DIN EN ISO 11125-4-1997 使用涂料及相关产品前钢材的预处理.喷丸金属磨料试验方法.第4部分:表观密度测定
Preparation of steel substrates before application of paints and related products - Test methods for metallic blast-cleaning abrasives - Part 4: Determination of apparent density (ISO 11125-4:1993); German version EN ISO 11125-4:1997