标准摘要
[中文适用范围]： 本标准规定了采用紫外（UV）荧光法测定燃料用二甲醚（DME）中硫含量的方法。 该程序适用于测定不超过 ISO 16861 规定值的总硫量。 该测试方法不会测量在实际测试条件（即室温和大气压）下不挥发的硫。 注：该方法的精度已由有限数量的实验室针对有限的样品和含量水平进行了研究。 它允许建立 DME 的质量规范，但不能被视为符合 ISO 4259 中常用统计方法的完全精确测定。 [外文原描述]： ISO 17198:2014 specifies a procedure of test for the sulfur content in dimethyl ether (DME) used as fuel by the ultraviolet (UV) fluorescence method. This procedure is applicable to determine the amount of total sulfur up to the value specified in ISO 16861. This test method will not measure sulfur that is not volatile under the practical conditions of the test, namely room temperature and atmospheric pressure. NOTE The precision of this method has been studied for a limited set of samples and content levels by a limited amount of labs. It allows establishment of a quality specification of DME but cannot be considered as a full precision determination in line with the usual statistical methodology as in ISO 4259.
英文名称Dimethyl ether (DME) for fuels — Determination of total sulfur, ultraviolet fluorescence method