NF EN ISO 1833-6:2019 紡織品 定量化學(xué)分析 第6部分:粘膠、某些類型的銅氨、莫代爾或萊賽爾纖維與某些其他纖維的混合物(甲酸和氯化鋅法)
Textiles - Quantitative chemical analysis - Part 6: mixtures of viscose, certain types of cupro, modal or lyocell with certain other fibers (formic acid and zinc chloride method)