GB/T 20199-2006 标准详情
GB/T 20199-2006
现行
表面活性剂-工业烷烃磺酸盐-烷烃单磺酸盐含量的测定(直接两相滴定法)
Surface active agents - Technical alkane sulfonates - Determination of alkane monosulfonates content by direct two-phase titration