{"product_id":"duran-burette-class-as-with-schellbach-stripe-and-ptfe-key-50-ml","title":"DURAN® Burette, Class AS, with Schellbach Stripe and PTFE Key, 50 mL","description":"\u003ch2 style=\"text-align: left;\"\u003eDURAN® Burette, Class AS, with Schellbach Stripe and PTFE Key, 50 mL\u003c\/h2\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cb\u003e\u003cspan style=\"color: red;\"\u003eBuy \u003c\/span\u003e\u003c\/b\u003e\u003cb\u003e\u003cspan style=\"color: red; mso-fareast-language: ZH-CN;\"\u003eDWK Life Sciences\u003c\/span\u003e\u003cspan style=\"color: red;\"\u003e products from MSE Supplies at the best value.\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe original DURAN® burettes are made of highly chemically resistant borosilicate glass 3.3. Their precise scaling makes them particularly suitable for titrimetric purposes. The amount of liquid required for titration, but previously unknown, can be read off very accurately after the reaction has been completed. Adjustment is made to drain (\"Ex\") for + 20 °C reference temperature. This means that the quantities can be taken exactly according to the scale, since the adhesion of the liquid to the glass was taken into account during calibration. The tolerances for the volume correspond to the error limits of ISO and DIN. DURAN® burettes are available with glass or PTFE keys. Unlike glass keys, PTFE keys do not have to be greased, which simplifies work in the laboratory.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eComplies with ISO 385\u003c\/li\u003e\n\u003cli\u003eManufactured from borosilicate glass 3.3\u003c\/li\u003e\n\u003cli\u003eThe quantity of liquid required for titration, which is unknown beforehand, can be precisely read off once the reaction is complete.\u003c\/li\u003e\n\u003cli\u003eThanks to the precise scale they are ideal for titration.\u003c\/li\u003e\n\u003cli\u003eUnlike the glass keys, the PTFE keys need not be greased, which makes work in the laboratory easier.\u003c\/li\u003e\n\u003cli\u003eCalibration is based on the poured out volume (“Ex”) at a + 20 °C reference temperature.\u003c\/li\u003e\n\u003cli\u003eThe volume content tolerances conform to accuracy class AS.\u003c\/li\u003e\n\u003cli\u003eWith Schellbach stripe and circular ring graduations\u003c\/li\u003e\n\u003cli\u003e30 seconds waiting time\u003c\/li\u003e\n\u003cli\u003eFired-on, highly durable blue print\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable class=\"table data grouped rwd-table row-table\" id=\"super-product-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"cat_no\"\u003eCatalog No\u003c\/th\u003e\n\u003cth class=\"col label capacity\" scope=\"row\"\u003eCapacity (mL)\u003c\/th\u003e\n\u003cth class=\"col label\" scope=\"row\"\u003eHeight h (mm)\u003c\/th\u003e\n\u003cth class=\"col label\" scope=\"row\"\u003eTolerance (mL)\u003c\/th\u003e\n\u003cth class=\"col label\" scope=\"row\"\u003eGraduation Intervals (mL)\u003c\/th\u003e\n\u003cth class=\"row-quantity\"\u003ePack Size\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr class=\"item product product-item related-available hover-highlight\"\u003e\n\u003ctd data-th=\"Catalog No\"\u003e243303604\u003c\/td\u003e\n\u003ctd data-th=\"Capacity (mL)\" class=\"col data\"\u003e50\u003c\/td\u003e\n\u003ctd data-th=\"Height h (mm)\" class=\"col data\"\u003e820\u003c\/td\u003e\n\u003ctd data-th=\"Tolerance (mL)\" class=\"col data\"\u003e+\/- 0.05\u003c\/td\u003e\n\u003ctd data-th=\"Graduation Intervals (mL)\" class=\"col data\"\u003e0.1\u003c\/td\u003e\n\u003ctd data-th=\"Quantity\"\u003eCase of 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"DWK Life Sciences","offers":[{"title":"50mL","offer_id":40958030544954,"sku":"DWK243303604","price":492.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7785\/files\/DWK243303604.jpg?v=1753853409","url":"https:\/\/www.msesupplies.com\/products\/duran-burette-class-as-with-schellbach-stripe-and-ptfe-key-50-ml","provider":"MSE Supplies","version":"1.0","type":"link"}