GB/T 8923.4-2013
涂覆涂料前钢材表面处理 表面清洁度的目视评定 第4部分:与高压水喷射处理有关的初始表面状态、处理等级和闪锈等级
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
GBT8923.4-2013, GB8923.4-2013