NF T35-509-4-1997 涂料及相关产品应用前钢基体的预处理.非金属喷砂清理磨料试验方法.第4部分:玻璃载片试验评估硬度(EN ISO 11127-4)
Preparation of steel substrates before application of paints and related products. Test methods for non-metallic blast-cleaning abrasives. Part 4 : assessment of hardness by a glass slide test.