DIN EN ISO 1833-21 E:2010-03
紡織品 定量化學分析 第21部分:含氯纖維,某些改性聚丙烯腈纖維,某些彈性纖維,醋酯纖維,三醋酯纖維與某些其他纖維的混合物(環已酮法)(草案)
Quantitative chemical analysis of textiles Part 21: Mixtures of chlorine-containing fibers, certain modified polyacrylonitrile fibers, certain elastic fibers, acetate fibers, triacetate fibers and certain other fibers (cyclohexanone method) (Draft)