BS EN ISO 4628-4:2016规定了通过比较评估涂层开裂程度的方法 有绘画标准。ISO 4628-1定义了用于指定缺陷数量、大小和强度的系统 介绍了涂层外观的变化，并概述了该系统的一般原理。这个系统是 特别适用于老化和风化引起的缺陷，以及均匀变化 例如颜色变化，例如变黄。交叉引用:ISO 13076ISO 4628- 1购买本文件时提供的所有当前修订均包含在购买本文件中。

BS EN ISO 4628-4:2016 specifies a method for assessing the degree of cracking of coatings by comparison with pictorial standards.ISO 4628-1 defines the system used for designating the quantity and size of defects and the intensity of changes in appearance of coatings and outlines the general principles of the system. This system is intended to be used, in particular, for defects caused by ageing and weathering, and for uniform changes such as colour changes, for example yellowing.Cross References:ISO 13076ISO 4628-1All current amendments available at time of purchase are included with the purchase of this document.