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
GB/T 4324.2-2023 has been changed from GB/T 4324.5-2012 Methods for chemical analysis of tungsten.Part 5:Determination of arsenic content.Hydrogenate atomic absorption spectrometry.