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Chinese National Standard Category: Iron ore |
English Title: | Methods for chemical analysis of iron ores; The arsenazo 3 photometric method for the determination of rare earth elements content |
Chinese Title: | 铁矿石化学分析方法 偶氮胂Ⅲ光度法测定稀土总量 |
Standard No.: | GB/T 6730.24-1986 |
Category No.: | D31 |
Issued by: | China Steel Industry Association |
Issued on: | 1986-08-19 |
Implemented on: | 1987-8-1 |
Status: | superseded |
Superseded by: | GB/T 6730.24-2006 Iron ores - Determination of total rare earth contents - Chlorophosphonazo mA spectrophotometric method |
Superseded on: | 2007-2-1 |
Abolished on: | |
Superseding: | GB 1372-1978 |
Word Count: | 2000 words |
Similar Standards: | GB/T 10322.7-2004 YS/T 1047.9-2015 GB/T 10322.9-2023 GB/T 6730.86-2023 GB/T 6730.85-2023 GB/T 6730.87-2023 GB/T 10322.1-2023 GB/T 6730.84-2023 GB/T 42523-2023 GB/T 42524-2023 GB/Z 42521-2023 GB/T 42522-2023 GB/T 6730.51-2023 GB/Z 42520-2023 GB/Z 42358-2023 GB/T 6730.61-2022 GB/T 20565-2022 GB/T 6730.60-2022 GB/T 10322.6-2022 GB/T 6730.5-2022 |
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