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Chinese National Standard Category: Rare metal ore |
English Title: | Methods for chemical analysis of tantalite,columbite concentrate—Part 2:Determination of titanium dioxide content—Diantipyrinyl methane spectrophotometric method |
Chinese Title: | 钽铁、铌铁精矿化学分析方法 第2部分:二氧化钛量的测定 双安替吡啉甲烷分光光度法 |
Standard No.: | YS/T 358.2-2011 |
Category No.: | D43 |
Issued by: | Ministry of Industry and Information Technology |
Issued on: | 2011-12-20 |
Implemented on: | 2012-7-1 |
Status: | valid |
Superseded by: | |
Superseded on: | |
Abolished on: | |
Superseding: | YS/T 358-1994 |
Word Count: | 4000 words |
Similar Standards: | GB/T 18114.4-2000 GB/T 18114.3-2000 YS/T 235-2016 YS/T 231-2015 YB/T 159.6-2015 YS/T 300-2015 YS/T 947-2013 YS/T 358.12-2012 GB/T 27682-2011 YS/T 358.4-2011 YS/T 254.4-2011 YS/T 358.3-2011 YS/T 254.2-2011 YS/T 358.10-2011 YS/T 254.3-2011 YS/T 254.1-2011 YS/T 358.1-2011 YS/T 358.5-2011 YS/T 358.7-2011 YS/T 262-2011 |
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