ISO 1833-21:2019
紡織品.定量化學分析.第21部分:氯纖維 某些丙烯酸樹脂 某些彈性纖維 乙酸酯 三醋酸酯和某些其他纖維的混合物(環己酮法)
Textiles — Quantitative chemical analysis — Part 21: Mixtures of chlorofibres, certain modacrylics, certain elastanes, acetates, triacetates with certain other fibres (method using cyclohexanone)