ISO 4048:2008 皮革 化学试验 二氯甲烷中可溶物质和游离脂肪酸含量的测定

标准编号：ISO 4048:2008

中文名称：皮革 化学试验 二氯甲烷中可溶物质和游离脂肪酸含量的测定

英文名称：Leather — Chemical tests — Determination of matter soluble in dichloromethane and free fatty acid content

发布日期：2008-02

标准范围

ISO 4048:2008规定了皮革中可溶于二氯甲烷的物质的测定方法。此方法适用于所有类型的皮革ISO 4048:2008包括两种提取脂肪物质的技术:1）使用索氏仪器提取；2）使用加压萃取系统进行萃取。由于提取通常与皮革游离脂肪酸含量的测定一起进行，因此包括通过该方法提取的游离脂肪酸测定的适当程序。本方法中描述的设备和技术也适用于通过二氯甲烷以外的溶剂提取皮革（尽管高压提取可能需要改变温度条件）。

ISO 4048:2008 specifies a method for the determination of the substances in leather which are soluble in dichloromethane. This method is applicable to all types of leatherISO 4048:2008 includes two techniques for extraction of the fatty substances: 1) extraction using the Soxhlet apparatus; and 2) extraction using a pressurized extraction system. As the extraction is frequently done in conjunction with determination of the free fatty acid content of the leather, a suitable procedure for determination of the free fatty acids extracted by this method is included.The apparatus and technique described in this method are also suitable for the extraction of leather by solvents other than dichloromethane (although the temperature conditions may need to be varied for high pressure extraction).

标准预览图