{"product_id":"freestanding-centrifuge-tubes-30ml-red-caps-pp-2403530r30e1","title":"30 mL Centrifuge Tubes, Freestanding, PP, Red — 240-3530-R30 | 1000\/Bag | Caplugs® Evergreen","description":"\u003ch2\u003e30 mL Freestanding Centrifuge Tubes, Polypropylene, Red Cap — Caplugs® Evergreen 240-3530-R30\u003c\/h2\u003e\n\u003cp\u003eThese 30 mL polypropylene freestanding centrifuge tubes feature a flat-bottom base that stands upright without a rack, molded-in graduations at every 5 mL, and a red cap for color-coded specimen identification. Supplied non-sterile and unassembled in 1000\/Bag format, part number 240-3530-R30 is rated to 10,000 × g — making these tubes suitable for a broad range of centrifugation workflows in clinical, research, and molecular diagnostic laboratories.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e240-3530-R30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Type\u003c\/td\u003e\n\u003ctd\u003eFreestanding Centrifuge Tube\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolume\u003c\/td\u003e\n\u003ctd\u003e30 mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum RCF\u003c\/td\u003e\n\u003ctd\u003e10,000 × g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGraduations\u003c\/td\u003e\n\u003ctd\u003eMolded-in, every 5 mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBase Style\u003c\/td\u003e\n\u003ctd\u003eFreestanding Flat Bottom\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCap Color\u003c\/td\u003e\n\u003ctd\u003eRed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Body Color\u003c\/td\u003e\n\u003ctd\u003eNatural\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003ePolypropylene (PP)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSterility\u003c\/td\u003e\n\u003ctd\u003eNon-Sterile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack Size\u003c\/td\u003e\n\u003ctd\u003e1000\/Bag (Unassembled)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBPA \/ Phthalate Free\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-speed centrifugation up to 10,000 × g in clinical chemistry, molecular diagnostics, and microbiology workflows\u003c\/li\u003e\n\u003cli\u003eNucleic acid extraction (DNA\/RNA) requiring polypropylene chemical resistance and precise 30 mL volume capacity\u003c\/li\u003e\n\u003cli\u003eCell culture and protein purification protocols where a larger-format tube is required\u003c\/li\u003e\n\u003cli\u003eSpecimen processing, aliquoting, and bench-top staging — the freestanding flat-bottom base eliminates the need for an external rack\u003c\/li\u003e\n\u003cli\u003eColor-coded specimen management systems: the red cap aligns with standard clinical laboratory serum-type or STAT specimen conventions\u003c\/li\u003e\n\u003cli\u003eCAP, CLIA, and ISO 15189-compliant workflows benefiting from lot-numbered, traceable consumables\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eChemical Resistance\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eReagent \/ Condition\u003c\/th\u003e\n\u003cth\u003eCompatibility\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAqueous buffers \/ saline\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDilute acids and bases\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlcohols (ethanol, isopropanol)\u003c\/td\u003e\n\u003ctd\u003eGood — short-term contact\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKetones (acetone)\u003c\/td\u003e\n\u003ctd\u003eLimited — short-term contact only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChlorinated solvents (chloroform, DCM)\u003c\/td\u003e\n\u003ctd\u003eNot recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAromatic solvents (toluene, xylene)\u003c\/td\u003e\n\u003ctd\u003eNot recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eQuality \u0026amp; Procurement\u003c\/h2\u003e\n\u003cp\u003eMade in USA, these Caplugs® Evergreen centrifuge tubes are manufactured from BPA-free, phthalate-free polypropylene resin and are lot-numbered to support traceability requirements under CAP, CLIA, and ISO 15189 quality frameworks. The unassembled 1000\/Bag format minimizes storage footprint while maximizing supply efficiency for high-volume laboratories. LabSupplies.com is an authorized dealer of Caplugs® Evergreen products and ships from USA inventory, with tiered volume pricing available for institutional, hospital, and grant-funded procurement.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAre these centrifuge tubes sterile?\u003c\/strong\u003e\u003cbr\u003eNo — they are supplied non-sterile. For applications that require sterile tubes, a separately offered sterile-grade product should be selected.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the maximum centrifuge speed these tubes can withstand?\u003c\/strong\u003e\u003cbr\u003eThese tubes are rated to 10,000 × g. Always confirm that your centrifuge rotor and run conditions do not exceed this rated RCF before use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need a tube rack to use these?\u003c\/strong\u003e\u003cbr\u003eNo — the freestanding flat-bottom base allows the tubes to stand upright on the bench without any external rack, simplifying staging, aliquoting, and short-term storage steps.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does the red cap signify, and can I use these alongside other cap colors?\u003c\/strong\u003e\u003cbr\u003eIn standard clinical laboratory color-coding conventions, red caps are commonly associated with serum-type or STAT specimen categories. Because Caplugs® Evergreen offers centrifuge tubes in multiple cap colors, labs running color-coded tube management systems can mix cap colors across batches to distinguish specimen types or processing priorities.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"30 mL Freestanding Centrifuge Tubes, Polypropylene, Red Cap — Caplugs® Evergreen 240-3530-R30, 1000\/Bag\",\"sku\":\"2403530R30E1\",\"mpn\":\"240-3530-R30\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Caplugs® Evergreen\"},\"material\":\"Polypropylene (PP)\",\"color\":\"Red Cap \/ Natural Body\",\"offers\":{\"@type\":\"Offer\",\"priceCurrency\":\"USD\",\"price\":\"231.65\",\"availability\":\"https:\/\/schema.org\/InStock\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Are these centrifuge tubes sterile?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No — they are supplied non-sterile. 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Always confirm that your centrifuge rotor and run conditions do not exceed this rated RCF before use.\"}},{\"@type\":\"Question\",\"name\":\"Do I need a tube rack to use these?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No — the freestanding flat-bottom base allows the tubes to stand upright on the bench without any external rack, simplifying staging, aliquoting, and short-term storage steps.\"}},{\"@type\":\"Question\",\"name\":\"What does the red cap signify, and can I use these alongside other cap colors?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"In standard clinical laboratory color-coding conventions, red caps are commonly associated with serum-type or STAT specimen categories. 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