This standard is applicable to the determination of bismuth content in metallic chromium, the determination range: 0.0003~0.0015%. This standard complies with GB 1467-78 "General Rules and General Provisions of Standards for Chemical Analysis Methods of Metallurgical Products".
GB/T 4702.12-1987 history
1987GB/T 4702.12-1987 Methods for chemical analysis of chromium metal--The oscilloplarographic method for the determination of bismuth content