ISO 4628-4-2016
涂料和清漆. 涂層老化評估. 缺陷數量和大小以及外觀均勻變化程度命名. 第4部分: 開裂程度評定
Paints and varnishes - Evaluation of degradation of coatings - Designation of quantity and size of defects, and of intensity of uniform changes in appearance - Part 4: Assessment of degree of cracking