Preparation of steel substrates before application of paints and related products - Visual assessment of surface cleanliness - Part 4: Initial surface conditions, preparation grades and flash rust grades in connection with high-pressure water jetting (ISO 8501-4:2006)
涂料和相关产品使用前钢衬底的制备表面清洁度的目视评定第4部分:与高压水喷射有关的初始表面条件、制备等级和闪锈等级(ISO 8501-4-2006)