ISO 10101-3:1993 天燃气.卡尔.菲舍尔法水测定.第3部分：库仑法

标准编号：ISO 10101-3:1993

中文名称：天燃气.卡尔.菲舍尔法水测定.第3部分：库仑法

英文名称：Natural gas — Determination of water by the Karl Fischer method — Part 3: Coulometric procedure

发布日期：1993-10

标准范围

规定方法的原理是将测量体积的气体通过滴定池，在滴定池中，水被阳极溶液吸收。卡尔·费歇尔反应测定水所需的碘是由碘库仑法生成的。电量与生成的碘质量成正比，因此与测定的水质量成正比。适用于天然气和其他不与卡尔·费希尔试剂反应的气体。适用于浓度在5 mg/cm^3和5000 mg/cm^3之间的水。

The principle of the method specified is passing a measured volume of gas through the titration cell, where the water is absorbed by the anodic solution. The iodine required for the determination of water by the Karl Fischer reaction is generated coulometrically from iodide. The quantity of electricity is directly proportional to the mass of iodine generated and hence to the mass of water determined. Applies to natural gas and other gases which do not react with Karl Fischer reagents. Is applicable to water concentrations between 5 mg/cm^3 and 5000 mg/cm^3.

标准预览图