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Standard Insuued on: 1994-01 |
Category No.: | GB | Valid Status: | abolished |
Issued Organization: | China Iron and Steel Association | Issued Date: | 1994-01-18 |
Implemented Date: | 1994-10-1 | Abolished Date: | 2022-05-01 |
Superseded Standard.: | GB/T 14949.6-2021 Manganese ores—Determination of copper,lead and zinc content—Flame atomic absorption spectrometric method |
Superseded Date: | 2022-5-1 |
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