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| International Standard Category: Lead, zinc, tin and their alloys |
YS/T 248.6-2007 Methods for chemical analysis of crude lead-Determination of gold and silver content-Fire-assaying method
粗铅化学分析方法 金量和银量的测定 火试金法 ;
| Category No.: | 77.120.60 | Valid Status: | valid |
| Issued Organization: | NDRC | Issued Date: | 2007-04-13 |
| Implemented Date: | 2007-10-1 | Abolished Date: | |
| Superseded Standard.: | Superseded Date: |
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