{"product_id":"globe-scientific-vial-9040000cap-as-n","title":"Globe Scientific DiamondPure Aluminum Seal, 20mm Crimp, PTFE\/Silicone Septum","description":"\u003ch2\u003eDiamondPure Aluminum Seal Overview\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eGlobe Scientific DiamondPure Aluminum Seal\u003c\/strong\u003e (SKU 9040000CAP-AS-N) is a 20mm finish crimp closure engineered for 6mL, 10mL, 20mL, and 27mL headspace vials. Each seal pairs an aluminum cap with a 2.5mm PTFE\/clear silicone septum, giving laboratories a dependable barrier for sample containment.\u003c\/p\u003e\n\u003cp\u003eCrimp closures deliver a tight mechanical seal once applied with a 20mm crimping tool. PTFE facing on the septum resists solvents and limits sample interaction, while the clear silicone backing supports needle penetration and resealing during analysis. Technicians can rely on consistent sealing across compatible vial volumes.\u003c\/p\u003e\n\u003cp\u003eSupplied in bags of 100, this seal fits routine headspace and chromatography workflows that demand a secure 20mm finish. Choose it where reproducible closure performance matters for sample integrity.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eAttribute\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eGlobe Scientific\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Line\u003c\/td\u003e\n\u003ctd\u003eDiamondPure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eAluminum Seal, Crimp Closure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003e20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Vials\u003c\/td\u003e\n\u003ctd\u003e6mL, 10mL, 20mL, 27mL Headspace Vial\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeptum\u003c\/td\u003e\n\u003ctd\u003ePTFE\/Clear Silicone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeptum Thickness\u003c\/td\u003e\n\u003ctd\u003e2.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eContact for specification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUnit of Measure\u003c\/td\u003e\n\u003ctd\u003eBag of 100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaster Case Quantity\u003c\/td\u003e\n\u003ctd\u003e1000 (10 bags)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eAvailable Configurations\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003cth\u003eDescription\u003c\/th\u003e\n\u003cth\u003ePack\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e9040000CAP-AS-N\u003c\/td\u003e\n\u003ctd\u003eDiamondPure Aluminum Seal for 6\/10\/20\/27mL Headspace Vial, 20mm Finish, PTFE\/Clear Silicone, 2.5mm\u003c\/td\u003e\n\u003ctd\u003eBag of 100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e9040000CAP-AS-N\u003c\/td\u003e\n\u003ctd\u003eMaster case\u003c\/td\u003e\n\u003ctd\u003e1000 (10 bags)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eLaboratory Applications\u003c\/h2\u003e\n\u003cp\u003eHeadspace gas chromatography depends on a reliable seal between vial and instrument. These 20mm crimp seals lock samples in compatible headspace vials, supporting volatile organic analysis, residual solvent testing, and environmental screening where sample loss undermines results.\u003c\/p\u003e\n\u003cp\u003ePTFE\/clear silicone septa suit applications that require needle access followed by resealing. Quality control labs, pharmaceutical analysts, and food and beverage testing teams use crimp-sealed vials for stable storage and consistent autosampler injection across batches.\u003c\/p\u003e\n\u003ch2\u003eOrdering \u0026amp; Bulk Pricing\u003c\/h2\u003e\n\u003cp\u003eEach unit ships as a bag of 100 seals, with a master case holding 1000 seals across 10 bags. Procurement teams ordering at case volume can standardize closure inventory for high-throughput labs. Request institutional purchasing, quotes, and bulk terms through LabSupplies.com.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhich vials fit this aluminum seal?\u003c\/h3\u003e\n\u003cp\u003eThis seal is designed for 6mL, 10mL, 20mL, and 27mL headspace vials with a 20mm crimp finish.\u003c\/p\u003e\n\u003ch3\u003eWhat septum material is included?\u003c\/h3\u003e\n\u003cp\u003eEach seal carries a 2.5mm PTFE\/clear silicone septum, combining solvent-resistant PTFE facing with a clear silicone backing.\u003c\/p\u003e\n\u003ch3\u003eHow many seals come in a bag?\u003c\/h3\u003e\n\u003cp\u003eSeals are packaged in bags of 100, and a full master case contains 1000 seals across 10 bags.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"Product\",\"name\":\"Globe Scientific DiamondPure Aluminum Seal, 20mm Crimp, PTFE\/Silicone Septum\",\"sku\":\"9040000CAP-AS-N\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Globe Scientific\"},\"description\":\"DiamondPure Aluminum Seal for 6mL, 10mL, 20mL or 27mL Headspace Vial, Crimp Closure, 20mm Finish, PTFE\/Clear Silicone, 2.5mm.\",\"url\":\"https:\/\/labsupplies.com\/products\/globe-scientific-vial-9040000cap-as-n\",\"offers\":{\"@type\":\"Offer\",\"priceCurrency\":\"USD\",\"price\":\"78\",\"url\":\"https:\/\/labsupplies.com\/products\/globe-scientific-vial-9040000cap-as-n\",\"availability\":\"https:\/\/schema.org\/InStock\"}}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Which vials fit this aluminum seal?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"This seal is designed for 6mL, 10mL, 20mL, and 27mL headspace vials with a 20mm crimp finish.\"}},{\"@type\":\"Question\",\"name\":\"What septum material is included?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Each seal carries a 2.5mm PTFE\/clear silicone septum, combining solvent-resistant PTFE facing with a clear silicone backing.\"}},{\"@type\":\"Question\",\"name\":\"How many seals come in a bag?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Seals are packaged in bags of 100, and a full master case contains 1000 seals across 10 bags.\"}}]}\n\u003c\/script\u003e","brand":"Globe Scientific","offers":[{"title":"Default Title","offer_id":47974121210088,"sku":"9040000CAP-AS-N","price":78.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/file_d71a14e0-00db-4137-ba60-c195930583df.jpg?v=1769359560","url":"https:\/\/labsupplies.com\/products\/globe-scientific-vial-9040000cap-as-n","provider":"LabSupplies.com","version":"1.0","type":"link"}