{"product_id":"214-2070-010-round-bottom-test-tube","title":"Round Bottom Test Tubes, 16 mL, 17 x 100 mm, Polystyrene, Natural, 1000\/Bag | Caplugs® Evergreen","description":"\u003ch1\u003eCaplugs® Evergreen 16 mL Round Bottom Test Tubes, 17 x 100 mm, Polystyrene, Natural, 1000\/Bag\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003eCaplugs® Evergreen 16 mL Round Bottom Test Tubes\u003c\/strong\u003e are clear polystyrene tubes built for high-throughput sample handling in clinical, research, and teaching labs. Measuring 17 x 100 mm, they suit routine specimen collection, reagent aliquoting, and general benchtop assays where optical clarity and disposable convenience matter.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eRound Bottom Test Tubes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolume\/Size\u003c\/td\u003e\n\u003ctd\u003e16 mL, 17 x 100 mm\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\u003eNatural\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\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin: USA\u003c\/td\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\u003eRoutine specimen and sample collection in clinical workflows\u003c\/li\u003e\n\u003cli\u003eReagent preparation and aliquoting at the bench\u003c\/li\u003e\n\u003cli\u003eSample dilution and serial mixing steps\u003c\/li\u003e\n\u003cli\u003eColorimetric and turbidity readings that benefit from clear PS walls\u003c\/li\u003e\n\u003cli\u003eGeneral incubation and short-term sample storage\u003c\/li\u003e\n\u003cli\u003eTeaching and student laboratory exercises requiring economical tubes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality \u0026amp; Procurement\u003c\/h2\u003e\n\u003cp\u003eOrder from labsupplies.com, an authorized Caplugs® Evergreen dealer shipping from US inventory. These tubes are Made in USA, and each bag carries lot numbers to support traceability for CAP-, CLIA-, and ISO 15189-accredited laboratories. Institutional and grant-funded tiered pricing is available to streamline procurement on larger volumes.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eAre these test tubes sterile?\u003c\/h3\u003e\n\u003cp\u003eNo. These tubes ship non-sterile and are intended for general laboratory use. For applications requiring sterility, validate an in-house sterilization protocol compatible with polystyrene before use.\u003c\/p\u003e\n\u003ch3\u003eCan polystyrene tubes be autoclaved?\u003c\/h3\u003e\n\u003cp\u003eNo. Polystyrene is not autoclavable and will deform under autoclave heat. These tubes are designed as single-use, disposable consumables rather than reusable glassware.\u003c\/p\u003e\n\u003ch3\u003eWhat are the exact dimensions and capacity?\u003c\/h3\u003e\n\u003cp\u003eEach tube measures 17 x 100 mm with a 16 mL nominal capacity and a round bottom profile, fitting standard 17 mm tube racks and many common bench-top holders.\u003c\/p\u003e\n\u003ch3\u003eHow many tubes come in a pack?\u003c\/h3\u003e\n\u003cp\u003eThis is sold as a bag of 1000 tubes (1000\/Bag). The list price shown is per pack, and bulk institutional pricing tiers are available on request.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"Product\",\n  \"name\": \"Caplugs® Evergreen 16 mL Round Bottom Test Tubes, 17 x 100 mm, Polystyrene, Natural, 1000\/Bag\",\n  \"sku\": \"214-2070-010\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"Caplugs® Evergreen\"\n  },\n  \"countryOfOrigin\": \"USA\",\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"price\": \"69.62\",\n    \"priceCurrency\": \"USD\",\n    \"availability\": \"https:\/\/schema.org\/InStock\",\n    \"seller\": {\n      \"@type\": \"Organization\",\n      \"name\": \"labsupplies.com\"\n    }\n  }\n}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are these test tubes sterile?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"No. These tubes ship non-sterile and are intended for general laboratory use. For applications requiring sterility, validate an in-house sterilization protocol compatible with polystyrene before use.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can polystyrene tubes be autoclaved?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"No. Polystyrene is not autoclavable and will deform under autoclave heat. 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