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| International Standard List: Anhydrides |
| Title | Standard No. | Implemented On |
| Trimellitic anhydride for industrial use | GB/T 23967-2017 | 2018-4-1 |
| Trimellitic anhydride for industrial use | GB/T 23967-2009 | 2010-2-1 |
| Maleic anhydride for industrial use | GB/T 3676-2008 | 2008-12-1 |
| Acetic anhydride for industrial usec | GB/T 10668-2000 | 2000-1-1 |
| Maleic anhydride for industrial use | GB 3676-1992 | 1992-12-1 |
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