GB/T 223.57-1987 Methods for chemical analysis of iron,steel and alloy--The extraction-absorption catalytic polarographic method for the determination of cadmium content (English Version)
This standard is applicable to the determination of cadmium content in carbon steel, high, medium and low alloy steel and high temperature alloy. Measuring range: 0.00005 ~ 0.010%. This standard complies with GB1467-78 "General Rules and General Provisions of Standards for Chemical Analysis Methods of Metallurgical Products".
GB/T 223.57-1987 history
1989GB 223.57-1989 Iron and steel and alloy chemical analysis method extraction separation-adsorption catalytic polarography for determination of cadmium content
1987GB/T 223.57-1987 Methods for chemical analysis of iron,steel and alloy--The extraction-absorption catalytic polarographic method for the determination of cadmium content