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Standard Insuued on: 2004-04 |
Category No.: | GB | Valid Status: | abolished |
Issued Organization: | the General Administration of Quality Supervision, Inspection and Quarantine and the Standardization Administration of China | Issued Date: | 2004-04-30 |
Implemented Date: | 2004-10-1 | Abolished Date: | 2011-02-01 |
Superseded Standard.: | GB/T 15224.1-2010 Classification for quality of coal—Part 1:Ash |
Superseded Date: | 2011-2-1 |
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