本文件规定了对涂层上或涂层中退化区域、斑点或其他缺陷进行目视评估的照明和程序。 本文件不适用于颜色的视觉比较，可使用ISO 3668进行评估。 注:本文件可能的应用示例见附件A。

This document specifies the lighting and the procedure for the visual assessment of degraded areas, spots or other defects on or in coatings. This document is not applicable to the visual comparison of colour, which can be assessed using ISO 3668. NOTE See Annex A for examples of the possible applications of this document.