Item: FM98
W (MgO) /% ≥ 98
W (SiO₂) /% ≤ 0.5
W (CaO) /% ≤ 1.0
W (C) /S ≥ 2
B.D. (g/cm³) ≥ 3.50
Item: FM97
W (MgO) /% ≥ 97
W (SiO₂) /% ≤ 0.65
W (CaO) /% ≤ 1.3
W (C) /S ≥ 2
B.D. (g/cm³) ≥ 3.45
Item: FM96
W (MgO) /% ≥ 96
W (SiO₂) /% ≤ 0.95
W (CaO) /% ≤ 1.9
W (C) /S ≥ 2
B.D. (g/cm³) ≥ 3.45