{"product_id":"freestanding-centrifuge-tubes-30ml-green-caps-pp-2403530g30e1","title":"30 mL Centrifuge Tubes, Freestanding, PP, Green — 240-3530-G30 | 1000\/Bag | Caplugs® Evergreen","description":"\u003ch2\u003e30 mL Freestanding Centrifuge Tubes, Polypropylene, Green Caps — 240-3530-G30 | 1000\/Bag\u003c\/h2\u003e\n\u003cp\u003eThese 30 mL polypropylene centrifuge tubes feature a freestanding flat-bottom base, molded-in graduations every 5 mL, and green screw caps for color-coded sample identification. Rated to 10,000 × g and supplied non-sterile in bulk 1000\/Bag format (unassembled), they are well suited for high-throughput clinical, research, and diagnostic workflows where a large-volume, rack-free tube is essential. Part number 240-3530-G30 is a Caplugs® Evergreen product manufactured in the USA.\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-G30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct 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\u003eGreen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Body Color\u003c\/td\u003e\n\u003ctd\u003eNatural (clear)\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\u003eFormat\u003c\/td\u003e\n\u003ctd\u003eUnassembled\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack Size\u003c\/td\u003e\n\u003ctd\u003e1000\/Bag\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\u003eClinical chemistry and molecular diagnostics requiring a 30 mL centrifuge tube rated to 10,000 × g\u003c\/li\u003e\n\u003cli\u003eNucleic acid (DNA\/RNA) extraction and purification workflows\u003c\/li\u003e\n\u003cli\u003eCell culture media preparation, cell harvest, and protein purification\u003c\/li\u003e\n\u003cli\u003eLarge-volume sample aliquoting and bench-top specimen processing — no rack required thanks to the freestanding base\u003c\/li\u003e\n\u003cli\u003eMicrobiology and environmental laboratory sample concentration\u003c\/li\u003e\n\u003cli\u003eColor-coded batch management: green cap convention supports heparin-type specimen identification and multi-color tube systems in CAP\/CLIA\/ISO 15189-accredited laboratories\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 and 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\u003eEthanol and isopropanol\u003c\/td\u003e\n\u003ctd\u003eGood — short-term contact\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAcetone and ketones\u003c\/td\u003e\n\u003ctd\u003eLimited — short-term only; verify before use\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\u003ctr\u003e\n\u003ctd\u003eAutoclave \/ steam sterilization\u003c\/td\u003e\n\u003ctd\u003eCompatible (PP is autoclavable; tubes are supplied non-sterile)\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 produced under ISO 9001 quality management from BPA-free, phthalate-free polypropylene resin with lot-numbering to support traceability requirements in CAP-, CLIA-, and ISO 15189-accredited laboratories. LabSupplies.com is an authorized Caplugs® Evergreen dealer shipping from USA inventory, with tiered volume pricing available for institutional procurement, hospital systems, and grant-funded research facilities.\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 and unassembled in 1000\/Bag packaging. If your workflow requires sterility, the tubes may be autoclaved prior to use given their polypropylene construction.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is the maximum centrifugation speed for these tubes?\u003c\/strong\u003e\u003cbr\u003eThe tubes are rated to 10,000 × g, making them suitable for standard benchtop centrifuges used in clinical chemistry, nucleic acid extraction, and cell harvest protocols.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDo the tubes require a rack for bench-top use?\u003c\/strong\u003e\u003cbr\u003eNo. The freestanding flat-bottom base allows the tubes to stand upright on the bench without any additional rack or holder, streamlining specimen staging and aliquoting workflows.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat does the green cap signify?\u003c\/strong\u003e\u003cbr\u003eGreen is a widely recognized color convention in clinical and research laboratory tube management — commonly associated with heparin-type specimens and used for color-coded batch grouping. Laboratories operating multi-cap-color systems can use the green caps on 240-3530-G30 to distinguish sample sets and reduce processing errors.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"30 mL Freestanding Centrifuge Tubes, Polypropylene, Green Caps, Non-Sterile — 1000\/Bag\",\"sku\":\"2403530G30E1\",\"mpn\":\"240-3530-G30\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Caplugs® Evergreen\"},\"material\":\"Polypropylene (PP)\",\"color\":\"Green\",\"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 and unassembled in 1000\/Bag packaging. 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