Textiles—Quantitative chemical analysis—Part 22:Mixtures of viscose or certain types of cupro or modal or lyocell and flax of ramie fibres(method using formic acid and zinc chloride)
This part of GB/T 2910 specifies a method, using formic acid and zinc chloride, to determine the percentage of fibres, after removal of non-fibrous matter, in textiles made of binary mixtures of viscose or certain types of cupro or modal or lyocell and flax of ramie fibres.
The part of GB/T 2910 is not applicable to mixtures in which the flax fibre has suffered extensive chemical degradation, nor when the viscose, cupro, modal or lyocell fibre is rendered incompletely soluble by the presence of certain permanent finishes or reactive dyes that cannot be removed completely.
