DESCRIPTION
Combined gold ring electrode with a pH glass membrane as reference electrode, installation length = 30.8 cm, narrowed to a diameter of 6.4 mm.This maintenance-free electrode is well suited for redox titrations when the pH value remains constant, e.g.: determination of the chemical oxygen demand (COD, ferrometry)determination of penicillin and ampicillinfor titrations using Hg(NO3)2for titrations in presence of chromium or ironThis electrode is stored in deion. water.