Photography. Determination of residual thiosulfate and other related chemicals in processed photographic materials. Methods using iodine-amylose, methylene blue and silver sulfide best-seller Deoxidation

Deoxidation

Protective earth current

It covers the material

This is a full revision of the standard to align it with BS 7121-1:2016 and address the causes of incidents that have occurred since the last edition was published

Their presence is confirmed by the increase in volume conductivity of the liquid extract and the test is considered to have particular significance when applied to electrical insulating materials which are to be immersed in coolants or impregnates

Photography. Determination of residual thiosulfate and other related chemicals in processed photographic materials. Methods using iodine-amylose, methylene blue and silver sulfide best-seller Deoxidation1 Scope 1. 1 This International Standard specifies test methods for the determination of residual thiosulfate and other related chemicals in processed photographic materials.