物理安全检测
EN ISO 4628-4色漆和清漆变化强度.第4部分
标准名称
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
EN ISO 4628-4色漆和清漆.涂层降解的评价.设计缺陷数量和大小,以及外观统一变化强度.第4部分:裂度评估
适用范围
Scope:
This part of ISO 4628 specifies a method for assessing the degree of cracking of coatings by comparison with pictorial standards. ISO 4628-1 defines the system used for designating the quantity and size of defects and the intensity of changes in appearance of coatings and outlines the general principles of the system. This system is intended to be used, in particular, for defects caused by ageing and weathering, and for uniform changes such as colour changes, for example yellowing
引用文件
ISO 13076 Paints and varnishes — Lighting and procedure for visual assessments of coatings
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