DIN EN ISO 4628-4:2004 色漆和清漆.漆膜降解的评定.缺陷量值、大小以及外观均匀改变程度的规定.第4部分:裂纹等级的评定
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 (ISO 4628-4:2003); German version EN ISO 4628-4:2003
The document specifies a method for assessing the degree of cracking of coatings by comparison with pictorial standards and using the designation system defined in ISO 4628-1.