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| International Standard Category: Cadmium, cobalt and their alloys |
GB/T 4375.1-1984 Methods for chemical analysis of gallium;The 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline photometric method for the determination of copper content
镓化学分析方法 2,9-二甲基-4,7-二苯基-1,10-二氮杂菲光度法测定铜量 ;
| Category No.: | 77.120.70 | Valid Status: | superseded |
| Issued Organization: | chinania | Issued Date: | 1984-04-30 |
| Implemented Date: | 1985-4-1 | Abolished Date: | |
| Superseded Standard.: | YS/T 520.1-2006 Methods for chemical analysis of gallium The 2 9-dimethy-4 7-diphenyl-1 10-phenanthroline photometric method for the determination of copper content |
Superseded Date: | 2006-10-11 |
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