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ISO 1833-22:2020

Textiles — Quantitative chemical analysis — Part 22: Mixtures of viscose or certain types of cupro or modal or lyocell with flax fibres (method using formic acid and zinc chloride)

Publication date:   Dec 11, 2020

General information

60.60 Standard published   Dec 11, 2020

ISO

ISO/TC 38 Textiles

International Standard

59.060.01   Textile fibres in general

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Scope

This document specifies a method, using formic acid and zinc chloride, to determine the mass percentage of viscose or certain types of cupro or modal or lyocell, after removal of non-fibrous matter, in textiles made of mixtures of
— viscose or certain types of the cupro or modal or lyocell fibres
with
— flax fibres.
This document 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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 1833-22:2013

NOW

PUBLISHED
ISO 1833-22:2020
60.60 Standard published
Dec 11, 2020