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Chinese National Standard Category: Steel and iron alloy analysis method |
English Title: | Methods for chemical analysis of iron,steel and alloy--The sodium carbonate separation-diphenyl carbazide photometric method for the determination of chromium content |
Chinese Title: | 钢铁及合金化学分析方法 碳酸钠分离--二苯碳酰二 肼光度法测定铬量 |
Standard No.: | GB/T 223.12-1991 |
Category No.: | H11 |
Issued by: | SBTS |
Issued on: | 6-Sep-91 |
Implemented on: | 1992-6-1 |
Status: | valid |
Superseded by: | |
Superseded on: | |
Abolished on: | |
Superseding: | GB 223.12-1982 |
Word Count: | 2000 words |
Similar Standards: | GB 4333.5-1984 GB/T 7730.2-2002 GB 4010-1983 GB/T 5686.9-2023 GB/T 3654.8-2023 GB/T 7731.17-2023 GB/T 5686.5-2023 GB/T 3653.3-2023 GB/T 223.92-2023 GB/T 4333.2-2023 GB/T 42794-2023 GB/T 5686.7-2022 GB/T 5686.4-2022 GB/T 223.54-2022 GB/T 5686.1-2022 GB/T 223.63-2022 GB/T 5686.2-2022 GB/T 41496-2022 GB/T 40311-2021 GB/T 223.90-2021 |
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