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) Ingestion-build-156411 Methods are described to allow

Methods are described to allow effective comparison of performance between products

characteristics to be specified and their methods of measurement

additional testing (if necessary)

BS EN 4708-107 on polytetrafluoroethylene sleeving is useful for:

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) Ingestion-build-156411 Methods are described to allow1 Scope This part of ISO 1833 is applicable, after removal of non fibrous matter, to binary mixtures of viscose or certain types of the current cupro or modal or lyocell fibres with flax fibres. If a cupro or modal fibre is found to be present, a preliminary test should be carried out to see whether it is soluble in the reagent. The part of ISO 1833 is not applicable to mixtures in which the flax fibre has suffered extensive chemical degradation, nor