BS EN ISO 1833-22. Textiles. Quantitative chemical analysis. Mixtures of viscose or certain types of cupro or modal or lyocell and flax fibres (method using formic acid and zinc chloride)
BS EN ISO 1833-22. Textiles. Quantitative chemical analysis. Mixtures of viscose or certain types of cupro or modal or lyocell and flax fibres (method using formic acid and zinc chloride)