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
IDT ISO 4628-10:2003
全国涂料和颜料标准化技术委员会(SAC/TC 5)
GB/T 30789的本部分给出了通过测量由划痕引起的丝状腐蚀中最长细丝的长度L和最频繁出现的细丝的长度M从而对丝状腐蚀进行评定的方法。
本部分附录A中用图例说明丝状腐蚀中最长细丝的长度L和最频繁出现的细丝的长度M的不同等级。试验样板与附录A中12个图的比较不能取代必要的数字评定（方法1或方法2）。
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