DIN 38404-6-1984
对水.废水和淤泥进行检查的德国标准方法.物理和物理化学特性参数(C组).氧化还原测定(C6)
German standard methods for the examination of water, waste water and sludge; physical and physico-chemical parameters (group C); determination of the oxidation reduction (redox) potential (C 6)