规定的方法的原理是将测量体积的气体通过含有相对小体积吸收剂溶液的电池。气体中的水由吸收剂溶液萃取，随后用卡尔费休试剂滴定。选择电池和吸收剂溶液的设计，以确保在必要的高流量下有效地收集水。适用于5 mg/cm ^ 3至5000 mg/cm ^ 3之间的水分浓度

The principle of the method specified is passing a measured volume of gas through a cell containing a relatively small volume of absorbent solution. Water in the gas is extracted by the absorbent solution and subsequently titrated with Karl Fischer reagent. The design of the cell and the absorbent solution are chosen so as to ensure efficient collection of the water at the high flowrates necessary. Is applicable to water concentrations between 5 mg/cm^3 and 5000 mg/cm^3.