GB/T 4702.11-1985 Methods for chemical analysis of chromium metal--The alizarin violet spectrophotometric method for the determination of tin content (English Version)
This standard applies to the determination of the amount of tin in metallic chromium. Measuring range: 0.0005~0.0020%.
GB/T 4702.11-1985 history
1985GB/T 4702.11-1985 Methods for chemical analysis of chromium metal--The alizarin violet spectrophotometric method for the determination of tin content