GB/T 4324.28-2012 Methods for chemical analysis of tungsten.Part 28:Determination of molybdenum content.The thioyanate spectrophotometry (English Version)
This part of GB/T 4324 specifies the determination method of molybdenum in tungsten powder, tungsten bar, tungsten trioxide, blue tungsten, purple tungsten, tungstic acid, ammonium paratungstate. This part is applicable to tungsten powder, tungsten bar, tungsten trioxide, Determination of molybdenum content in blue tungsten, violet tungsten, tungstic acid and ammonium paratungstate, the determination range is 0.001 5%~0.35%,
GB/T 4324.28-2012 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