GB/T 15045-2013
Fatty alkyl dimethyl tertiary amines
QB/T 4084-2010
Dialkyl methyl tertiary amines
GB/T 6730.34-2017(\u82f1\u6587\u7248)
铁矿石 锡含量的测定 邻苯二酚紫-溴化十六烷基三甲胺分光光度法
GB/T 15045-1994