GB/T 4324.18-2012 《Methods for chemical analysis of tungsten - Part 18: Determination of potassium content - Flame atomic absorption spectrometry》 Related products

This standard specifies the method for the determination of potassium content in tungsten powder, tungsten bar, tungsten carbide and other materials by flame atomic absorption spectroscopy (AAS), which is suitable for the determination range of potassium content from 0.0005% to 0.080%. After the sample is analyzed by hydrogen peroxide and ammonia water, the potassium Absorbance is determined by AtomicAbsorption Spectroscopy with chlorides as the deionizing agent. The standard ensures the accuracy of the determination of potassium content and is suitable for the analysis and quality control of tungsten and its compounds.