DIN EN ISO 1833-9:2011 Textiles - Quantitative chemical analysis - Part 9: Mixtures of acetate and triacetate fibres (method using benzyl alcohol) (ISO 1833-9:2006); German version EN ISO 1833-9:2010
2020DIN EN ISO 1833-9:2020-02 Textiles - Quantitative chemical analysis - Part 9: Mixtures of acetate with certain other fibres (method using benzyl alcohol) (ISO 1833-9:2019); German version EN ISO 1833-9:2019
2011DIN EN ISO 1833-9:2011 Textiles - Quantitative chemical analysis - Part 9: Mixtures of acetate and triacetate fibres (method using benzyl alcohol) (ISO 1833-9:2006); German version EN ISO 1833-9:2010