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| International Standard Category: Other non-ferrous metals and their alloys |
YS/T 226.4-2009 Methods for chemical analysis of selenium—Part 4:Determination of mercury content—Dithizone-carbon tetrachloride titrated colorimetric-method
硒化学分析方法 第4部分：汞量的测定 双硫腙-四氯化碳滴定比色法 ;
| Category No.: | 77.120.99 | Valid Status: | valid |
| Issued Organization: | Ministry of Industry and Information Technology | Issued Date: | 2009-12-04 |
| Implemented Date: | 2010-6-1 | Abolished Date: | |
| Superseded Standard.: | Superseded Date: |
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