GB/T 4324.2-1984 Methods for chemical analysis of tungsten--The potassium iodide-brucine photometric method for the determination of bismuth content (English Version)
This standard applies to the determination of bismuth content in tungsten powder, tungsten bar, tungsten trioxide, tungstic acid and ammonium paratungstate. Measuring range: 0.00008 ~ 0.0040%.
GB/T 4324.2-1984 history
2023GB/T 4324.2-2023 Methods of chemical analysis of tungsten Part 2: Determination of bismuth and arsenic content
2012GB/T 4324.2-2012 Methods for chemical analysis of tungsten.Part 2:Determination of bismuth content.Hydrogenate atomic absorption spectrometry
1984GB/T 4324.2-1984 Methods for chemical analysis of tungsten--The potassium iodide-brucine photometric method for the determination of bismuth content