Textiles - Quantitative chemical analysis - Part 7: Mixtures of polyamide and certain other fibres (method using formic acid) (ISO/DIS 1833-7:2016); German and English version prEN ISO 1833-7:2016
Textiles - Quantitative chemical analysis - Part 7: Mixtures of polyamide with certain other fibres (method using formic acid) (ISO 1833-7:2017); German version EN ISO 1833-7:2017— 9 стр.