GB/T 4324.9-2012 Active
GB/T 4324.9-2012 Methods for chemical analysis of tungsten—Part 9:Determination of cadmium content—Inductively-coupled plasma atomic emission spectrometry and flame atomic absorption spectrometry
Abstract
This part of GB/T 4324 specifies the determination methods for the cadmium content in tungsten powder, tungsten bars, tungsten carbide, tungsten trioxide, tungstic acid, blue tungsten, purple tungsten, ammonium para-tungstate, and ammonium metatungstate.
This part is applicable to the determination of cadmium content in tungsten powder, tungsten bars, tungsten carbide, tungsten trioxide, tungstic acid, blue tungsten, purple tungsten, ammonium para-tungstate, and ammonium metatungstate. Method I has a determination range of 0.0002% to 0.030%; Method II has a determination range of 0.0004% to 0.0030%.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 4324.9-2012 |
| CCS | Rare high-melting-point metals and their alloys |
| ICS | Other non-ferrous metals and their alloys |
| Implement Date | 2013-10-01 |