worked in as described in the Instruction Sheet MB0021 Furthermore platinized titanium anodes are recommended . Care has to be taken that they are completely covered with a lead dioxide film(brown-black layer). Only under this condition is Cr 3+oxidised to Cr6+.The lead dioxide film is obtained using oneormore PbSn anodes together with the platinized titanium anodesorby addition of ANKOR Addition Solution PTA (see Technical Data Sheet).与基于硫酸或混合镀铬溶液的使用寿命相比，铅合金阳极的使用寿命