DIN EN ISO 17751-1:2023-12 纺织品 羊绒羊毛其他特种动物纤维及其混纺品的定量分析 第1部分:光学显微镜法(ISO 17751-1:2023);德文版 EN ISO 17751-1:2023
Textiles - Quantitative analysis of cashmere, wool, other specialty animal fibres and their blends - Part 1: Light microscopy method (ISO 17751-1:2023); German version EN ISO 17751-1:2023