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| International Standard Category: Cadmium, cobalt and their alloys |
GB/T 2592.3-1981 Thallium;Determination of mercury content;Dithizone-carbon tetrachloride extraction photometric method
铊中汞量的测定(双硫腙四氯化碳萃取吸光光度法) ;
| Category No.: | 77.120.70 | Valid Status: | superseded |
| Issued Organization: | chinania | Issued Date: | 1981-06-07 |
| Implemented Date: | 1982-3-1 | Abolished Date: | 2007-09-29 |
| Superseded Standard.: | YS/T 569.3-2006 Thallium - Determination of mercury content - Dithizone-carbon tetrachloride extraction photometric method |
Superseded Date: | 2006-10-11 |
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