{"product_id":"duran-automatic-burette-class-as-pellet-type-with-glass-key-and-reservoir-bottle-50-ml","title":"DURAN® Automatic Burette, Class AS, Pellet-Type, with Glass Key and Reservoir Bottle, 50 mL","description":"\u003ch2 style=\"text-align: left;\"\u003eDURAN® Automatic Burette, Class AS, Pellet-Type, with Glass Key and Reservoir Bottle, 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. Automatic burettes with a batch number and accuracy Class AS are supplied with a batch certificate. This certificate documents the mean value obtained from measuring the batch in question, the standard deviation and the day of issue. The batch certificates can also be retrieved online. The batch number consists of four digits. The first two numbers specify the production year, and the following two numbers specify the batch, e.g.: 18.01.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eComplies with ISO 385\u003c\/li\u003e\n\u003cli\u003eMade from borosilicate glass 3.3\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\u003eSide-positioned standard ground stopcock, with glass key and Schellbach stripe\u003c\/li\u003e\n\u003cli\u003eGraduated, main volumes ring marked\u003c\/li\u003e\n\u003cli\u003e30 seconds waiting time\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable id=\"super-product-table\" class=\"table data grouped rwd-table row-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"cat_no\"\u003eCatalog No\u003c\/th\u003e\n\u003cth scope=\"row\" class=\"col label capacity\"\u003eCapacity (mL)\u003c\/th\u003e\n\u003cth scope=\"row\" class=\"col label\"\u003eHeight h (mm)\u003c\/th\u003e\n\u003cth scope=\"row\" class=\"col label\"\u003eTolerance (mL)\u003c\/th\u003e\n\u003cth scope=\"row\" class=\"col label\"\u003eGraduation Intervals (mL)\u003c\/th\u003e\n\u003cth scope=\"row\" class=\"col label\"\u003eDescription\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\"\u003e243183656\u003c\/td\u003e\n\u003ctd class=\"col data\" data-th=\"Capacity (mL)\"\u003e50\u003c\/td\u003e\n\u003ctd class=\"col data\" data-th=\"Height h (mm)\"\u003e930\u003c\/td\u003e\n\u003ctd class=\"col data\" data-th=\"Tolerance (mL)\"\u003e+\/- 0.05\u003c\/td\u003e\n\u003ctd class=\"col data\" data-th=\"Graduation Intervals (mL)\"\u003e0.1\u003c\/td\u003e\n\u003ctd class=\"col data\" data-th=\"Description\"\u003e-\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":40958021828666,"sku":"DWK243183656","price":937.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7785\/files\/DWK243183656.jpg?v=1753852951","url":"https:\/\/www.msesupplies.com\/products\/duran-automatic-burette-class-as-pellet-type-with-glass-key-and-reservoir-bottle-50-ml","provider":"MSE Supplies","version":"1.0","type":"link"}