ISO 1833-21:2019
纺织品.定量化学分析.第21部分:氯纤维 某些丙烯酸树脂 某些弹性纤维 乙酸酯 三醋酸酯和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)