Paints and varnishes—Evaluation of degradation of coatings—Designation of quantity and size of defects,and of intensity of uniform changes in appearance—Part 6:Assessment of degree of chalking by tape method
IDT ISO 4628-6:2011
全国涂料和颜料标准化技术委员会(SAC/TC 5)
GB/T 30789的本部分提供了评定色漆涂层粉化程度的图片参照标准。本部分也规定了评定粉化等级的方法。使用本方法时，重要的是仔细区分真正的老化降解产物和沾污物，尤其是轻微粉化时。
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