BS EN ISO 11127-4-2020 涂料和其它相关制品应用前钢基质的预处理. 非金属喷砂清理磨料试验方法. 用玻璃划痕试验评估硬度
Preparation of steel substrates before application of paints and related products. Test methods for non-metallic blast-cleaning abrasives. Assessment of hardness by a glass slide test