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国家标准
英文:Test method of purified terephthalic acid (PTA) for industrial use—Part 4: Determination of titanium content—Diantipy...
英文:Test method of purified terephthalic acid (PTA) for industrial use—Part 4: Determination of titanium content—Diantipy...