GB/T 2910.21-2009
纺织品.定量化学分析.第21部分:含氯纤维、某些改性聚丙烯腈纤维、某些弹性纤维、醋酯纤维、三醋酯纤维与某些其他纤维的混合物(环己酮法)
Textiles.Quantitative chemical analysis.Part 21:Mixtures of chlorofibers,certain modacrylics,certain elastanes,acetates,triacetates and certain other fibers(method using cyclohexanone)
GBT2910.21-2009, GB2910.21-2009