Textiles. Quantitative chemical analysis - Mixtures of polyamide with certain other fibres (method using formic acid)
Textiles. Quantitative chemical analysis - Mixtures of polyamide with certain other fibres (method using formic acid)
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Textiles. Quantitative chemical analysis - Mixtures of polyamide with certain other fibres (method using formic acid)

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1   Scope

This document specifies a method, using formic acid, to determine the mass percentage of polyamide fibre, after removal of non-fibrous matter, in textiles made of mixtures of
  • — polyamide
with
  • — cotton, viscose, cupro, modal, lyocell, polyester, polypropylene, chlorofibre, acrylic, glass fibre, elastomultiester, elastolefin and melamine, or
  • — wool (if the wool content is less than or equal to 25 %), or animal hair fibres.
This document does not apply when the wool content exceeds 25 %; ISO 1833‑4 applies.