$10
Paints and varnishes—Evaluation of degradation of coatings—Designation of quantity and size of defects ,and of intensity of uniform changes inappearance—Part 1:General introduction and designation system
IDT ISO 4628-1:2003
全国涂料和颜料标准化技术委员会(SAC/TC 5)
GB/T 30789的本部分给出了评价涂层缺陷的数量和大小以及外观均匀变化程度的标识体系,概述了整个体系的总则,该体系特别适用于人工加速老化和天然曝晒引起的缺陷和均匀变化,如颜色变化,例如:黄变。
GB/T 30789的其他部分提供了一些标准图片或评定一些特殊类型缺陷的其他方法,评定时尽可能以已经确定的方法为基础。
GB/T 30789其他部分所不包含的缺陷也可用本部分评定。
This standard is the original Chinese electronic standard.
After you successfully purchase, we will send the electronic version of this standard to your email address.
If you need translation, please contact email: ChineseStandardsLibraryS001@gmail.com.