EN ISO 11127-4-1997 涂装油漆和有关产品前钢材预处理喷射清理用非金属磨料的试验方法.第4部分:通过玻璃载片试验评定硬度 ISO 11127-4-1993
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 ISO 11127-4: 1993