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International Standard Category: Acids |
Category No.: | 71.060.30 | Valid Status: | superseded |
Issued Organization: | China Petroleum and Chemical Industry Federation | Issued Date: | 1990-01-02 |
Implemented Date: | 1991-1-2 | Abolished Date: | |
Superseded Standard.: | GB/T 538-2006 Boric acid for industrial use |
Superseded Date: | 2007-2-1 |
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