China 'GB/T 8923.4-2013
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 8923.4-2013
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 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
Issued Date:2013-07-19
Implemented Date:2013-12-01
Issued by:
The Standardization Administration of the People's Republic of China