Manufactured from pre-vacuum calibrated borosilicate 3.3 tubing according to ISO 385 standards. Calibrated according to DIN/ISO Class “AS” standard. Featured with a (“DE-M”) conformity mark according to German federal weights and measures regulations. Individual calibration carried out by automatic robots eliminate possible deviations from nominal values. Conformity mark and batch number printed on the body surface. Batch certificate can be downloaded from website. Supplied with an interchangeable PTFE stopcock which does not require greasing at all. Stopcock guarantees the best drop control. Identical keys need no “matching the pairs” during cleaning. Inscriptions and nominal values on clear burettes are printed with blue enamel. Inscriptions and nominal values on amber burettes are printed with white enamel. Schellbach stripe featured with a narrow blue band which is at the center of the larger white band offers easier and accurate observation of the meniscus line.

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