工业用精对苯二甲酸色度的测定 分光光度法
Determination of colourity of purified terephthalic acid for industrial use - Spectrophtometric method
2014-01-13
GB/T 30921.4-2016
工业用精对苯二甲酸(PTA)试验方法 第4部分:钛含量的测定 二安替吡啉甲烷分光光度法
Test method of purified terephthalic acid (PTA) for industrial use—Part 4: Determination of titanium content—Diantipyrylmethane photometric method