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| Chinese National Standard Category: Radioactive metal ore |
| English Title: | Methods for chemical analysis of tungsten concentrates--The chlorosulphophenol S photometric method for the determination niobium content--The butylrhodamine B extraction photometric method for the determinati |
| Chinese Title: | 钨精矿化学分析方法 氯代磺酚S光度法测定铌量丁基罗丹明B萃取光度法测定钽量 |
| Standard No.: | GB/T 6150.9-1985 |
| Category No.: | D45 |
| Issued by: | China Non-Ferrous Metals Industry Association |
| Issued on: | 1985-06-21 |
| Implemented on: | 1986-6-1 |
| Status: | superseded |
| Superseded by: | GB/T 6150.7-2008 Methods for chemical analysis of tungsten concentrates - Determination of tantalum content and niobium content - Inductively coupled plasma emission spectrometry and spectrophotometry |
| Superseded on: | |
| Abolished on: | |
| Superseding: | YB 602 12 -1978 |
| Word Count: | 2000 words |
| Similar Standards: | GB/T 17672-1999 GB/T 13070-1991 GB/T 6150.14-1985 GB/T 6150.19-1985 GB/T 6150.13-1985 GB/T 6150.15-1985 GB/T 6150.8-1985 GB/T 6150.12-1985 GB/T 6150.9-1985 GB/T 6150.1-1985 GB/T 6150.16-1985 GB/T 6150.17-1985 GB/T 6150.5-1985 GB 2825-1981 |
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