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| International Standard Category: Other non-ferrous metals and their alloys |
GB/T 12690.18-2017 Chemical analysis methods for non-rare earth impurity of rare earth metals and their oxides-Part 18:Determination of zirconium content
稀土金属及其氧化物中非稀土杂质化学分析方法 第18部分：锆量的测定 ;
| Category No.: | 77.120.99 | Valid Status: | valid |
| Issued Organization: | AQSIQ | Issued Date: | 2017-10-14 |
| Implemented Date: | 2018-5-1 | Abolished Date: | |
| Superseded Standard.: | Superseded Date: |
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