GB/T 4324.5-2012 Methods for chemical analysis of tungsten.Part 5:Determination of arsenic content.Hydrogenate atomic absorption spectrometry (English Version)
This part of GB/T 4324 specifies the determination method of arsenic content in tungsten powder, tungsten bar, tungsten trioxide, blue tungsten, purple tungsten, tungsten carbide, tungstic acid, ammonium metatungstate and ammonium paratungstate. This part is applicable to the determination of arsenic content in tungsten powder, tungsten bar, tungsten trioxide, blue tungsten, purple tungsten, tungsten carbide, tungstic acid, ammonium metatungstate and ammonium paratungstate. The measuring range is 0.000 05%~0.020%.
GB/T 4324.5-2012 history
2012GB/T 4324.5-2012 Methods for chemical analysis of tungsten.Part 5:Determination of arsenic content.Hydrogenate atomic absorption spectrometry
1984GB/T 4324.5-1984 Methods for chemical analysis of tungsten--The molybdenum blue photometric method for the determination of arsenic content
GB/T 4324.5-2012 Methods for chemical analysis of tungsten.Part 5:Determination of arsenic content.Hydrogenate atomic absorption spectrometry was changed to GB/T 4324.2-2023 Methods of chemical analysis of tungsten Part 2: Determination of bismuth and arsenic content.