DIN 52241-8:1986 制造玻璃原料的分析.含碳酸鈣鎂不小于95%的白云石的化學(xué)分析.氧化鈣和氧化鎂測(cè)定
Analysis of raw materials used in glass production; chemical analysis of dolomite containing not less than 95 % of calcium magnesium carbonate; determination of calcium oxide and magnesium oxide