Micro Burettes, PTFE Key
DURAN® burettes are made of highly chemical resistant borosilicate glass 3.3 and are only used for titration. The quantity of liquid required for titration, which is unknown beforehand, can be precisely read off once the reaction is complete.Class AS, with Schellbach stripe. With straight standard taper joint stopcock and PTFE key, with PTFE intermediate stopcock, blue inscription. With certificate of conformity and batch certificate.