BS EN ISO 4628-1-2016 涂料和清漆.漆膜降解的评定.缺陷的量值和大小以及外观均匀变化强度的规定.一般说明和指示系统
Paints and varnishes. Evaluation of degradation of coatings. Designation of quantity and size of defects, and of intensity of uniform changes in appearance. General introduction and designation system