本文件规定了在表面处理之前和/或之后，通过电导测定法评估钢表面各种水溶性盐的表面密度的现场方法。这种方法不能测定氯化物、硫酸盐、钠等盐成分的单个表面密度。 这种方法只评估与水接触时形成电解质（离子）的污染物。这些代表了大部分污染物。

This document specifies a field method for the assessment of the surface density of various water-soluble salts on steel surfaces, before and/or after surface preparation, by conductometric determination. The individual surface densities of the salt composition like chlorides, sulphates, sodium, etc, cannot be determined by this method. This method assesses only contaminants that forms an electrolyte (ions) when in contact with water. These represent the greater part of the contaminants.