物理安全检测
ISO 4628-7涂料和清漆变化程度命名. 第7部分
标准名称
ISO 4628-7 Paints and varnishes - Evaluation of degradation of coatings - Designation of quantity and size of defects, and of intensity of uniform changes in appearance - Part 7: Assessment of degree of chalking by velvet method
ISO 4628-7涂料和清漆. 涂层老化评估. 缺陷数量和大小以及外观均匀变化程度命名. 第7部分: 采用天鹅绒布法测定粉化程度
适用范围
Scope:
This part of ISO 4628 specifies a method suitable, in particular, for rating the degree of chalking on white or coloured exterior coatings and coating systems on rough surfaces (i.e. those having a roughness greater than segment 4 of the reference comparator G as described in ISO 8503-1).
引用文件
ISO 13076 Paints and varnishes — Lighting and procedure for visual assessments of coatings
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