This standard specifies a method for the determination of sodium content in materials such as tungsten powder, tungsten bar, tungsten carbide, etc. by flame atomic absorption spectroscopy (AAS), suitable for sodium content in the range of 0.0003% to 0.080%. Absorbance of sodium is determined on AtomicAbsorption Spectroscopy after the sample has passed hydrogen peroxide and ammonia analysis. This standard ensures the accuracy and accuracy of the determination of sodium content in tungsten and its compounds, and is suitable for chemical analysis and quality control.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active | ||
|---|---|---|---|
| CCS | H63 | ICS | 77.120.99 |
| Release Date | 2012-12-31 00:00:00 | Implementation Date | 2013-10-01 00:00:00 |
