Chinese Standard: GB/T 30921.7-2016

Test method of purified terephthalic acid(PTA) for industrial use—Part 7:Determination of  b* value—Color difference meter

全国化学标准化技术委员会(SAC/TC 63)

 GB/T 30921的本部分规定了工业用精对苯二甲酸(PTA) b*值测定的色差计法。  本部分适用于工业用精对苯二甲酸(PTA) b*值的测定。

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