{"product_id":"class-a-volumetric-flasks-batch-certified","title":"Class A Volumetric Flasks with Batch Certification, Pack of Two","description":"\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eClass A volumetric accuracy for repeatable solution concentrations, certified batch by batch:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eClass A borosilicate glass flasks manufactured to ISO 1042 for accurate, reproducible solution preparation\u003c\/li\u003e\n\u003cli\u003ePermanent etched graduation line on the narrow neck reduces meniscus reading error, calibrated to contain (TC) at 20°C\u003c\/li\u003e\n\u003cli\u003eGround glass neck joint with plastic stopper gives a close-fitting seal that limits solvent evaporation during storage or mixing\u003c\/li\u003e\n\u003cli\u003eBorosilicate glass withstands thermal shock and resists acids, neutral solutions and most chemical reagents\u003c\/li\u003e\n\u003cli\u003eStable base to height ratio for secure positioning on the bench\u003c\/li\u003e\n\u003cli\u003eSupplied with batch certification\u003c\/li\u003e\n\u003cli\u003ePack of two\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003eWhere a measuring cylinder gives an approximate reading, a Class A volumetric flask is made to prepare one exact volume of solution at 20°C. These borosilicate glass flasks are manufactured to ISO 1042 for laboratories that need accurate solution concentrations and reproducible results, and every pack is supplied with batch certification.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eA sharp, permanent graduation line is etched onto the narrow neck, which keeps the meniscus easy to read and reduces reading error. The flask is calibrated to contain (TC) at the standard laboratory reference temperature of 20°C. The stable base to height ratio keeps it upright and secure on the bench while you fill and adjust to the line.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThe ground glass neck joint and plastic stopper form a close-fitting seal that limits solvent evaporation during storage or mixing. Borosilicate glass withstands thermal shock and resists acids, neutral solutions and most chemical reagents.\u003cbr\u003e\u003cbr\u003eEach pack contains two flasks. For other glassware for the laboratory, see our \u003ca href=\"https:\/\/teknomek.co.uk\/collections\/laboratory-glassware\" title=\"Laboratory Glassware\"\u003elaboratory glassware range.\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Factored","offers":[{"title":"10ml","offer_id":57637493997941,"sku":"LEGW-VFCAB10","price":15.0,"currency_code":"GBP","in_stock":true},{"title":"50ml","offer_id":57637740740981,"sku":"LEGW-VFCAB50","price":19.0,"currency_code":"GBP","in_stock":true},{"title":"100ml","offer_id":57637740773749,"sku":"LEGW-VFCAB100","price":25.0,"currency_code":"GBP","in_stock":true},{"title":"500ml","offer_id":57637740806517,"sku":"LEGW-VFCAB500","price":45.0,"currency_code":"GBP","in_stock":true},{"title":"1000ml","offer_id":57637740839285,"sku":"LEGW-VFCAB1000","price":85.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0751\/2306\/5148\/files\/130-A-10_2_003.jpg?v=1791534378","url":"https:\/\/teknomek.co.uk\/products\/class-a-volumetric-flasks-batch-certified","provider":"Teknomek Ltd","version":"1.0","type":"link"}