{"product_id":"globe-scientific-calibration-weight-oiml-class-f2-gb-f2-5kg-c","title":"Calibration Weights, OIML Class E2\/F1\/F2, Stainless Steel — 50g to 20kg, ISO 17025 Cert Option, Single Weight\/Pack | Globe Scientific","description":"\u003ch2\u003eOIML Class E2, F1 \u0026amp; F2 Calibration Weights, 50g–20kg, Certificate or Statement of Accuracy — Single Weight\/Pack\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eGlobe Scientific Calibration Weights\u003c\/strong\u003e deliver traceable mass standards for verifying and adjusting analytical, precision, and industrial balances across the laboratory and production floor. Choose OIML Class E2, F1, or F2 to match your balance readability and routine calibration tolerances. Each weight ships individually, with documentation tailored to your QA workflow.\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\u003eCalibration Weight (mass standard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVolume\/Size\u003c\/th\u003e\n\u003ctd\u003e50g, 100g, 200g, 500g, 1kg, 2kg, 5kg, 10kg, 20kg (varies by variant)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClosure\/Cap\u003c\/th\u003e\n\u003ctd\u003eNot applicable — solid weight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGraduation\u003c\/th\u003e\n\u003ctd\u003eOIML accuracy classes E2, F1, F2\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\u003e1 weight per pack (sold individually)\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 (per weight)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eE2, 50g, Statement of Accuracy\u003c\/td\u003e\n\u003ctd\u003eGB-E2-50G\u003c\/td\u003e\n\u003ctd\u003e$143.30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eE2, 50g, ISO 17025:2017 Cert.\u003c\/td\u003e\n\u003ctd\u003eGB-E2-50G-C\u003c\/td\u003e\n\u003ctd\u003e$194.30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eE2, 100g, Statement of Accuracy\u003c\/td\u003e\n\u003ctd\u003eGB-E2-100G\u003c\/td\u003e\n\u003ctd\u003e$179.40\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eE2, 100g, ISO 17025:2017 Cert.\u003c\/td\u003e\n\u003ctd\u003eGB-E2-100G-C\u003c\/td\u003e\n\u003ctd\u003e$230.40\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eE2, 200g, Statement of Accuracy\u003c\/td\u003e\n\u003ctd\u003eGB-E2-200G\u003c\/td\u003e\n\u003ctd\u003e$278.90\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eE2, 200g, ISO 17025:2017 Cert.\u003c\/td\u003e\n\u003ctd\u003eGB-E2-200G-C\u003c\/td\u003e\n\u003ctd\u003e$348.60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eF1, 100g, Statement of Accuracy\u003c\/td\u003e\n\u003ctd\u003eGB-F1-100G\u003c\/td\u003e\n\u003ctd\u003e$133.30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eF1, 100g, ISO 17025:2017 Cert.\u003c\/td\u003e\n\u003ctd\u003eGB-F1-100G-C\u003c\/td\u003e\n\u003ctd\u003e$188.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eF1, 200g, Statement of Accuracy\u003c\/td\u003e\n\u003ctd\u003eGB-F1-200G\u003c\/td\u003e\n\u003ctd\u003e$176.90\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eF1, 200g, ISO 17025:2017 Cert.\u003c\/td\u003e\n\u003ctd\u003eGB-F1-200G-C\u003c\/td\u003e\n\u003ctd\u003e$296.30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eF1, 500g, Statement of Accuracy\u003c\/td\u003e\n\u003ctd\u003eGB-F1-500G\u003c\/td\u003e\n\u003ctd\u003e$237.80\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eF1, 500g, ISO 17025:2017 Cert.\u003c\/td\u003e\n\u003ctd\u003eGB-F1-500G-C\u003c\/td\u003e\n\u003ctd\u003e$375.90\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eF1, 1kg, Statement of Accuracy\u003c\/td\u003e\n\u003ctd\u003eGB-F1-1KG\u003c\/td\u003e\n\u003ctd\u003e$418.30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eF1, 1kg, ISO 17025:2017 Cert.\u003c\/td\u003e\n\u003ctd\u003eGB-F1-1KG-C\u003c\/td\u003e\n\u003ctd\u003e$570.10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eF1, 2kg, Statement of Accuracy\u003c\/td\u003e\n\u003ctd\u003eGB-F1-2KG\u003c\/td\u003e\n\u003ctd\u003e$588.70\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eF1, 2kg, ISO 17025:2017 Cert.\u003c\/td\u003e\n\u003ctd\u003eGB-F1-2KG-C\u003c\/td\u003e\n\u003ctd\u003e$749.20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eF1, 5kg, Statement of Accuracy\u003c\/td\u003e\n\u003ctd\u003eGB-F1-5KG\u003c\/td\u003e\n\u003ctd\u003e$1040.30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eF1, 5kg, ISO 17025:2017 Cert.\u003c\/td\u003e\n\u003ctd\u003eGB-F1-5KG-C\u003c\/td\u003e\n\u003ctd\u003e$1194.70\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eF2, 500g, Statement of Accuracy\u003c\/td\u003e\n\u003ctd\u003eGB-F2-500G\u003c\/td\u003e\n\u003ctd\u003e$164.40\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eF2, 500g, ISO 17025:2017 Cert.\u003c\/td\u003e\n\u003ctd\u003eGB-F2-500G-C\u003c\/td\u003e\n\u003ctd\u003e$231.60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eF2, 1kg, Statement of Accuracy\u003c\/td\u003e\n\u003ctd\u003eGB-F2-1KG\u003c\/td\u003e\n\u003ctd\u003e$263.90\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eF2, 1kg, ISO 17025:2017 Cert.\u003c\/td\u003e\n\u003ctd\u003eGB-F2-1KG-C\u003c\/td\u003e\n\u003ctd\u003e$400.80\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eF2, 2kg, Statement of Accuracy\u003c\/td\u003e\n\u003ctd\u003eGB-F2-2KG\u003c\/td\u003e\n\u003ctd\u003e$402.10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eF2, 2kg, ISO 17025:2017 Cert.\u003c\/td\u003e\n\u003ctd\u003eGB-F2-2KG-C\u003c\/td\u003e\n\u003ctd\u003e$515.20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eF2, 5kg, Statement of Accuracy\u003c\/td\u003e\n\u003ctd\u003eGB-F2-5KG\u003c\/td\u003e\n\u003ctd\u003e$628.50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eF2, 5kg, ISO 17025:2017 Cert.\u003c\/td\u003e\n\u003ctd\u003eGB-F2-5KG-C\u003c\/td\u003e\n\u003ctd\u003e$799.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eF2, 10kg, Statement of Accuracy\u003c\/td\u003e\n\u003ctd\u003eGB-F2-10KG\u003c\/td\u003e\n\u003ctd\u003e$1443.60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eF2, 10kg, ISO 17025:2017 Cert.\u003c\/td\u003e\n\u003ctd\u003eGB-F2-10KG-C\u003c\/td\u003e\n\u003ctd\u003e$1611.50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eF2, 20kg, Statement of Accuracy\u003c\/td\u003e\n\u003ctd\u003eGB-F2-20KG\u003c\/td\u003e\n\u003ctd\u003e$2450.10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eF2, 20kg, ISO 17025:2017 Cert.\u003c\/td\u003e\n\u003ctd\u003eGB-F2-20KG-C\u003c\/td\u003e\n\u003ctd\u003e$2699.10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRoutine verification of analytical and precision laboratory balances\u003c\/li\u003e\n\u003cli\u003eAs-found \/ as-left checks during scheduled instrument calibration cycles\u003c\/li\u003e\n\u003cli\u003eEccentricity, repeatability, and linearity testing of weighing systems\u003c\/li\u003e\n\u003cli\u003eQuality-control mass checks in pharmaceutical and food testing labs\u003c\/li\u003e\n\u003cli\u003eIndustrial and shipping scale verification with 10kg and 20kg weights\u003c\/li\u003e\n\u003cli\u003eReference standards supporting metrology and QA audit documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality \u0026amp; Procurement\u003c\/h2\u003e\n\u003cp\u003eOrdered through labsupplies.com, an authorized Globe Scientific dealer shipping from US inventory. Each weight is supplied with a Statement of Accuracy or an ISO 17025:2017 Certificate of Calibration, and units carry lot numbers that support traceability for CAP-, CLIA-, and ISO 15189-accredited labs. Institutional and grant-funded tiered pricing is available on request.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is the difference between OIML Class E2, F1, and F2?\u003c\/h3\u003e\n\u003cp\u003eThe classes define maximum permissible error, tightest first. E2 weights suit high-resolution analytical balances, F1 covers precision balances, and F2 fits general laboratory and production weighing where wider tolerances are acceptable.\u003c\/p\u003e\n\u003ch3\u003eShould I choose the Statement of Accuracy or the ISO 17025:2017 certificate version?\u003c\/h3\u003e\n\u003cp\u003eA Statement of Accuracy confirms the weight meets its class tolerance. The \"-C\" SKUs add an ISO 17025:2017 Certificate of Calibration with measured values and traceability, which audited and accredited labs typically require.\u003c\/p\u003e\n\u003ch3\u003eWhat material are these weights made from?\u003c\/h3\u003e\n\u003cp\u003eAll variants are machined from stainless steel for corrosion resistance, low magnetic susceptibility, and long-term mass stability under routine handling.\u003c\/p\u003e\n\u003ch3\u003eHow often should calibration weights be recalibrated?\u003c\/h3\u003e\n\u003cp\u003eRecalibration intervals depend on usage and your quality program, but most labs recertify reference weights annually. Periodic recertification keeps documented traceability intact for compliance.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"Product\",\n  \"name\": \"Globe Scientific Calibration Weights, OIML Class E2\/F1\/F2, 50g–20kg\",\n  \"brand\": {\"@type\": \"Brand\", \"name\": \"Globe Scientific\"},\n  \"description\": \"Stainless steel OIML Class E2, F1, and F2 calibration weights from 50g to 20kg, available with a Statement of Accuracy or an ISO 17025:2017 Certificate of Calibration. 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E2 weights suit high-resolution analytical balances, F1 covers precision balances, and F2 fits general laboratory and production weighing where wider tolerances are acceptable.\"}},\n    {\"@type\": \"Question\", \"name\": \"Should I choose the Statement of Accuracy or the ISO 17025:2017 certificate version?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A Statement of Accuracy confirms the weight meets its class tolerance. The -C SKUs add an ISO 17025:2017 Certificate of Calibration with measured values and traceability, which audited and accredited labs typically require.\"}},\n    {\"@type\": \"Question\", \"name\": \"What material are these weights made from?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"All variants are machined from stainless steel for corrosion resistance, low magnetic susceptibility, and long-term mass stability under routine handling.\"}},\n    {\"@type\": \"Question\", \"name\": \"How often should calibration weights be recalibrated?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Recalibration intervals depend on usage and your quality program, but most labs recertify reference weights annually. 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