{"product_id":"214-2079-g60-round-bottom-screw-cap-tube","title":"Round Bottom Test Tubes, 8.0 mL, Polypropylene (PP), 13 x 100 mm, Natural with Green Screw Caps, 1000\/Bag | Caplugs® Evergreen","description":"\u003ch1\u003eCaplugs® Evergreen 8.0 mL Round Bottom Test Tubes, Polypropylene (PP), 13 x 100 mm, Natural with Green Screw Caps, 1000\/Bag\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003eCaplugs® Evergreen 8.0 mL Round Bottom Test Tubes\u003c\/strong\u003e deliver durable polypropylene construction in a standard 13 x 100 mm format for sample collection, aliquoting, and routine bench storage. Each natural-colored tube ships unassembled with a matching green screw cap, giving labs leak-resistant closure and easy color-coded sample tracking across high-throughput workflows.\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\u003eRound Bottom Test Tubes (with Screw Caps)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVolume\/Size\u003c\/th\u003e\n\u003ctd\u003e8.0 mL; 13 x 100 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003ePolypropylene (PP), Natural\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClosure\/Cap\u003c\/th\u003e\n\u003ctd\u003eGreen Screw Cap (shipped unassembled)\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\u003e1000\/Bag\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of Origin\u003c\/th\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAliquoting and short-term storage of aqueous samples and buffers\u003c\/li\u003e\n\u003cli\u003eSample collection and transport in clinical and research settings\u003c\/li\u003e\n\u003cli\u003eGeneral benchtop reagent dispensing and dilution prep\u003c\/li\u003e\n\u003cli\u003eBulk specimen handling where color-coded caps aid sorting\u003c\/li\u003e\n\u003cli\u003eCentrifugation of small-volume samples at moderate g-forces\u003c\/li\u003e\n\u003cli\u003eCold storage of non-volatile samples in racks or freezer boxes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality \u0026amp; Procurement\u003c\/h2\u003e\n\u003cp\u003elabsupplies.com is an authorized Caplugs® Evergreen dealer shipping from US inventory, and these tubes are Made in USA. Each bag carries lot numbers to support traceability for CAP-, CLIA-, and ISO 15189-accredited laboratories. Institutional and grant-funded tiered pricing is available — contact our procurement team for volume quotes and standing-order setup.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eAre these tubes shipped assembled with the caps on?\u003c\/h3\u003e\n\u003cp\u003eNo. These tubes ship unassembled, with the 8.0 mL natural polypropylene tubes and matching green screw caps packed together for you to assemble as needed in your workflow.\u003c\/p\u003e\n\u003ch3\u003eAre the tubes sterile?\u003c\/h3\u003e\n\u003cp\u003eNo. These are non-sterile tubes intended for general laboratory use. If your protocol requires sterility, autoclave or sterilize them according to your lab's validated procedure before use.\u003c\/p\u003e\n\u003ch3\u003eWhat are the tube dimensions and capacity?\u003c\/h3\u003e\n\u003cp\u003eEach tube measures 13 x 100 mm with an 8.0 mL nominal capacity and a round bottom, fitting standard 13 mm tube racks and most benchtop centrifuge adapters for that size.\u003c\/p\u003e\n\u003ch3\u003eCan polypropylene tubes be autoclaved?\u003c\/h3\u003e\n\u003cp\u003ePolypropylene generally withstands standard autoclave cycles at 121°C. 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