KS M ISO 17234-1-2019 Leather ─ Chemical tests for the determination of certain azo colorants in dyed leathers ─ Part 1: Determination of certain aromatic amines derived from azo colorants
2023KS M ISO 17234-1-2023 Leather — Chemical tests for the determination of certain azo colourants in dyed leathers — Part 1: Determination of certain aromatic amines derived from azo colourants
2019KS M ISO 17234-1:2019 Leather ─ Chemical tests for the determination of certain azo colorants in dyed leathers ─ Part 1: Determination of certain aromatic amines derived from azo colorants
2014KS M ISO 17234-1:2014 Leather ─ Chemical tests for the determination of certain azo colorants in dyed leathers ─ Part 1: Determination of certain aromatic amines derived from azo colorants