KS M ISO 4628-1-2022
色漆和清漆 涂层降解的评价 缺陷数量和尺寸以及外观均匀变化强度的指定 第1部分：一般介绍和指定系统
Paints and varnishes－Evaluation of degradation of coatings－Designation of quantity and size of defects, and of intensity of uniform changes in appearance－Part 1：General introduction and designation system