本文件规定了一种通过测定氮含量的方法，以计算在去除非纤维物质后，由以下混合物制成的纺织品中每种成分的比例: -黄麻 具有 -动物纤维。 动物纤维成分可以仅由毛发或羊毛或两者的任何混合物组成。 本文件不适用于染料或整理剂中含有氮的产品。 注:由于该方法在原则上不同于ISO 1833-1中规定的基于选择性溶解度的一般方法，因此其给出的形式本身是完整的。

This document specifies a method, by determining the nitrogen content, to calculate the proportion of each component, after the removal of non-fibrous matter, in textiles made of mixtures of — jute with — animal fibres. The animal-fibre component can consist solely of hair or wool, or of any mixtures of the two. This document is not applicable to products in which dyestuffs or finishes contain nitrogen. NOTE Because this method differs in principle from the general method based on selective solubility set out in ISO 1833-1, it is given in a form that is complete in itself.