标准编号：ISO 17197:2014
中文名称：燃料用二甲醚（DME） 测定含水量 费歇尔滴定法
英文名称：Dimethyl ether (DME) for fuels — Determination of water content — Karl Fischer titration method
发布日期：2014-11
标准范围
This International Standard specifies a procedure of test for the amount of water content in DME used asfuel by the Karl Fischer titration method. This procedure is applicable to determine the amount of waterup to the value specified in ISO 16861.This test method is intended for use with commercially available coulometric (or volumetric) Karl Fischerreagents and for the determination of water in DME additives, lube oils, base oils, automatic transmissionfluids, hydrocarbon solvents, and other petroleum products. By proper choice of the sample size, thistest method can be used to determine water from mg/kg (ppm) to percent level concentrations.NOTE The precision of this method has been studied for a limited set of samples and content levels by alimited amount of labs. It allows establishment of a quality specification of DME but cannot be considered as a fullprecision determination in line with the usual statistical methodology as in ISO 4259.
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