GB/T 4324.28-1984 Methods for chemical analysis of tungsten--The thiocyanate photometric method for the determination of molybdenum content (English Version)
This standard is applicable to the determination of molybdenum content in tungsten powder, tungsten bar, tungsten trioxide, tungstic acid and ammonium paratungstate. Measuring range: 0.0015 to 0.35%.
GB/T 4324.28-1984 history
2012GB/T 4324.28-2012 Methods for chemical analysis of tungsten.Part 28:Determination of molybdenum content.The thioyanate spectrophotometry
1984GB/T 4324.28-1984 Methods for chemical analysis of tungsten--The thiocyanate photometric method for the determination of molybdenum content