
Textiles – Quantitative chemical analysis – Part 21: Mixtures of chlorofibres, certain modacrylics, certain elastanes, acetates, triacetates and certain other fibres (method using cyclohexanone) (ISO 1833-21:2019); German version EN ISO 1833-21:2019
出版:German Institute for Standardisation (Deutsches Institut für Normung)

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EN ISO 1833-21:2019 - Identical
ISO 1833-21 : 2019 - Identical
ISO 1833-21 : 2019 - Identical