ISO 10101-3-1993 天然气 卡尔·费休法测定天然气中的水 第3部分:库仑法

标准号：ISO 10101-3-1993
中文标准名称：天然气 卡尔·费休法测定天然气中的水 第3部分:库仑法
英文标准名称：Natural gas; determination of water by the Karl Fischer method; part 3: coulometric procedure
标准类型：E24
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：E24
国际标准分类号：75.060
适用范围：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 and 5000 mg/cm.