美利体育登录入口官网:KS M ISO 4628-3-2018 涂料和清漆 - 涂料降解评估 - 缺陷数量和尺寸的指定以及外观均匀变化的强度 - 第3部分:生锈程度评估
Paints and varnishes — Evaluation of degradation of coatings — Designation of quantity and size of defects, and of intensity of uniform changes in appearance — Part 3: Assessment of degree of rusting