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| International Standard Category: Cadmium, cobalt and their alloys |
GB/T 7739.1-1987 Methods for chemical analysis of gold concentrates; The fire-assaying method for the determination of gold and silver content
金精矿化学分析方法 火试金法测定金量和银量 ;
| Category No.: | 77.120.70 | Valid Status: | superseded |
| Issued Organization: | NDRC | Issued Date: | 1987-05-12 |
| Implemented Date: | 1988-1-1 | Abolished Date: | 2007-11-01 |
| Superseded Standard.: | GB/T 7739.1-2007 Methods for chemical analysis of gold concentrates—Part 1:Determination of gold and silver contents |
Superseded Date: | 2007-11-1 |
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