Draft Document - Paints and varnishes - Evaluation of defects on coated surfaces using optical imaging - Part 4: Evaluation of filiform corrosion (ISO/DIS 21227-4:2006); German version prEN ISO 21227-4:2006
文件草案.色漆和清漆.用光学成像评估涂层表面的缺陷.第4部分:丝状腐蚀的评估(ISO/DIS 21227-4-2006);德文版本prEN ISO 21227-4:2006