GB/T 30789.9-2014
色漆和清漆 涂層老化的評價 缺陷的數量和大小以及外觀均勻變化程度的標識 第9部分:絲狀腐蝕等級的評定
Paints and varnishes.Evaluation of degradation of coatings.Designation of quantity and size of defects, and of intensity of uniform changes in appearance.Part 9:Assessment of degree of filiform corrosion
GBT30789.9-2014, GB30789.9-2014