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| International Standard Category: Other non-ferrous metals and their alloys |
GB/T 6150.13-2008 Methods for chemical analysis of tungsten concentrates—Determination of arsenic content—Hydride reduction atomic absorption spectrometry and the silver diethyldithiocarbamate(DDTC-Ag) photometry
钨精矿化学分析方法 砷量的测定 氢化物原子吸收光谱法和DDTC－Ag分光光度法 ;
| Category No.: | 77.120.99 | Valid Status: | superseded |
| Issued Organization: | AQSIQ; SAC | Issued Date: | 2008-06-17 |
| Implemented Date: | 2008-12-1 | Abolished Date: | 2023-02-01 |
| Superseded Standard.: | GB/T 6150.13-2022 Methods for chemical analysis of tungsten concentrates—Part 13：Determination of arsenic content—Atomic fluorescence spectrometry and the silver diethyldithiocarbamate（DDTC-Ag）spectrophotometry |
Superseded Date: | 2023-2-1 |
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