EN ISO 17234-1:2020 皮革.测定染色皮革中某些偶氮着色剂的化学试验.第1部分:采自偶氮着色剂的某些芳香胺的测定
Leather - Chemical tests for the determination of certain azo colourants in dyed leathers - Part 1: Determination of certain aromatic amines derived from azo colorants (ISO 17234-1:2020)