DIN EN ISO 17234-1:2023-10 皮革 测定染色皮革中某些偶氮着色剂的化学测试 第 1 部分:源自偶氮着色剂的某些芳香胺的测定(ISO/DIS 17234-1:2023);德语版和英语版 prEN ISO 17234-1:2023 / 注:Da...
Leather - Chemical tests for the determination of certain azo colourants in dyed leathers - Part 1: Determination of certain aromatic amines derived from azo colourants (ISO/DIS 17234-1:2023); German and English version prEN ISO 17234-1:2023 / Note: Da...