GB/T 4324.22-2012 Methods for chemical analysis of tungsten.Part 22:Determination of manganese content.Inductively coupled plasma atomic emission spectrometry (English Version)
This part of GB/T 4324 specifies the determination method of manganese content in tungsten powder, tungsten bar, tungsten trioxide, blue tungsten, purple tungsten, tungsten carbide, tungstic acid, ammonium metatungstate, ammonium paratungstate. This part applies to tungsten powder , tungsten bar, tungsten trioxide, blue tungsten, purple tungsten, tungsten carbide, tungstic acid, ammonium metatungstate, ammonium paratungstate, the determination of manganese content, the determination range is 0.000 1%~0.050%,
GB/T 4324.22-2012 history
2012GB/T 4324.22-2012 Methods for chemical analysis of tungsten.Part 22:Determination of manganese content.Inductively coupled plasma atomic emission spectrometry
1984GB/T 4324.22-1984 Methods for chemical analysis of tungsten--The formaldoxime photometric method for manganese content