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| International Standard Category: Organic acids |
GB/T 30921.1-2014 Test method of purified terephthalic acid (PTA) for industrial use―Part 1:Determination of concentrations of 4-carboxybenzaldehyde (4-CBA)and p-toluic acid (p-TOL)
工业用精对苯二甲酸（PTA）试验方法 第1部分：对羧基苯甲醛（4-CBA）和对甲基苯甲酸(p-TOL)含量的测定 ;
| Category No.: | 71.080.40 | Valid Status: | valid |
| Issued Organization: | AQSIQ; SAC | Issued Date: | 2014-07-08 |
| Implemented Date: | 2014-12-1 | Abolished Date: | |
| Superseded Standard.: | Superseded Date: |
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