770920100"},{"product_id":"polypropylene-volumetric-flask-25ml-screw-cap-601430","title":"25 mL Polypropylene Volumetric Flask Screw Cap | Globe Scientific 601430","description":"\u003cp\u003eEngineered as a shatterproof alternative to glass, this \u003cstrong\u003e25 mL Polypropylene Volumetric Flask Screw Cap\u003c\/strong\u003e from Globe Scientific provides calibrated measurement in a lightweight, autoclavable format that eliminates breakage costs.\u003c\/p\u003e\n\u003cp\u003eFor teaching laboratories and production environments where glass breakage creates safety hazards and budget overruns, the Globe Scientific 601430 offers 25 mL capacity with a screw cap closure that prevents evaporation and contamination.\u003c\/p\u003e\n\u003cp\u003eManufactured from break-resistant polypropylene, this flask is autoclavable at 121°C and resistant to most acids, bases, and aqueous solutions used in routine laboratory workflows.\u003c\/p\u003e\n\u003ch2\u003ePolypropylene Volumetric Flask Screw Cap Features and Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Solution preparation, serial dilutions, and volumetric measurement in teaching labs and production environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -20°C to +135°C — autoclavable at 121°C for sterilization\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Polypropylene (PP) — autoclavable, resistant to most acids, bases, and aqueous solutions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation:\u003c\/strong\u003e Molded graduation line indicates calibrated capacity — To Contain (TC) at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e PP screw cap — leak-resistant seal for storage and transport\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBreak-Resistant:\u003c\/strong\u003e Eliminates glass breakage costs and safety hazards in high-traffic environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAvailable Sizes and Pack Quantities\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eSKU\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eVolume\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eMouth Type\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003ePack Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eASTM Standard\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e601430\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e25 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eScrew Cap\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBox of 20\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eLaboratory Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePreparing standard solutions and calibration curves for spectrophotometry, HPLC, and titration analyses\u003c\/li\u003e\n\u003cli\u003ePerforming serial dilutions for microbiological assays and cell counting procedures\u003c\/li\u003e\n\u003cli\u003eMaking buffer solutions with precise pH control for electrophoresis and chromatography\u003c\/li\u003e\n\u003cli\u003eDiluting concentrated stock solutions to working concentrations in clinical and pharmaceutical laboratories\u003c\/li\u003e\n\u003cli\u003ePreparing mobile phase solutions for liquid chromatography requiring exact volumetric ratios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality Assurance and Compliance\u003c\/h2\u003e\n\u003cp\u003eGlobe Scientific manufactures this polypropylene flask under ISO 9001:2015 certified quality systems. The break-resistant construction eliminates glass breakage costs while maintaining the volumetric accuracy required for routine laboratory measurements. Each flask is individually calibrated with a molded graduation line at 20°C.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Comparison: Why Choose Globe Scientific?\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eGlobe Scientific 601430\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eMaterial\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003ePolypropylene (PP)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003ePP or PMP (unspecified)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCalibration\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eN\/A\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften unlisted or unverified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eShips From\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eUSA inventory\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eAuthorized Dealer\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eYes — LabSupplies.com\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften third-party reseller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOrdering\u003c\/h2\u003e\n\u003cp\u003eAuthorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a 25 mL polypropylene volumetric flask used for?\u003c\/h3\u003e\n\u003cp\u003eA 25 mL polypropylene volumetric flask is used to prepare solutions of precise concentration in environments where glass breakage is a concern. Teaching laboratories, production facilities, and field research settings benefit from the break-resistant construction while maintaining calibrated accuracy.\u003c\/p\u003e\n\u003ch3\u003eCan polypropylene volumetric flasks be autoclaved?\u003c\/h3\u003e\n\u003cp\u003eYes, polypropylene volumetric flasks can be autoclaved at 121°C without permanent exceeding of calibration tolerance limits. The screw cap should be loosened during autoclaving to prevent pressure buildup.\u003c\/p\u003e\n\u003ch3\u003eWhat polypropylene flask sizes does LabSupplies.com carry?\u003c\/h3\u003e\n\u003cp\u003eLabSupplies.com stocks Globe Scientific polypropylene volumetric flasks in 25 mL, 50 mL, 100 mL, 250 mL, and 500 mL sizes with screw cap closures.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"25 mL Volumetric Flask Polypropylene | Globe Scientific 601430\",\"description\":\"25 mL Screw Cap volumetric flask in polypropylene. 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The screw cap should be loosened during autoclaving to prevent pressure buildup.\"}},{\"@type\":\"Question\",\"name\":\"What polypropylene flask sizes does LabSupplies.com carry?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"LabSupplies.com stocks Globe Scientific polypropylene volumetric flasks in 25 mL, 50 mL, 100 mL, 250 mL, and 500 mL sizes with screw cap closures.\"}}]}\n\u003c\/script\u003e","brand":"Globe Scientific","offers":[{"title":"25 mL - Case of 20","offer_id":48057388335336,"sku":"601430","price":373.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/Globe_Scientific_7e3a52a4-43e8-487e-967f-736915da670c.png?v=1782839942"},{"product_id":"polypropylene-volumetric-flask-50ml-screw-cap-601431","title":"50 mL Polypropylene Volumetric Flask Screw Cap | Globe Scientific 601431","description":"\u003cp\u003eEngineered as a shatterproof alternative to glass, this \u003cstrong\u003e50 mL Polypropylene Volumetric Flask Screw Cap\u003c\/strong\u003e from Globe Scientific provides calibrated measurement in a lightweight, autoclavable format that eliminates breakage costs.\u003c\/p\u003e\n\u003cp\u003eFor teaching laboratories and production environments where glass breakage creates safety hazards and budget overruns, the Globe Scientific 601431 offers 50 mL capacity with a screw cap closure that prevents evaporation and contamination.\u003c\/p\u003e\n\u003cp\u003eManufactured from break-resistant polypropylene, this flask is autoclavable at 121°C and resistant to most acids, bases, and aqueous solutions used in routine laboratory workflows.\u003c\/p\u003e\n\u003ch2\u003ePolypropylene Volumetric Flask Screw Cap Features and Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Solution preparation, serial dilutions, and volumetric measurement in teaching labs and production environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -20°C to +135°C — autoclavable at 121°C for sterilization\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Polypropylene (PP) — autoclavable, resistant to most acids, bases, and aqueous solutions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation:\u003c\/strong\u003e Molded graduation line indicates calibrated capacity — To Contain (TC) at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e PP screw cap — leak-resistant seal for storage and transport\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBreak-Resistant:\u003c\/strong\u003e Eliminates glass breakage costs and safety hazards in high-traffic environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAvailable Sizes and Pack Quantities\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eSKU\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eVolume\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eMouth Type\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003ePack Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eASTM Standard\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e601431\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e50 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eScrew Cap\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBox of 20\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eLaboratory Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePreparing standard solutions and calibration curves for spectrophotometry, HPLC, and titration analyses\u003c\/li\u003e\n\u003cli\u003ePerforming serial dilutions for microbiological assays and cell counting procedures\u003c\/li\u003e\n\u003cli\u003eMaking buffer solutions with precise pH control for electrophoresis and chromatography\u003c\/li\u003e\n\u003cli\u003eDiluting concentrated stock solutions to working concentrations in clinical and pharmaceutical laboratories\u003c\/li\u003e\n\u003cli\u003ePreparing mobile phase solutions for liquid chromatography requiring exact volumetric ratios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality Assurance and Compliance\u003c\/h2\u003e\n\u003cp\u003eGlobe Scientific manufactures this polypropylene flask under ISO 9001:2015 certified quality systems. The break-resistant construction eliminates glass breakage costs while maintaining the volumetric accuracy required for routine laboratory measurements. Each flask is individually calibrated with a molded graduation line at 20°C.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Comparison: Why Choose Globe Scientific?\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eGlobe Scientific 601431\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eMaterial\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003ePolypropylene (PP)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003ePP or PMP (unspecified)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCalibration\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eN\/A\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften unlisted or unverified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eShips From\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eUSA inventory\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eAuthorized Dealer\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eYes — LabSupplies.com\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften third-party reseller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOrdering\u003c\/h2\u003e\n\u003cp\u003eAuthorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a 50 mL polypropylene volumetric flask used for?\u003c\/h3\u003e\n\u003cp\u003eA 50 mL polypropylene volumetric flask is used to prepare solutions of precise concentration in environments where glass breakage is a concern. Teaching laboratories, production facilities, and field research settings benefit from the break-resistant construction while maintaining calibrated accuracy.\u003c\/p\u003e\n\u003ch3\u003eCan polypropylene volumetric flasks be autoclaved?\u003c\/h3\u003e\n\u003cp\u003eYes, polypropylene volumetric flasks can be autoclaved at 121°C without permanent exceeding of calibration tolerance limits. The screw cap should be loosened during autoclaving to prevent pressure buildup.\u003c\/p\u003e\n\u003ch3\u003eWhat polypropylene flask sizes does LabSupplies.com carry?\u003c\/h3\u003e\n\u003cp\u003eLabSupplies.com stocks Globe Scientific polypropylene volumetric flasks in 25 mL, 50 mL, 100 mL, 250 mL, and 500 mL sizes with screw cap closures.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"50 mL Volumetric Flask Polypropylene | Globe Scientific 601431\",\"description\":\"50 mL Screw Cap volumetric flask in polypropylene. 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The screw cap should be loosened during autoclaving to prevent pressure buildup.\"}},{\"@type\":\"Question\",\"name\":\"What polypropylene flask sizes does LabSupplies.com carry?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"LabSupplies.com stocks Globe Scientific polypropylene volumetric flasks in 25 mL, 50 mL, 100 mL, 250 mL, and 500 mL sizes with screw cap closures.\"}}]}\n\u003c\/script\u003e","brand":"Globe Scientific","offers":[{"title":"50 mL - Case of 20","offer_id":48057388368104,"sku":"601431","price":402.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/Globe_Scientific_91bfb9ca-570d-46ce-b57b-ecb4dd4b36b1.png?v=1782839942"},{"product_id":"polypropylene-volumetric-flask-100ml-screw-cap-601432","title":"100 mL Polypropylene Volumetric Flask Screw Cap | Globe Scientific 601432","description":"\u003cp\u003eEngineered as a shatterproof alternative to glass, this \u003cstrong\u003e100 mL Polypropylene Volumetric Flask Screw Cap\u003c\/strong\u003e from Globe Scientific provides calibrated measurement in a lightweight, autoclavable format that eliminates breakage costs.\u003c\/p\u003e\n\u003cp\u003eFor teaching laboratories and production environments where glass breakage creates safety hazards and budget overruns, the Globe Scientific 601432 offers 100 mL capacity with a screw cap closure that prevents evaporation and contamination.\u003c\/p\u003e\n\u003cp\u003eManufactured from break-resistant polypropylene, this flask is autoclavable at 121°C and resistant to most acids, bases, and aqueous solutions used in routine laboratory workflows.\u003c\/p\u003e\n\u003ch2\u003ePolypropylene Volumetric Flask Screw Cap Features and Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Solution preparation, serial dilutions, and volumetric measurement in teaching labs and production environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -20°C to +135°C — autoclavable at 121°C for sterilization\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Polypropylene (PP) — autoclavable, resistant to most acids, bases, and aqueous solutions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation:\u003c\/strong\u003e Molded graduation line indicates calibrated capacity — To Contain (TC) at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e PP screw cap — leak-resistant seal for storage and transport\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBreak-Resistant:\u003c\/strong\u003e Eliminates glass breakage costs and safety hazards in high-traffic environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAvailable Sizes and Pack Quantities\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eSKU\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eVolume\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eMouth Type\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003ePack Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eASTM Standard\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e601432\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e100 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eScrew Cap\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBox of 20\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eLaboratory Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePreparing standard solutions and calibration curves for spectrophotometry, HPLC, and titration analyses\u003c\/li\u003e\n\u003cli\u003ePerforming serial dilutions for microbiological assays and cell counting procedures\u003c\/li\u003e\n\u003cli\u003eMaking buffer solutions with precise pH control for electrophoresis and chromatography\u003c\/li\u003e\n\u003cli\u003eDiluting concentrated stock solutions to working concentrations in clinical and pharmaceutical laboratories\u003c\/li\u003e\n\u003cli\u003ePreparing mobile phase solutions for liquid chromatography requiring exact volumetric ratios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality Assurance and Compliance\u003c\/h2\u003e\n\u003cp\u003eGlobe Scientific manufactures this polypropylene flask under ISO 9001:2015 certified quality systems. The break-resistant construction eliminates glass breakage costs while maintaining the volumetric accuracy required for routine laboratory measurements. Each flask is individually calibrated with a molded graduation line at 20°C.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Comparison: Why Choose Globe Scientific?\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eGlobe Scientific 601432\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eMaterial\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003ePolypropylene (PP)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003ePP or PMP (unspecified)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCalibration\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eN\/A\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften unlisted or unverified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eShips From\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eUSA inventory\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eAuthorized Dealer\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eYes — LabSupplies.com\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften third-party reseller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOrdering\u003c\/h2\u003e\n\u003cp\u003eAuthorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a 100 mL polypropylene volumetric flask used for?\u003c\/h3\u003e\n\u003cp\u003eA 100 mL polypropylene volumetric flask is used to prepare solutions of precise concentration in environments where glass breakage is a concern. Teaching laboratories, production facilities, and field research settings benefit from the break-resistant construction while maintaining calibrated accuracy.\u003c\/p\u003e\n\u003ch3\u003eCan polypropylene volumetric flasks be autoclaved?\u003c\/h3\u003e\n\u003cp\u003eYes, polypropylene volumetric flasks can be autoclaved at 121°C without permanent exceeding of calibration tolerance limits. The screw cap should be loosened during autoclaving to prevent pressure buildup.\u003c\/p\u003e\n\u003ch3\u003eWhat polypropylene flask sizes does LabSupplies.com carry?\u003c\/h3\u003e\n\u003cp\u003eLabSupplies.com stocks Globe Scientific polypropylene volumetric flasks in 25 mL, 50 mL, 100 mL, 250 mL, and 500 mL sizes with screw cap closures.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"100 mL Volumetric Flask Polypropylene | Globe Scientific 601432\",\"description\":\"100 mL Screw Cap volumetric flask in polypropylene. 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Volumetric Flask Screw Cap\u003c\/strong\u003e from Globe Scientific provides calibrated measurement in a lightweight, autoclavable format that eliminates breakage costs.\u003c\/p\u003e\n\u003cp\u003eFor teaching laboratories and production environments where glass breakage creates safety hazards and budget overruns, the Globe Scientific 601433 offers 250 mL capacity with a screw cap closure that prevents evaporation and contamination.\u003c\/p\u003e\n\u003cp\u003eManufactured from break-resistant polypropylene, this flask is autoclavable at 121°C and resistant to most acids, bases, and aqueous solutions used in routine laboratory workflows.\u003c\/p\u003e\n\u003ch2\u003ePolypropylene Volumetric Flask Screw Cap Features and Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Solution preparation, serial dilutions, and volumetric measurement in teaching labs and production environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -20°C to +135°C — autoclavable at 121°C for sterilization\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Polypropylene (PP) — autoclavable, resistant to most acids, bases, and aqueous solutions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation:\u003c\/strong\u003e Molded graduation line indicates calibrated capacity — To Contain (TC) at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e PP screw cap — leak-resistant seal for storage and transport\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBreak-Resistant:\u003c\/strong\u003e Eliminates glass breakage costs and safety hazards in high-traffic environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAvailable Sizes and Pack Quantities\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eSKU\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eVolume\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eMouth Type\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003ePack Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eASTM Standard\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e601433\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e250 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eScrew Cap\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBox of 10\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eLaboratory Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePreparing standard solutions and calibration curves for spectrophotometry, HPLC, and titration analyses\u003c\/li\u003e\n\u003cli\u003ePerforming serial dilutions for microbiological assays and cell counting procedures\u003c\/li\u003e\n\u003cli\u003eMaking buffer solutions with precise pH control for electrophoresis and chromatography\u003c\/li\u003e\n\u003cli\u003eDiluting concentrated stock solutions to working concentrations in clinical and pharmaceutical laboratories\u003c\/li\u003e\n\u003cli\u003ePreparing mobile phase solutions for liquid chromatography requiring exact volumetric ratios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality Assurance and Compliance\u003c\/h2\u003e\n\u003cp\u003eGlobe Scientific manufactures this polypropylene flask under ISO 9001:2015 certified quality systems. The break-resistant construction eliminates glass breakage costs while maintaining the volumetric accuracy required for routine laboratory measurements. Each flask is individually calibrated with a molded graduation line at 20°C.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Comparison: Why Choose Globe Scientific?\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eGlobe Scientific 601433\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eMaterial\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003ePolypropylene (PP)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003ePP or PMP (unspecified)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCalibration\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eN\/A\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften unlisted or unverified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eShips From\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eUSA inventory\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eAuthorized Dealer\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eYes — LabSupplies.com\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften third-party reseller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOrdering\u003c\/h2\u003e\n\u003cp\u003eAuthorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a 250 mL polypropylene volumetric flask used for?\u003c\/h3\u003e\n\u003cp\u003eA 250 mL polypropylene volumetric flask is used to prepare solutions of precise concentration in environments where glass breakage is a concern. Teaching laboratories, production facilities, and field research settings benefit from the break-resistant construction while maintaining calibrated accuracy.\u003c\/p\u003e\n\u003ch3\u003eCan polypropylene volumetric flasks be autoclaved?\u003c\/h3\u003e\n\u003cp\u003eYes, polypropylene volumetric flasks can be autoclaved at 121°C without permanent exceeding of calibration tolerance limits. The screw cap should be loosened during autoclaving to prevent pressure buildup.\u003c\/p\u003e\n\u003ch3\u003eWhat polypropylene flask sizes does LabSupplies.com carry?\u003c\/h3\u003e\n\u003cp\u003eLabSupplies.com stocks Globe Scientific polypropylene volumetric flasks in 25 mL, 50 mL, 100 mL, 250 mL, and 500 mL sizes with screw cap closures.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"250 mL Volumetric Flask Polypropylene | Globe Scientific 601433\",\"description\":\"250 mL Screw Cap volumetric flask in polypropylene. Globe Scientific 601433.\",\"sku\":\"601433\",\"mpn\":\"601433\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Globe Scientific\"},\"manufacturer\":{\"@type\":\"Organization\",\"name\":\"Globe Scientific\"},\"offers\":{\"@type\":\"Offer\",\"url\":\"https:\/\/labsupplies.com\/products\/polypropylene-volumetric-flask-250ml-screw-cap-601433\",\"priceCurrency\":\"USD\",\"price\":\"269.20\",\"availability\":\"https:\/\/schema.org\/InStock\",\"seller\":{\"@type\":\"Organization\",\"name\":\"LabSupplies.com\"}},\"material\":\"Polypropylene\"}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is a 250 mL polypropylene volumetric flask used for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A 250 mL polypropylene volumetric flask is used to prepare solutions of precise concentration in environments where glass breakage is a concern. 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The screw cap should be loosened during autoclaving to prevent pressure buildup.\"}},{\"@type\":\"Question\",\"name\":\"What polypropylene flask sizes does LabSupplies.com carry?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"LabSupplies.com stocks Globe Scientific polypropylene volumetric flasks in 25 mL, 50 mL, 100 mL, 250 mL, and 500 mL sizes with screw cap closures.\"}}]}\n\u003c\/script\u003e","brand":"Globe Scientific","offers":[{"title":"250 mL - Case of 10","offer_id":48057388466408,"sku":"601433","price":264.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/Globe_Scientific_d64c23f3-c2b9-4b0e-a9d5-fd12795b949f.png?v=1782839943"},{"product_id":"polypropylene-volumetric-flask-500ml-screw-cap-601434","title":"500 mL Polypropylene Volumetric Flask Screw Cap | Globe Scientific 601434","description":"\u003cp\u003eEngineered as a shatterproof alternative to glass, this \u003cstrong\u003e500 mL Polypropylene Volumetric Flask Screw Cap\u003c\/strong\u003e from Globe Scientific provides calibrated measurement in a lightweight, autoclavable format that eliminates breakage costs.\u003c\/p\u003e\n\u003cp\u003eFor teaching laboratories and production environments where glass breakage creates safety hazards and budget overruns, the Globe Scientific 601434 offers 500 mL capacity with a screw cap closure that prevents evaporation and contamination.\u003c\/p\u003e\n\u003cp\u003eManufactured from break-resistant polypropylene, this flask is autoclavable at 121°C and resistant to most acids, bases, and aqueous solutions used in routine laboratory workflows.\u003c\/p\u003e\n\u003ch2\u003ePolypropylene Volumetric Flask Screw Cap Features and Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Solution preparation, serial dilutions, and volumetric measurement in teaching labs and production environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -20°C to +135°C — autoclavable at 121°C for sterilization\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Polypropylene (PP) — autoclavable, resistant to most acids, bases, and aqueous solutions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation:\u003c\/strong\u003e Molded graduation line indicates calibrated capacity — To Contain (TC) at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e PP screw cap — leak-resistant seal for storage and transport\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBreak-Resistant:\u003c\/strong\u003e Eliminates glass breakage costs and safety hazards in high-traffic environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAvailable Sizes and Pack Quantities\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eSKU\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eVolume\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eMouth Type\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003ePack Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eASTM Standard\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e601434\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e500 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eScrew Cap\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBox of 10\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eLaboratory Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePreparing standard solutions and calibration curves for spectrophotometry, HPLC, and titration analyses\u003c\/li\u003e\n\u003cli\u003ePerforming serial dilutions for microbiological assays and cell counting procedures\u003c\/li\u003e\n\u003cli\u003eMaking buffer solutions with precise pH control for electrophoresis and chromatography\u003c\/li\u003e\n\u003cli\u003eDiluting concentrated stock solutions to working concentrations in clinical and pharmaceutical laboratories\u003c\/li\u003e\n\u003cli\u003ePreparing mobile phase solutions for liquid chromatography requiring exact volumetric ratios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality Assurance and Compliance\u003c\/h2\u003e\n\u003cp\u003eGlobe Scientific manufactures this polypropylene flask under ISO 9001:2015 certified quality systems. The break-resistant construction eliminates glass breakage costs while maintaining the volumetric accuracy required for routine laboratory measurements. Each flask is individually calibrated with a molded graduation line at 20°C.\u003c\/p\u003e\n\u003ch2\u003eVolumetric Flask Comparison: Why Choose Globe Scientific?\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eGlobe Scientific 601434\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eMaterial\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003ePolypropylene (PP)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003ePP or PMP (unspecified)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCalibration\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eN\/A\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften unlisted or unverified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eShips From\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eUSA inventory\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eAuthorized Dealer\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eYes — LabSupplies.com\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften third-party reseller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOrdering\u003c\/h2\u003e\n\u003cp\u003eAuthorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a 500 mL polypropylene volumetric flask used for?\u003c\/h3\u003e\n\u003cp\u003eA 500 mL polypropylene volumetric flask is used to prepare solutions of precise concentration in environments where glass breakage is a concern. Teaching laboratories, production facilities, and field research settings benefit from the break-resistant construction while maintaining calibrated accuracy.\u003c\/p\u003e\n\u003ch3\u003eCan polypropylene volumetric flasks be autoclaved?\u003c\/h3\u003e\n\u003cp\u003eYes, polypropylene volumetric flasks can be autoclaved at 121°C without permanent exceeding of calibration tolerance limits. The screw cap should be loosened during autoclaving to prevent pressure buildup.\u003c\/p\u003e\n\u003ch3\u003eWhat polypropylene flask sizes does LabSupplies.com carry?\u003c\/h3\u003e\n\u003cp\u003eLabSupplies.com stocks Globe Scientific polypropylene volumetric flasks in 25 mL, 50 mL, 100 mL, 250 mL, and 500 mL sizes with screw cap closures.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"500 mL Volumetric Flask Polypropylene | Globe Scientific 601434\",\"description\":\"500 mL Screw Cap volumetric flask in polypropylene. Globe Scientific 601434.\",\"sku\":\"601434\",\"mpn\":\"601434\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Globe Scientific\"},\"manufacturer\":{\"@type\":\"Organization\",\"name\":\"Globe Scientific\"},\"offers\":{\"@type\":\"Offer\",\"url\":\"https:\/\/labsupplies.com\/products\/polypropylene-volumetric-flask-500ml-screw-cap-601434\",\"priceCurrency\":\"USD\",\"price\":\"307.50\",\"availability\":\"https:\/\/schema.org\/InStock\",\"seller\":{\"@type\":\"Organization\",\"name\":\"LabSupplies.com\"}},\"material\":\"Polypropylene\"}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is a 500 mL polypropylene volumetric flask used for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A 500 mL polypropylene volumetric flask is used to prepare solutions of precise concentration in environments where glass breakage is a concern. Teaching laboratories, production facilities, and field research settings benefit from the break-resistant construction while maintaining calibrated accuracy.\"}},{\"@type\":\"Question\",\"name\":\"Can polypropylene volumetric flasks be autoclaved?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, polypropylene volumetric flasks can be autoclaved at 121°C without permanent exceeding of calibration tolerance limits. The screw cap should be loosened during autoclaving to prevent pressure buildup.\"}},{\"@type\":\"Question\",\"name\":\"What polypropylene flask sizes does LabSupplies.com carry?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"LabSupplies.com stocks Globe Scientific polypropylene volumetric flasks in 25 mL, 50 mL, 100 mL, 250 mL, and 500 mL sizes with screw cap closures.\"}}]}\n\u003c\/script\u003e","brand":"Globe Scientific","offers":[{"title":"500 mL - Case of 10","offer_id":48057388597480,"sku":"601434","price":302.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/Globe_Scientific_155ea88e-b8fa-4bbf-8547-8881df3f892b.png?v=1782839944"},{"product_id":"heathrow-class-a-volumetric-flasks","title":"Class A Volumetric Flasks - Glass Stopper - Heathrow Scientific","description":"\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eFormulate critical analytical standards and precise chemical dilutions with Heathrow Scientific Class A Volumetric Flasks. For advanced quantitative analysis, high-performance liquid chromatography (HPLC), and trace metal testing, researchers demand absolute volumetric accuracy. These premium borosilicate glass flasks are rigorously calibrated to meet strict Class A tolerances, providing the exact precision required to prepare reliable standard solutions, serial dilutions, and exact-concentration reagents.\u003cbr\u003e\u003cbr\u003eThe classic flat-bottom geometry offers excellent stability, while the elongated, narrow neck allows the technician to read the solitary calibration mark with precision, virtually eliminating measurement errors. Each flask is paired with a precision-ground solid glass stopper that creates an airtight, hermetic seal. This completely prevents the evaporation of highly volatile solvents and protects sensitive internal solutions from ambient atmospheric contamination. Currently available in highly specialized 1 mL and 2 mL micro-capacities for ultra-fine analytical compounding.\u003c\/p\u003e\n\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eFeatures and Benefits\u003c\/h2\u003e\n\u003cul class=\"marker:text-quiet list-disc\"\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eMade of premium borosilicate glass with a low coefficient of expansion\u003c\/p\u003e\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eDesigned “to contain” with a temperature of calibration at 68°F (20°C)\u003c\/p\u003e\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eThe graduation line is sharply defined and of uniform width\u003c\/p\u003e\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eEach flask has a large marking square and includes a glass stopper\u003c\/p\u003e\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eFeatures a hexagonal base for added stability\u003c\/p\u003e\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eMeets ASTM E-288 Class A specifications \u0026amp; USP standards for glassware\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eSpecifications\u003c\/h2\u003e\n\u003cul class=\"marker:text-quiet list-disc\"\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eAutoclavable: True\u003c\/p\u003e\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eCapacity: 1 mL\u003c\/p\u003e\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eColor: Clear\u003c\/p\u003e\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eDimensions (L x W): 10 x 79 mm\u003c\/p\u003e\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eIncludes: Glass Stopper #9\u003c\/p\u003e\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eMaterial: Borosilicate Glass\u003c\/p\u003e\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eQuantity: Pack of 6\u003c\/p\u003e\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eVolume: 1 mL\u003c\/p\u003e\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eWarranty: 1 Year\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eOrdering\u003c\/h2\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eAuthorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.\u003c\/p\u003e\n\u003ch3\u003eCatalog Numbers (MPN)\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eCatalog \/ Item No. (MPN)\u003c\/th\u003e\n\u003cth\u003eConfiguration\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2306A-1\u003c\/td\u003e\n\u003ctd\u003e1 mL, Pack of 6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2306A-2\u003c\/td\u003e\n\u003ctd\u003e2 mL, Pack of 6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Heathrow Scientific","offers":[{"title":"1 mL \/ Pack of 6","offer_id":48078039187688,"sku":"2306A-1-MERGED","price":109.0,"currency_code":"USD","in_stock":true},{"title":"2 mL \/ Pack of 6","offer_id":48078039220456,"sku":"2306A-2-MERGED","price":114.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/unnamed_67845c1d-4e7d-4624-b175-0cc2aea72067.jpg?v=1771849575"},{"product_id":"sibata-volumetric-flask-class-a-glass-stopper","title":"SIBATA Class A Volumetric Flask with Glass Stopper - 2306A Series","description":"\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eMost lab errors in quantitative work trace back to the same root cause: a volumetric flask that was not calibrated to Class A tolerance, or one whose graduation line has shifted from thermal cycling and repeated cleaning. The SIBATA 2306A Series Volumetric Flask is certified to ASTM E-288 Class A specifications — the highest accuracy class for laboratory volumetric glassware — and meets USP standards for pharmaceutical-grade measurement. Each flask is machine-blown from premium borosilicate glass with a low coefficient of thermal expansion, fitted with a standard taper glass stopper that provides a leakproof, solvent-resistant seal, and calibrated \"to contain\" at exactly 20°C (68°F). The sharply defined, uniform-width graduation line leaves no ambiguity at the meniscus. If your analytical work demands traceability and accuracy at the volumetric flask stage, this is the series to standardize on across your 5mL through 2000mL size needs.\u003c\/p\u003e\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eFeatures and Benefits\u003c\/h2\u003e\u003cul class=\"marker:text-quiet list-disc\"\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eASTM E-288 Class A certified — the highest volumetric accuracy class:\u003c\/strong\u003e Class A certification means each flask is individually inspected to tolerance limits half as tight as Class B. For a 100mL flask, Class A tolerance is ±0.10mL. This level of accuracy is required for preparing primary standard solutions, HPLC mobile phases, and pharmaceutical assays where the concentration of the prepared solution directly affects downstream results.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eMeets USP standards for pharmaceutical glassware:\u003c\/strong\u003e The 2306A Series complies with United States Pharmacopeia glassware specifications, making it suitable for use in pharmaceutical QC laboratories, compounding environments, and any regulated setting where USP compliance is required or audited.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eStandard taper glass stopper included — leakproof and solvent-compatible:\u003c\/strong\u003e Every flask ships with a matching standard taper glass stopper. Glass-on-glass ground joints are chemically inert and provide a reliable seal against evaporation and solvent vapor loss — critical when working with volatile organic solvents or hygroscopic reagents that would degrade with a rubber or plastic closure.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eMachine-blown borosilicate body with heavy-beaded neck:\u003c\/strong\u003e The machine-blown construction produces consistent wall thickness and flask geometry across the entire production run — critical for Class A calibration reliability. The heavy-beaded, heavy-tubing neck is engineered specifically to accept standard taper stoppers with the mechanical strength to withstand repeated insertion and removal without neck deformation.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eCalibrated \"to contain\" (TC) at 20°C:\u003c\/strong\u003e The 2306A Series is calibrated TC — meaning the stated volume is the amount of liquid contained in the flask when filled to the graduation mark at 20°C. This is the standard calibration method for preparing solutions of known concentration. The calibration temperature is permanently marked on each flask alongside the volume designation.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eSharply defined graduation line with large marking square:\u003c\/strong\u003e The single volumetric graduation mark is precisely fired at uniform width — there is no ambiguity about where the meniscus should sit. The large white marking square provides ample space for writing solution identity, concentration, preparation date, and analyst initials with a lab marker.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eFull size range from 5mL to 2000mL in one certified series:\u003c\/strong\u003e Ten sizes in a single product family with identical quality certification allow you to standardize your glassware purchasing and QC documentation across every volumetric preparation volume your lab requires — from micro-scale standard preparation at 5mL to large-batch solution making at 2000mL.\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eProperty\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU Series\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2306A Series (2306A-5, 2306A-10, 2306A-25, 2306A-50, 2306A-100, 2306A-200, 2306A-250, 2306A-500, 2306A-1000, 2306A-2000)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSIBATA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVolumetric Flask, Class A, Glass Stopper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCalibration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTo Contain (TC) at 20°C (68°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAccuracy Standard\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eASTM E-288 Class A; USP compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBorosilicate Glass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStopper Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStandard taper glass stopper (included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eClear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTaiwan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAutoclavable\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e5 mL\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDims: 21 × 72 mm | Pack of 6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e10 mL\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDims: 26 × 96 mm | Pack of 6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e25 mL\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDims: 37 × 123 mm | Pack of 6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e50 mL\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDims: 49 × 152 mm | Pack of 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e100 mL\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDims: 58 × 181 mm | Pack of 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e200 mL\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDims: 74 × 220 mm | Pack of 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e250 mL\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDims: 78 × 239 mm | Pack of 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e500 mL\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDims: 96 × 279 mm | Pack of 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e1000 mL\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDims: 122 × 327 mm | Pack of 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e2000 mL\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDims: 157 × 396 mm | Pack of 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVariety Kit (202GK-004)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 each of 10mL, 25mL, 50mL, 100mL with glass stoppers | Set of 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHTS Code\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7017.20.0000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e41121803\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 Year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eLaboratory Applications\u003c\/h2\u003e\u003cul class=\"marker:text-quiet list-disc\"\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003ePrimary standard solution preparation:\u003c\/strong\u003e The most demanding use case for a volumetric flask — preparing a solution of precisely known concentration from a weighed primary standard. Class A certification ensures the volume delivered is within the tight tolerance required for the prepared standard to be used as a calibration reference without a correction factor.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eHPLC and UV-Vis mobile phase and standard preparation:\u003c\/strong\u003e Chromatographic methods require mobile phases and calibration standards prepared at precisely controlled concentrations. The 100mL, 250mL, and 500mL sizes are the most commonly used for HPLC standard preparation, while larger sizes serve mobile phase preparation where concentration accuracy directly affects peak area reproducibility.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003ePharmaceutical assay and compounding:\u003c\/strong\u003e USP compliance makes the 2306A Series suitable for use in licensed compounding pharmacies and pharmaceutical QC labs where glassware certification records may be required during regulatory inspections. The glass stopper eliminates any concern about plasticizer leaching from plastic closures into drug solutions.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eEnvironmental and water chemistry analysis:\u003c\/strong\u003e Preparing calibration standards for ICP, AAS, ion chromatography, and wet chemistry methods requires volumetric precision at every dilution step. The 50mL and 100mL sizes are the standard workhorses for serial dilution and standard preparation in environmental testing laboratories.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eTeaching and undergraduate analytical chemistry:\u003c\/strong\u003e The pack quantities (6, 4, or 2 per pack) make the 2306A Series practical for equipping student benches with Class A glassware without overspending. Students performing gravimetric and titrimetric analyses develop proper volumetric technique on the same class of flask used in professional analytical labs.\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eWhat does Class A mean for a volumetric flask, and why does it matter?\u003cbr\u003e\u003c\/strong\u003eClass A is the highest accuracy grade defined by ASTM E-288 for volumetric glassware. Class A flasks are individually calibrated to tolerance limits that are half as tight as Class B. For example, a 100mL Class A flask has a tolerance of ±0.10mL, while a Class B flask allows ±0.20mL. For preparing calibration standards, primary solutions, or any solution where concentration accuracy is directly audited, Class A is the required standard. Class B is acceptable for general-purpose dilutions where tight accuracy is less critical.\u003c\/p\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eWhich size should I choose — and what pack quantities are available?\u003cbr\u003e\u003c\/strong\u003eSize selection depends on the volume of solution you prepare most frequently. The 100mL is the most common general-purpose size, covering the majority of standard preparation workflows. The 25mL and 50mL sizes are preferred for micro-scale standards and concentrated stock solutions. The 250mL and 500mL sizes serve HPLC mobile phase preparation and large-batch buffer work. The 1000mL and 2000mL sizes are used when preparing large volumes of standard solution that will be subdivided or diluted further. Pack quantities: 5mL, 10mL, 25mL come in packs of 6; 50mL, 100mL, 200mL, 250mL in packs of 4; 500mL, 1000mL, 2000mL in packs of 2. Each flask includes a matching glass stopper. If you need one each of the four most common sizes (10, 25, 50, 100mL) for bench setup or evaluation, the Variety Kit option (SKU 202GK-004) is available as a single dropdown selection on this page.\u003c\/p\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eWhat is \"to contain\" (TC) calibration and how does it differ from \"to deliver\" (TD)?\u003cbr\u003e\u003c\/strong\u003eA flask calibrated \"to contain\" (TC) holds exactly the stated volume when filled to the graduation mark at 20°C — meaning the volume is contained within the flask. A pipette calibrated \"to deliver\" (TD) releases the stated volume when drained. Volumetric flasks are always TC instruments: you fill to the mark, and the solution inside is the correct volume. Never drain a volumetric flask and expect the drained volume to be accurate — use a volumetric pipette for delivery.\u003c\/p\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eCan the glass stopper be used with all solvents?\u003cbr\u003e\u003c\/strong\u003eThe standard taper glass stopper is compatible with virtually all laboratory solvents including concentrated acids (excluding HF), strong bases, ketones, alcohols, and chlorinated solvents. The only situation requiring caution is prolonged contact with highly concentrated sodium hydroxide or potassium hydroxide, which can etch glass surfaces and cause the stopper to seize in the neck over time. For strongly alkaline solutions stored long-term, substitute a PTFE or polyethylene stopper of the appropriate taper size.\u003c\/p\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eAre these flasks compatible with SIBATA amber volumetric flasks (2307A Series) for light-sensitive work?\u003cbr\u003e\u003c\/strong\u003eYes. The 2307A Amber Volumetric Flask series uses the same Class A calibration standard, the same borosilicate glass construction, and compatible glass stoppers. If your analytical method requires protection from UV degradation — common with phenolphthalein indicators, photosensitive drug compounds, or certain metal chelates — the 2307A Series is the appropriate choice for the same volume sizes. Both series are available on LabSupplies.com.\u003c\/p\u003e\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eQuality Assurance\u003c\/h2\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eSIBATA Scientific Technology has manufactured precision analytical glassware since 1932. The 2306A Series Volumetric Flasks are certified to ASTM E-288 Class A specifications and comply with USP glassware standards. Each flask undergoes individual calibration verification before shipment. SIBATA's ISO 9001-certified quality management system governs production and inspection across all volumetric glassware series. Every flask is backed by a 1-year manufacturer warranty.\u003c\/p\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eAs an authorized dealer, we ship directly from USA inventory.\u003c\/p\u003e","brand":"SIBATA","offers":[{"title":"5 mL — Pack of 6","offer_id":48092702441704,"sku":"2306A-5","price":102.0,"currency_code":"USD","in_stock":true},{"title":"10 mL — Pack of 6","offer_id":48092702474472,"sku":"2306A-10","price":102.0,"currency_code":"USD","in_stock":true},{"title":"25 mL — Pack of 6","offer_id":48092702507240,"sku":"2306A-25","price":109.0,"currency_code":"USD","in_stock":true},{"title":"50 mL — Pack of 4","offer_id":48092702540008,"sku":"2306A-50","price":79.0,"currency_code":"USD","in_stock":true},{"title":"100 mL — Pack of 4","offer_id":48092702572776,"sku":"2306A-100","price":82.0,"currency_code":"USD","in_stock":true},{"title":"200 mL — Pack of 4","offer_id":48092702605544,"sku":"2306A-200","price":111.0,"currency_code":"USD","in_stock":true},{"title":"250 mL — Pack of 4","offer_id":48092702638312,"sku":"2306A-250","price":125.0,"currency_code":"USD","in_stock":true},{"title":"500 mL — Pack of 2","offer_id":48092702671080,"sku":"2306A-500","price":72.0,"currency_code":"USD","in_stock":true},{"title":"1000 mL — Pack of 2","offer_id":48092702703848,"sku":"2306A-1000","price":99.0,"currency_code":"USD","in_stock":true},{"title":"2000 mL — Pack of 2","offer_id":48092702736616,"sku":"2306A-2000","price":171.0,"currency_code":"USD","in_stock":true},{"title":"Variety Kit — Set of 4 (10, 25, 50, 100 mL)","offer_id":48092722364648,"sku":"202GK-004","price":58.0,"currency_code":"USD","in_stock":true},{"title":"1 mL — Pack of 6","offer_id":48778393485544,"sku":"2306A-1","price":109.0,"currency_code":"USD","in_stock":true},{"title":"2 mL — Pack of 6","offer_id":48778393518312,"sku":"2306A-2","price":114.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/unnamed_606cee28-c3d8-4c55-8913-ca3d391764e0.jpg?v=1772317452"},{"product_id":"sibata-volumetric-flask-class-a-snap-cap","title":"SIBATA Class A Volumetric Flask with Snap Cap - 2303A Series","description":"\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eA ground-glass stopper is the gold standard for solvent compatibility — but in a high-throughput teaching lab or a production QC environment, fumbling with stoppers that seize, chip, or go missing is a real operational cost. The SIBATA 2303A Series Volumetric Flask addresses this with a snap-cap closure engineered for fast, secure, one-handed operation while preserving the full Class A volumetric accuracy that analytical work demands. The borosilicate glass body and neck carry identical ASTM E-288 Class A certification and USP compliance as the glass-stopper 2306A Series — the only difference is the closure system. You get ±0.10mL accuracy at 100mL, machine-blown uniform wall thickness, a sharply defined graduation line, and \"to contain\" calibration at exactly 20°C. The snap cap adds drop protection by cushioning the neck from bench contact, and eliminates the stopper-matching problem when running multiple flask sizes simultaneously.\u003c\/p\u003e\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eFeatures and Benefits\u003c\/h2\u003e\u003cul class=\"marker:text-quiet list-disc\"\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eFull ASTM E-288 Class A certification — same accuracy as glass-stopper series:\u003c\/strong\u003e The snap-cap closure does not compromise volumetric accuracy. The 2303A Series carries identical Class A certification to the 2306A glass-stopper series, with the same tolerance values: ±0.05mL at 10mL, ±0.06mL at 25mL, ±0.10mL at 100mL, and ±0.40mL at 1000mL. Suitable for preparing primary standards, calibration solutions, and any quantitative analytical preparation requiring traceable volumetric accuracy.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eSnap cap included — fast, one-handed closure with drop protection:\u003c\/strong\u003e Each flask ships with a matching snap cap that secures with a single press and releases with a single lift. In high-volume settings — student benches, QC labs running many preparations simultaneously, or any workflow where speed of closure matters — this eliminates the per-flask overhead of threading and seating a ground-glass stopper. The snap cap also cushions the flask neck during incidental contact with bench surfaces, reducing the most common chipping failure point.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eMachine-blown borosilicate body with heavy-beaded, heavy-tubing neck:\u003c\/strong\u003e The flask body is machine-blown from Type 1 borosilicate glass with a low coefficient of thermal expansion, producing consistent wall thickness across every unit in the production run. The heavy-beaded neck profile is specifically designed for snap-cap engagement — providing the dimensional precision required for a secure, repeatable snap fit over the full service life of the flask.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eUSP-compliant for pharmaceutical and compounding environments — snap-cap solvent limits apply:\u003c\/strong\u003e Like all SIBATA Class A volumetric flasks, the 2303A Series complies with United States Pharmacopeia glassware specifications. This makes it suitable for pharmaceutical QC, compounding, and regulated laboratory environments where USP compliance is audited — provided that the snap-cap material is compatible with the solution being prepared. For solutions requiring a fully inert closure (aggressive organic solvents, long-term storage), the glass-stopper 2306A Series is recommended instead.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eCalibrated \"to contain\" (TC) at 20°C with sharply defined graduation line:\u003c\/strong\u003e The single volumetric graduation mark is fired at uniform width into the glass neck — permanently visible and resistant to cleaning agents, solvents, and autoclaving. Calibration is TC at 20°C, marked on every flask. The large white marking square gives space for sample identification, concentration, date, and analyst initials.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eAutoclavable across all sizes:\u003c\/strong\u003e All eight sizes withstand standard autoclave conditions at 121°C, 15 psi, for 20-minute cycles. Remove the snap cap before autoclaving to prevent pressure buildup. This allows the flask body to be sterilized before use in biological or sterility-critical preparations, then capped after sterilization for storage of the prepared solution.\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eProperty\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU Series\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2303A Series (2303A-10, 2303A-25, 2303A-50, 2303A-100, 2303A-200, 2303A-250, 2303A-500, 2303A-1000)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSIBATA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVolumetric Flask, Class A, Snap Cap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCalibration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTo Contain (TC) at 20°C (68°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAccuracy Standard\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eASTM E-288 Class A; USP compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBorosilicate Glass (Type 1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eClosure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSnap cap (included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eClear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTaiwan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAutoclavable\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes (remove cap before autoclaving)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e10 mL\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDims: 26 × 85 mm | Pack of 6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e25 mL\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDims: 37 × 110 mm | Pack of 6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e50 mL\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDims: 49 × 136 mm | Pack of 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e100 mL\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDims: 58 × 164 mm | Pack of 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e200 mL\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDims: 74 × 205 mm | Pack of 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e250 mL\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDims: 78 × 225 mm | Pack of 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e500 mL\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDims: 96 × 260 mm | Pack of 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e1000 mL\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDims: 122 × 300 mm | Pack of 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHTS Code\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7017.20.0000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e41121803\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 Year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eLaboratory Applications\u003c\/h2\u003e\u003cul class=\"marker:text-quiet list-disc\"\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eHigh-throughput analytical and QC labs:\u003c\/strong\u003e In environments where technicians prepare dozens of standards or solutions per shift, the snap-cap design reduces the per-flask handling time versus ground-glass stoppers. The snap cap stays with the flask by design — no searching for the right-size stopper when a bench has multiple flask sizes in use simultaneously. Class A accuracy is maintained throughout.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eTeaching labs — snap cap eliminates stopper-mismatch errors at student benches:\u003c\/strong\u003e The snap-cap closure is more robust against mishandling than a ground-glass stopper — student labs benefit from the drop cushioning and the lower risk of students using mismatched stoppers. Pack quantities of 6 (small sizes) and 4 (mid sizes) allow practical equipping of student benches at Class A accuracy without premium glass-stopper pricing.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eStandard solution preparation for aqueous and dilute-solvent applications:\u003c\/strong\u003e For preparing aqueous buffer solutions, water-based calibration standards, and dilute acid or base standards, the snap cap provides a practical, reliable seal. For concentrated organic solvents or long-term solvent storage, the glass-stopper 2306A Series is the appropriate choice — the snap-cap material has finite solvent exposure limits.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003ePharmaceutical compounding and QC at regulated volume sizes:\u003c\/strong\u003e USP compliance makes the 2303A Series suitable for licensed compounding pharmacies and pharmaceutical QC workflows preparing aqueous or compatible solutions. The 100mL and 250mL sizes are the most commonly required sizes for compounding standard preparations.\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eIs the snap cap as accurate as a ground-glass stopper for volumetric work?\u003cbr\u003e\u003c\/strong\u003eYes — the volumetric accuracy of the flask is determined by the glass body and the graduation line, not the closure. Both the 2303A (snap cap) and 2306A (glass stopper) Series carry identical ASTM E-288 Class A certification. The closure choice affects solvent compatibility and handling convenience, not the volume contained when filled to the graduation mark at 20°C.\u003c\/p\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eWhen should I choose the snap cap series vs. the glass stopper series?\u003cbr\u003e\u003c\/strong\u003eChoose the snap cap (2303A) for high-throughput workflows, teaching labs, aqueous or dilute solution work, and environments where faster closure and drop protection outweigh the need for full solvent inertness. Choose the glass stopper (2306A) when working with aggressive organic solvents, when long-term solution storage in the flask is required, or when a fully inert glass-on-glass seal is specified by your SOP or regulatory documentation.\u003c\/p\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eCan the snap cap be autoclaved along with the flask?\u003cbr\u003e\u003c\/strong\u003eRemove the snap cap before placing the flask in the autoclave. Autoclaving the cap in place can trap steam inside the flask and create pressure differentials that risk cracking the glass. Autoclave the flask body open, allow it to cool, then apply the snap cap after sterilization. The flask body itself is fully autoclavable at 121°C, 15 psi for standard 20-minute cycles.\u003c\/p\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eHow many flasks are in each pack?\u003cbr\u003e\u003c\/strong\u003eThe 10mL and 25mL sizes come in packs of 6, the 50mL, 100mL, 200mL, and 250mL sizes come in packs of 4, and the 500mL and 1000mL sizes come in packs of 2. Each flask ships with its matching snap cap included. All prices are per pack.\u003c\/p\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eAre these flasks interchangeable with Corning Pyrex or Kimax Class A volumetric flasks?\u003cbr\u003e\u003c\/strong\u003eFunctionally yes for standard analytical applications — all are ASTM E-288 Class A certified borosilicate volumetric flasks with TC calibration at 20°C. The SIBATA 2303A Series uses a snap-cap closure rather than the traditional ground-glass stopper format used by Pyrex and Kimax. If your SOP specifies a ground-glass stopper, use the SIBATA 2306A glass-stopper series instead.\u003c\/p\u003e\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eQuality Assurance\u003c\/h2\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eSIBATA Scientific Technology has manufactured precision analytical glassware since 1932. The 2303A Series Volumetric Flasks are certified to ASTM E-288 Class A specifications and comply with USP glassware standards. Each flask undergoes individual calibration verification before shipment. SIBATA's ISO 9001-certified quality management system governs production and inspection across all volumetric glassware series. Every flask carries a 1-year manufacturer warranty.\u003c\/p\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eAs an authorized dealer, we ship directly from USA inventory.\u003c\/p\u003e","brand":"SIBATA","offers":[{"title":"10 mL — Pack of 6","offer_id":48092715090152,"sku":"2303A-10","price":74.0,"currency_code":"USD","in_stock":true},{"title":"25 mL — Pack of 6","offer_id":48092715122920,"sku":"2303A-25","price":84.0,"currency_code":"USD","in_stock":true},{"title":"50 mL — Pack of 4","offer_id":48092715155688,"sku":"2303A-50","price":61.0,"currency_code":"USD","in_stock":true},{"title":"100 mL — Pack of 4","offer_id":48092715188456,"sku":"2303A-100","price":64.0,"currency_code":"USD","in_stock":true},{"title":"200 mL — Pack of 4","offer_id":48092715221224,"sku":"2303A-200","price":87.0,"currency_code":"USD","in_stock":true},{"title":"250 mL — Pack of 4","offer_id":48092715253992,"sku":"2303A-250","price":91.0,"currency_code":"USD","in_stock":true},{"title":"500 mL — Pack of 2","offer_id":48092715286760,"sku":"2303A-500","price":61.0,"currency_code":"USD","in_stock":true},{"title":"1000 mL — Pack of 2","offer_id":48092715319528,"sku":"2303A-1000","price":86.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/unnamed_bd74bae8-5d56-4ab3-bf71-6eb4734e09b6.jpg?v=1772317455"},{"product_id":"heathrow-scientific-volumetric-flask-amber-class-a","title":"Heathrow Scientific Volumetric Flasks - 2307A Series | Amber Class A Glass","description":"\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eSafeguard your light-sensitive chemical standards and biological samples while maintaining uncompromising volumetric precision with the Heathrow Scientific Amber Volumetric Flasks (2307A Series). Manufactured from premium, low-expansion borosilicate glass, these highly durable laboratory flasks are saturated with a low-actinic amber tint designed specifically to block UV and visible light degradation.\u003c\/p\u003e\n\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eEngineered to meet the stringent requirements of rigorous analytical environments, every flask in the 2307A series complies fully with ASTM E-288 Class A specifications and USP standards for quantitative laboratory glassware. They are precisely calibrated \"To Contain\" (TC) exact volumes of liquid at the industry-standard 20°C (68°F), featuring a sharply defined, uniform graduation ring for error-free meniscus visualization. Each flask includes a tight-fitting ground glass stopper to prevent sample evaporation and features a large, frosted marking square for permanent labeling.\u003c\/p\u003e\n\n\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul class=\"marker:text-quiet list-disc\"\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cstrong\u003eLow-Actinic Amber Glass:\u003c\/strong\u003e Provides exceptional protection for photolabile (light-sensitive) materials during storage or analysis.\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cstrong\u003eClass A Precision:\u003c\/strong\u003e Manufactured and individually calibrated to meet strict ASTM E-288 Class A and USP standards.\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cstrong\u003ePremium Borosilicate Construction:\u003c\/strong\u003e Offers a low coefficient of expansion, granting high resistance to thermal shock and harsh chemicals.\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cstrong\u003eIncluded Glass Stopper:\u003c\/strong\u003e Secures the contents with a precision-ground, tight-sealing glass stopper.\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cstrong\u003eLarge Marking Square:\u003c\/strong\u003e Allows technicians to easily date, track, and label volatile contents.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eOrdering Information \u0026amp; Specifications\u003c\/h2\u003e\n\u003cdiv class=\"overflow-x-auto my-4\"\u003e\n  \u003ctable class=\"min-w-full text-left text-sm border-collapse border border-gray-300\"\u003e\n    \u003cthead class=\"bg-gray-100 font-semibold\"\u003e\n      \u003ctr\u003e\n        \u003cth class=\"p-2 border border-gray-300\"\u003eVolume Capacity\u003c\/th\u003e\n        \u003cth class=\"p-2 border border-gray-300\"\u003eDimensions (L x W)\u003c\/th\u003e\n        \u003cth class=\"p-2 border border-gray-300\"\u003ePackaging\u003c\/th\u003e\n        \u003cth class=\"p-2 border border-gray-300\"\u003ePart Number (SKU)\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003e10 mL\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003e28 x 95 mm\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003ePack of 6\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003e\u003cstrong\u003e2307A-10\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003e20 mL\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003e36 x 115 mm\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003ePack of 6\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003e\u003cstrong\u003e2307A-20\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003e25 mL\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003e39 x 122 mm\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003ePack of 6\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003e\u003cstrong\u003e2307A-25\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003e50 mL\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003e49 x 150 mm\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003ePack of 4\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003e\u003cstrong\u003e2307A-50\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003e100 mL\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003e60 x 180 mm\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003ePack of 4\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003e\u003cstrong\u003e2307A-100\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003e200 mL\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003e75 x 220 mm\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003ePack of 4\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003e\u003cstrong\u003e2307A-200\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003e250 mL\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003e78 x 239 mm\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003ePack of 4\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003e\u003cstrong\u003e2307A-250\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003e500 mL\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003e100 x 280 mm\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003ePack of 2\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003e\u003cstrong\u003e2307A-500\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003e1000 mL\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003e127 x 325 mm\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003ePack of 2\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003e\u003cstrong\u003e2307A-1000\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdiv class=\"overflow-x-auto my-4\"\u003e\n  \u003ctable class=\"min-w-full text-left text-sm border-collapse border border-gray-300\"\u003e\n    \u003cthead class=\"bg-gray-100 font-semibold\"\u003e\n      \u003ctr\u003e\n        \u003cth class=\"p-2 border border-gray-300\"\u003eSpecification\u003c\/th\u003e\n        \u003cth class=\"p-2 border border-gray-300\"\u003eDetail\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003eMaterial\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003eLow-Actinic Amber Borosilicate Glass\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003eStandard Compliance\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003eASTM E-288 Class A \/ USP Standards\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003eCalibration Profile\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003eTo Contain (TC) at 20°C\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003eIncluded Accessory\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003eGround Glass Stopper\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003eSterilization\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003eFully Autoclavable\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cem\u003eLabSupplies.com is an authorized distributor of Heathrow Scientific. All volumetric flasks ship directly from our verified USA warehouse.\u003c\/em\u003e\u003c\/p\u003e\n","brand":"Heathrow Scientific","offers":[{"title":"10 mL (Pack of 6)","offer_id":48098631188712,"sku":"2307A-10","price":100.0,"currency_code":"USD","in_stock":true},{"title":"20 mL (Pack of 6)","offer_id":48098625847528,"sku":"2307A-20","price":122.0,"currency_code":"USD","in_stock":true},{"title":"25 mL (Pack of 6)","offer_id":48098631221480,"sku":"2307A-25","price":122.0,"currency_code":"USD","in_stock":true},{"title":"50 mL (Pack of 4)","offer_id":48098631254248,"sku":"2307A-50","price":88.0,"currency_code":"USD","in_stock":true},{"title":"100 mL (Pack of 4)","offer_id":48098631287016,"sku":"2307A-100","price":100.0,"currency_code":"USD","in_stock":true},{"title":"200 mL (Pack of 4)","offer_id":48098631319784,"sku":"2307A-200","price":210.0,"currency_code":"USD","in_stock":true},{"title":"250 mL (Pack of 4)","offer_id":48098631352552,"sku":"2307A-250","price":241.0,"currency_code":"USD","in_stock":true},{"title":"500 mL (Pack of 2)","offer_id":48098631385320,"sku":"2307A-500","price":164.0,"currency_code":"USD","in_stock":true},{"title":"1000 mL (Pack of 2)","offer_id":48098631418088,"sku":"2307A-1000","price":247.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/unnamed_07e64de1-c8d6-4106-b9bf-81c1077da754.jpg?v=1772652321"},{"product_id":"globe-flask-601435","title":"1000 mL Volumetric Flask, Polypropylene, Screw Cap — Class B, Case of 6 | Globe Scientific","description":"\u003ch1\u003eGlobe Scientific 1000 mL Volumetric Flask, Polypropylene with Screw Cap, Case of 6\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003eGlobe Scientific 1000 mL Polypropylene Volumetric Flask\u003c\/strong\u003e delivers reliable single-mark volume measurement without the breakage risk of glass. Molded from chemical-resistant PP and fitted with a secure screw cap, it suits standard solution preparation, buffer and reagent dilution, and routine quantitative analysis where shatter resistance matters at the bench.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eVolumetric Flask with Screw Cap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVolume\/Size\u003c\/th\u003e\n\u003ctd\u003e1000 mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003ePolypropylene (PP)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClosure\/Cap\u003c\/th\u003e\n\u003ctd\u003eScrew Cap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGraduation\u003c\/th\u003e\n\u003ctd\u003eSingle calibration mark (1000 mL)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSterility\u003c\/th\u003e\n\u003ctd\u003eNon-sterile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack Size\u003c\/th\u003e\n\u003ctd\u003eCase of 6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eAvailable Options\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eOption\u003c\/th\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003cth\u003ePrice\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1000 mL PP Volumetric Flask, Screw Cap\u003c\/td\u003e\n\u003ctd\u003e601435\u003c\/td\u003e\n\u003ctd\u003e$198.50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePreparing standard solutions for titration and quantitative assays\u003c\/li\u003e\n\u003cli\u003eAccurate dilution of stock buffers and reagents to volume\u003c\/li\u003e\n\u003cli\u003eMixing media and salt solutions where glass breakage is a hazard\u003c\/li\u003e\n\u003cli\u003eCalibration standard makeup in QC and environmental labs\u003c\/li\u003e\n\u003cli\u003eLong-term storage of prepared standards via the leak-resistant screw cap\u003c\/li\u003e\n\u003cli\u003eTeaching and high-throughput workflows requiring durable volumetric ware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eChemical Resistance\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eReagent Class\u003c\/th\u003e\n\u003cth\u003eCompatibility\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAqueous buffers\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDilute acids\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDilute bases\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlcohols\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAcetonitrile\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAromatic solvents\u003c\/td\u003e\n\u003ctd\u003eLimited — test before use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChlorinated solvents\u003c\/td\u003e\n\u003ctd\u003eNot recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eQuality \u0026amp; Procurement\u003c\/h2\u003e\n\u003cp\u003elabsupplies.com is an authorized Globe Scientific dealer shipping from US inventory. Each case carries lot numbers supporting traceability for CAP-, CLIA-, and ISO 15189-accredited laboratories. \u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eIs this a Class A or Class B volumetric flask?\u003c\/h3\u003e\n\u003cp\u003eMolded polypropylene volumetric flasks carry a single calibration mark and are supplied to Class B tolerance. For trace-level work requiring tighter accuracy, verify the application against your QC limits before substituting for glass.\u003c\/p\u003e\n\u003ch3\u003eCan the polypropylene flask be autoclaved?\u003c\/h3\u003e\n\u003cp\u003eYes. Polypropylene withstands repeated autoclaving at 121°C. Loosen the screw cap during the cycle to avoid pressure buildup, and allow the flask to cool fully before refilling to the calibration mark.\u003c\/p\u003e\n\u003ch3\u003eWhat is the pack quantity for SKU 601435?\u003c\/h3\u003e\n\u003cp\u003eThis 1000 mL flask ships as a case of 6, priced per case at $198.50. \u003c\/p\u003e\n\u003ch3\u003eIs the flask compatible with organic solvents?\u003c\/h3\u003e\n\u003cp\u003eIt handles aqueous buffers, dilute acids and bases well, and tolerates alcohols and acetonitrile. Aromatic and chlorinated solvents are not recommended in PP — test compatibility or select glass for those reagents.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"Product\",\n  \"name\": \"Globe Scientific 1000 mL Volumetric Flask, Polypropylene with Screw Cap\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"Globe Scientific\"\n  },\n  \"sku\": \"601435\",\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"priceCurrency\": \"USD\",\n    \"price\": \"198.50\",\n    \"availability\": \"https:\/\/schema.org\/InStock\",\n    \"seller\": {\n      \"@type\": \"Organization\",\n      \"name\": \"labsupplies.com\"\n    }\n  }\n}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this a Class A or Class B volumetric flask?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Molded polypropylene volumetric flasks carry a single calibration mark and are supplied to Class B tolerance. For trace-level work requiring tighter accuracy, verify the application against your QC limits before substituting for glass.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can the polypropylene flask be autoclaved?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. Polypropylene withstands repeated autoclaving at 121°C. Loosen the screw cap during the cycle to avoid pressure buildup, and allow the flask to cool fully before refilling to the calibration mark.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the pack quantity for SKU 601435?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This 1000 mL flask ships as a case of 6, priced per case at $198.50.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is the flask compatible with organic solvents?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"It handles aqueous buffers, dilute acids and bases well, and tolerates alcohols and acetonitrile. 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