UNE-EN ISO 21227-2:2007
油漆和清漆 使用光学成像评估涂层表面的缺陷 第2部分:多冲击石屑试验的评估程序(ISO 21227-2:2006)
Paints and varnishes - Evaluation of defects on coated surfaces using optical imaging - Part 2: Evaluation procedure for multi-impact stone-chipping test (ISO 21227-2:2006)