本文件规定了一种使用二氯甲烷的方法，用于在去除非纤维物质后，测定由以下物质制成的纺织品中三醋酸酯或聚乳酸的质量百分比: -三醋酸酯或聚乳酸 具有 -羊毛或其他动物毛、丝绸、蛋白质、棉、粘胶纤维、铜、莫代尔、lyocell、聚酰胺、聚酯、丙烯酸、弹性多酯、聚丙烯、弹性烯烃、三聚氰胺、聚丙烯/聚酰胺双组分、聚丙烯酸酯和玻璃纤维。 部分水解（即皂化）的三醋酸纤维在试剂中不再完全可溶。 在这种情况下，此方法不适用。

This document specifies a method, using dichloromethane, to determine the mass percentage of triacetate or polylactide, after removal of non-fibrous matter, in textiles made of mixtures of — triacetate or polylactide with — wool or other animal hair, silk, protein, cotton, viscose, cupro, modal,lyocell, polyamide, polyester, acrylic, elastomultiester, polypropylene, elastolefin, melamine, polypropylene/polyamide bicomponent,polyacrylate and glass fibres. Triacetate fibres which have been partially hydrolysed (i.e. saponification) cease to be completely soluble in the reagent. In such cases, this method is not applicable.