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Standard Insuued on: 1989-06 |
Category No.: | GB | Valid Status: | superseded |
Issued Organization: | MOH | Issued Date: | 1989-06-20 |
Implemented Date: | 1990-2-1 | Abolished Date: | |
Superseded Standard.: | GBZ/T 160.9-2004 Methods for determination of copper and its compounds in the air of workplace |
Superseded Date: | 2004-12-1 |
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