本文件规定了一种使用二甲基乙酰胺测定由以下混合物制成的纺织品中去除非纤维物质后弹性纤维质量百分比的方法: -某些弹性纤维 具有 -棉、粘胶、铜、莫代尔、lyocell、聚酰胺、聚酯或羊毛纤维。 当存在丙烯酸纤维时，该方法不适用。 还可以使用ISO 1833-12或ISO 1833-21中所述的试验方法分析含有某些弹性纤维的混合物。

This document specifies a method using dimethylacetamide to determine the mass percentage of elastane, after removal of non-fibrous matter, in textiles made of mixtures of: — certain elastane fibres with — cotton, viscose, cupro, modal, lyocell, polyamide, polyester or wool fibres. This method is not applicable when acrylic fibres are present. It is also possible to analyse mixtures containing certain elastane fibres by using the test methods described in ISO 1833-12 or ISO 1833-21.