KS K ISO 1833-21-2022 纺织品.定量化学分析.第21部分:氯纤维、某些改性聚丙烯腈、某些弹性烷、乙酸酯、三乙酸酯与某些其他纤维的混合物(环己酮法)
Textiles — Quantitative chemical analysis — Part 21: Mixtures of chlorofibres, certain modacrylics, certain elastanes, acetates, triacetates with certain other fibres(method using cyclohexanone)