GB/T 4324.2-2012 《Methods for chemical analysis of tungsten - Part 2: Determination of bismuth content - Hydrogenate atomic absorption spectrometry》 Related products

This standard specifies a method for the determination of bismuth content in tungsten powder, tungsten bar, tungsten trioxide, blue tungsten, purple tungsten, tungsten carbide and other materials by hydride atomic absorption spectroscopy (AAS), which is applicable to the bismuth content in the range of 0.00003% to 0.020%. This method separates bismuth from Miscellaneous substances through different sample analysis methods, and finally determines its content by AtomicAbsorption Spectroscopy. The standard provides reliable technical support for the determination of trace bismuth in tungsten and its compounds, and is suitable for quality control and analytical testing.