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| International Standard Category: Copper and copper alloys |
YS/T 990.9-2014 Methods for chemical analysis of copper matte—Part 9:Determination of iron content—Potassium dichromate titration method
冰铜化学分析方法 第9部分：铁量的测定 重铬酸钾滴定法 ;
| Category No.: | 77.120.30 | Valid Status: | valid |
| Issued Organization: | MIIT | Issued Date: | 2014-10-14 |
| Implemented Date: | 2015-4-1 | Abolished Date: | |
| Superseded Standard.: | Superseded Date: |
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