BS EN ISO 1833-21:2019(2020) Textiles — Quantitative chemical analysis Part 21 : Mixtures of chlorofibres, certain modacrylics, certain elastanes, acetates, triacetates with certain other fibres (method using cyclohexanone)
2020BS EN ISO 1833-21:2019 Textiles. Quantitative chemical analysis - Mixtures of chlorofibres, certain modacrylics, certain elastanes, acetates, triacetates with certain other fibres (method using cyclohexanone)
2011BS EN ISO 1833-21:2011 Textiles. Quantitative chemical analysis. Mixtures of chlorofibres, certain modacrylics, certain elastanes, acetates, triacetates and certain other fibres (method using cyclohexanone)
2011BS EN ISO 1833-21:2010 Textiles. Quantitative chemical analysis. Mixtures of chlorofibres, certain modacrylics, certain elastanes, acetates, triacetates and certain other fibres (method using cyclohexanone)
1988BS 4407:1988 Methods for quantitative analysis of fibre mixtures