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
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— polyamide
with
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— cotton, viscose, cupro, modal, lyocell, polyester, polypropylene, chlorofibre, acrylic, glass fibre, elastomultiester, elastolefin and melamine, or
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— 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.