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| Chinese National Standard Category: Non-ferrous metal ores in general |
| English Title: | Methods for chemical analysis of tungsten ores and molybdenum ores -- Part 20：Determination of niobium, tantalum, zirconium, hafnium and 15 rare earth elements content -- Inductively coupled plasma mass spectrometry |
| Chinese Title: | 钨矿石、钼矿石化学分析方法 第20部分：铌、钽、锆、铪及15个稀土元素量的测定 电感耦合等离子体质谱法 |
| Standard No.: | GB/T 14352.20-2021 |
| Category No.: | D40 |
| Issued by: | SAMR; SAC |
| Issued on: | 2021-03-09 |
| Implemented on: | 2021-10-1 |
| Status: | valid |
| Superseded by: | |
| Superseded on: | |
| Abolished on: | |
| Superseding: | |
| Word Count: | 7000 words |
| Similar Standards: | DZ/T 0393.4-2021 DZ/T 0393.3-2021 DZ/T 0393.2-2021 DZ/T 0393.1-2021 T/CGA 44-2024 DB32/T 4594-2023 GB/T 42630-2023 GB/T 42439-2023 GB/T 14352.20-2021 GB/T 14352.19-2021 GB/T 14352.22-2021 GB/T 14352.21-2021 GB/T 14353.21-2019 GB/T 14353.20-2019 GB/T 14353.19-2019 DB37/T 3302-2018 GB/T 14352.4-2010 GB/T 14352.6-2010 GB/T 14352.17-2010 SN/T 0487-1995 |
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