This standard specifies a method for the determination of bismuth content in tungsten concentrates using flame atomic absorption spectroscopy (AAS), suitable for the determination of bismuth content between 0.01% and 0.30%. The method calculates the bismuth content by analyzing the sample for muriatic acid, perchloric acid and nitric acid, followed by measurement of bismuth Absorbance at 223.1 nm wavelength. The standard provides a reliable analytical method for the accurate determination of trace bismuth in tungsten concentrates, ensuring the effectiveness of product quality control.
| Status | Abolish |
|---|---|
| CCS | H63 | ICS | 77.120.99 |
| Release Date | 2008-03-31 00:00:00 | Implementation Date | 2008-09-01 00:00:00 |