Chinese Standard: GB/T 30789.5-2015

Paints and varnishes—Evaluation of degradation of coatings—Designation of quantity and size of defects,and of intensity of uniform changes in appearance—Part 5:Assessment of degree of flaking

IDT  ISO 4628-5:2003

全国涂料和颜料标准化技术委员会(SAC/TC 5)

GB/T 30789的本部分给出了通过与标准的图示比较，并使用ISO 46281中规定的定义，来评定剥落等级的方法。

ISO 46281定义了关于涂层老化引起的缺陷的数量和大小以及外观均匀变化程度评定体系，并概述了评定体系的总则。

本评价体系适用于老化和风化所引起的缺陷，以及诸如颜色变化（例如：黄变）的均匀变化。

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