ISO 1833-5:2006
Textiles -- Quantitative chemical analysis -- Part 5: Mixtures of viscose, cupro or modal and cotton fibres (method using sodium zincate)
Product Details
Where a cupro or modal fibre is present, a preliminary test should be carried out to see whether it is soluble in the reagent.
The method is not applicable to mixtures in which the cotton has suffered extensive chemical degradation, nor when the viscose, cupro or modal fibre is rendered incompletely soluble by the presence of certain permanent finishes or reactive dyes that cannot be removed completely.