prEN ISO 4628-3
油漆和清漆 缺陷数量和尺寸以及外观均匀变化强度的评估 第3部分:生锈程度评估 (ISO/DIS 4628-3:2023)
Paints and varnishes - Evaluation of quantity and size of defects, and of intensity of uniform changes in appearance - Part 3: Assessment of degree of rusting (ISO/DIS 4628-3:2023)