涂料和相关产品使用前钢衬底的制备.表面清洁度评定试验.第15部分:用酸萃取法分析可溶性污染物的萃取

[中文适用范围]： 本文件规定了一种从表面提取酸溶性污染物进行分析的方法，该方法使用可粘贴到任何表面的粘性贴片或套管形式的柔性单元，无论其形状（平面或弯曲）及其方向如何（面向任何方向，包括向下）。 所描述的方法适合在现场使用，以在涂漆或类似处理之前确定酸溶性污染物的存在。 本文件不包括对已溶解污染物的后续分析。 ISO 8502 的其他部分（例如 ISO 8502-5）中描述了适合现场使用的分析方法。 本文件的程序与 ISO 8502-6 类似，但不等同。 主要区别在于所使用的溶剂以及可对萃取溶液进行的后续分析。 [外文原描述]： This document specifies a method of extracting, for analysis, acid soluble contaminants from a surface by use of flexible cells in the form of adhesive patches or sleeves which can be attached to any surface, regardless of its shape (flat or curved) and its orientation (facing in any direction, including downwards). The described method is suitable for use in the field to determine the presence of acid soluble contaminants before painting or a similar treatment. This document does not cover the subsequent analysis of the contaminants that have been dissolved off. Methods of analysis suitable for field use are described in other parts of ISO 8502 such as ISO 8502-5. This document is similar in procedure to, but not equal to, ISO 8502-6. The main difference is the solvent used and the subsequent analysis that can be performed on the extraction solution.