喷砂清理相关标准

涂装及相关产品施工前钢材基材的准备——表面清洁度的视觉评估——第1部分信息性补充：不同磨料喷砂清理后钢材外观变化的代表性照片示例

Preparation of steel substrates before application of paints and related products — Visual assessment of surface cleanliness — Informative Supplement to part 1: Representative photographic examples of the change of appearance imparted to steel when blast-cleaned with different abrasives