ISO 19242:2021 橡胶 用离子色谱法测定总含硫量

标准编号：ISO 19242:2021

中文名称：橡胶 用离子色谱法测定总含硫量

英文名称：Rubber — Determination of total sulfur content by ion chromatography

发布日期：2021-10

标准范围

本文件规定了在使用管式炉燃烧法或氧气燃烧瓶法制备样品溶液后，通过离子色谱法测定生橡胶和未硫化或硫化橡胶化合物中总硫含量的方法。管式炉燃烧法适用于硫含量小于0.1%的橡胶，因为氧燃烧瓶法可能无法给出足够准确的结果。氧气燃烧瓶法不适用于含有形成不溶性金属硫酸盐的金属盐的橡胶，如硫酸钡（CAS？7727？43？7）。

This document specifies a method for the determination of the total sulfur content of raw rubber and unvulcanized or vulcanized rubber compounds by ion chromatography following the preparation of a sample solution using either a tubular furnace combustion or an oxygen combustion flask method.The tubular furnace combustion method is applicable for rubbers with sulfur content less than 0,1 % as it is possible that the oxygen combustion flask method will not give sufficiently accurate results.The oxygen combustion flask method is not applicable to rubbers containing a metal salt that forms an insoluble metal sulfate, such as barium sulfate (CAS 7727？43？7).

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