DIN 1164-31:1990 硅酸鹽水泥、礦渣硅酸鹽水泥、礦渣水泥和火山灰質水泥.礦渣硅酸鹽水泥和礦渣水泥中粒狀高爐礦渣含量以及火山灰質水泥中火山灰含量的測定
Portland-, Iron Portland-, blast furnace- and trass cement; determination of granulated blast furnace slag content of iron Portland cement and blast furnace cement and trass content of trass cement