GB/T 30921.1-2014 standard is a method for the determination of p-carboxylbenzaldehyde (4-CBA) and p-methylbenzoic acid (p-TOL) in refined terephthalic acid (PTA) for industrial use. The standard accurately determines the content of 4-CBA and p-TOL through chromatograph analysis technology suitable for PTA. This method is suitable for quality control and product inspection in the production process of PTA to ensure that the product meets the relevant industry standards and supports the stable operation of industrial production.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active | ||
|---|---|---|---|
| CCS | G16 | ICS | 71.080.40 |
| Release Date | 2014-07-08 00:00:00 | Implementation Date | 2014-12-01 00:00:00 |