DIN EN ISO 1833-21 : 2019 Title: 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) Year: 2019 Publisher: DIN Media GmbH Availability: Within 1-2 working days