Burette with screw type needle valve PTFE stopcock, Schellbach type, Class A, 50

Manufactured with top quality 3.3 borosilicate glass and calibrated to deliver (TD, Ex). The batch number is printed on each burette. In compliance with ISO 385, USP and ''Eichordnung'' (the German Federal Weights and Measures Regulations). The conformity with ''Eichordnung'' is certified through the official ''DE-M (year)'' sign on each burette. Batch certificate included (to be downloaded free of charge here)