ISO 1833-25:2013 specifies a method using trichloroacetic acid and chloroform to determine the percentage of polyester fibres after removal of non-fibrous matter, in textiles made of binary mixtures of polyester fibres with other fibres, except one type of aramid (polyamide imide), polyamide, chlorofibre and modacrylic.
ISO 1833-25:2013Stage: 95.99
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