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| International Standard Category: Other non-ferrous metals and their alloys |
GB/T 4324.26-2012 Methods for chemical analysis of tungsten - Part 26: Determination of nitrogen content - Pulse heating inert gas fusion-thermal conductive method and the Nessler reagent spectrophotometry
钨化学分析方法 第26部分：氮量的测定 脉冲加热惰气熔融-热导法和奈氏试剂分光光度法 ;
| Category No.: | 77.120.99 | Valid Status: | valid |
| Issued Organization: | AQSIQ; SAC | Issued Date: | 2012-12-31 |
| Implemented Date: | 2013-10-1 | Abolished Date: | |
| Superseded Standard.: | Superseded Date: |
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