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International Standard Category: Oxides |
Category No.: | 71.060.20 | Valid Status: | superseded |
Issued Organization: | Issued Date: | 2002-01-24 | |
Implemented Date: | 2002-7-1 | Abolished Date: | |
Superseded Standard.: | HG/T 3258-2010 Thiourea dioxide for industrial use |
Superseded Date: | 2011-3-1 |
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