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Standard Insuued on: 1992-07 |
Category No.: | YS | Valid Status: | superseded |
Issued Organization: | China Nonferrous Metals Industry Corporation | Issued Date: | 1992-07-14 |
Implemented Date: | 1993-10-1 | Abolished Date: | |
Superseded Standard.: | YS/T 53.2-2010 Methods for chemical analysis of copper,lead,zinc original and tailing ores - Part 2: Determination of gold content - Separation and preconcentration by flow injection and 8531 fiber mi |
Superseded Date: | 2011-3-1 |
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