GB/T 4325.7-1984 Methods for chemical analysis of molybdenum--The 5-Cl-PADAB photometric method for the determination of cobalt content (English Version)
This standard is applicable to the determination of cobalt content in molybdenum powder, molybdenum bar, aluminum trioxide and ammonium molybdate. Measuring range: 0.00025 to 0.012%.
GB/T 4325.7-1984 history
2013GB/T 4325.8-2013 Methods for chemical analysis of molybdenum.Part 8:Determination of cobalt content.5-CI-PADAB spectrophotometry and flame atomic absorption spectrometry
1984GB/T 4325.7-1984 Methods for chemical analysis of molybdenum--The 5-Cl-PADAB photometric method for the determination of cobalt content
GB/T 4325.7-1984 Methods for chemical analysis of molybdenum--The 5-Cl-PADAB photometric method for the determination of cobalt content was changed to GB/T 4325.8-2013 Methods for chemical analysis of molybdenum.Part 8:Determination of cobalt content.5-CI-PADAB spectrophotometry and flame atomic absorption spectrometry.