This standard specifies a method for the determination of copper content in tantalum, niobium and their hydroxides by flame atomic absorption spectroscopy (AAS), applicable to the determination range of 0.0002% to 0.060% copper content. After dissolving the sample with hydrofluoric acid and nitric acid, the method uses AtomicAbsorption Spectroscopy to determine the copper content at a wavelength of 324.7 nm. The standard provides a standardized analytical method for the accurate detection of copper content, ensuring the accuracy and repeatability of the test results.
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 | H14 | ICS | 77.120.99 |
| Release Date | 2019-06-04 00:00:00 | Implementation Date | 2020-01-01 00:00:00 |
