ISO 2647:1973 羊毛.用投影显微镜测定有髓纤维的百分率

标准编号：ISO 2647:1973

中文名称：羊毛.用投影显微镜测定有髓纤维的百分率

英文名称：Wool — Determination of percentage of medullated fibres by the projection microscope

发布日期：1973-04

标准范围

该方法适用于从原材料到纱线的所有阶段的羊毛和精纺产品。它使用与ISO/R 137中所述相同的设备和技术。由于制备和测量方法给出了一个有长度偏差的样本，因此该方法给出的结果是有髓纤维长度占所有纤维总长度百分比的估计值。它不能用来估计髓质体积或纤维密度。

The method is applicable to woolen and worsted products, at all stages, from raw materials to yarn. It utilizes the same apparatus and technique as that described in ISO/R 137. Since the method of preparation and measurements gives a length-biased sample, the result given by this method is an estimate of the length of medullated fibres as a percentage of the total length of all fibres. It cannot be used to estimate the volume of medullation or fibre density.

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