{"product_id":"30-and-50-ml-centrifuge-tube-racks-20-pos-yellow-ps-2403500y10e1","title":"50 mL Centrifuge Tube Racks, PS, Yellow — 240-3500-Y10 | 6\/Bag | Caplugs® Evergreen","description":"\u003ch2\u003e50 mL \u0026amp; 30 mL Centrifuge Tube Racks — 20-Position, Yellow Polystyrene, 6\/Bag (240-3500-Y10)\u003c\/h2\u003e\n\u003cp\u003eThese yellow polystyrene centrifuge tube racks hold both 30 mL and 50 mL conical centrifuge tubes in 20 positions, making them a single-format solution for the two most common large-volume tube sizes used across clinical, research, and biotech laboratories. Supplied non-sterile in bags of six, part number 240-3500-Y10 is an economical choice for high-throughput labs that need consistent, color-coded tube organization at the bench, during centrifugation staging, and in storage.\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\u003e240-3500-Y10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eCentrifuge Tube Rack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Tube Sizes\u003c\/td\u003e\n\u003ctd\u003e30 mL and 50 mL conical centrifuge tubes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Positions\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003ePolystyrene (PS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eYellow\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\u003eBPA \/ Phthalate Free\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack Size\u003c\/td\u003e\n\u003ctd\u003e6\/Bag\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLot Numbered\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\u003eCentrifugation staging: organizing tubes before and after runs in clinical chemistry and molecular diagnostics workflows\u003c\/li\u003e\n\u003cli\u003eCell culture: holding 50 mL conical tubes during media preparation, cell resuspension, and aliquoting\u003c\/li\u003e\n\u003cli\u003eMicrobiology: batch incubation and specimen processing using 30 mL or 50 mL tubes\u003c\/li\u003e\n\u003cli\u003eResearch laboratories: color-coded rack assignment by assay type, sample batch, or department in multi-rack workstations\u003c\/li\u003e\n\u003cli\u003eLaboratory storage: stable upright tube organization in refrigerators, incubators, and on benchtops\u003c\/li\u003e\n\u003cli\u003eCAP, CLIA, and ISO 15189 environments: lot-numbered bags support reagent and consumable traceability documentation\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\u003eGood — short-term contact\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEthanol \u0026gt;70%\u003c\/td\u003e\n\u003ctd\u003eNot recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAcetone\u003c\/td\u003e\n\u003ctd\u003eNot recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChlorinated or aromatic solvents\u003c\/td\u003e\n\u003ctd\u003eNot recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAutoclaving\u003c\/td\u003e\n\u003ctd\u003eNot compatible\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 tube racks are manufactured to ISO-certified dimensional standards, ensuring consistent rack geometry, position spacing, and color uniformity across every bag. The BPA-free, phthalate-free polystyrene construction meets modern laboratory safety expectations, and every bag carries a lot number to satisfy CAP, CLIA, and ISO 15189 consumable traceability requirements. LabSupplies.com is an authorized Caplugs® Evergreen dealer, shipping from USA inventory with tiered pricing available for high-volume and institutionally funded laboratories.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDo these racks hold both 30 mL and 50 mL tubes in the same rack?\u003c\/strong\u003e\u003cbr\u003eYes — each rack accommodates both 30 mL and 50 mL conical centrifuge tubes across all 20 positions, so labs using both tube sizes do not need separate rack formats.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAre the racks autoclavable?\u003c\/strong\u003e\u003cbr\u003eNo. Polystyrene is not autoclavable. These racks are intended for standard benchtop and storage use with non-sterile workflows. For autoclavable rack options, consider polypropylene alternatives.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy yellow? Can I use multiple colors to organize my lab?\u003c\/strong\u003e\u003cbr\u003eYellow color-coding allows teams to assign racks by assay type, specimen batch, or department at a glance in multi-rack workstations, reducing handling errors. Caplugs® Evergreen offers centrifuge tube racks in additional colors if your lab uses a color-coded organization system.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAre these racks lot-numbered for compliance documentation?\u003c\/strong\u003e\u003cbr\u003eYes — every bag is lot-numbered, supporting consumable traceability records required under CAP, CLIA, and ISO 15189 laboratory accreditation standards.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"50 mL \u0026 30 mL Centrifuge Tube Racks, 20-Position, Yellow Polystyrene, 6\/Bag — Caplugs® Evergreen 240-3500-Y10\",\"sku\":\"2403500Y10E1\",\"mpn\":\"240-3500-Y10\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Caplugs® Evergreen\"},\"material\":\"Polystyrene (PS)\",\"color\":\"Yellow\",\"offers\":{\"@type\":\"Offer\",\"priceCurrency\":\"USD\",\"price\":\"21.00\",\"availability\":\"https:\/\/schema.org\/InStock\"}}\u003c\/script\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Do these racks hold both 30 mL and 50 mL tubes in the same rack?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes — each rack accommodates both 30 mL and 50 mL conical centrifuge tubes across all 20 positions, so labs using both tube sizes do not need separate rack formats.\"}},{\"@type\":\"Question\",\"name\":\"Are the racks autoclavable?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. Polystyrene is not autoclavable. 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