... : Al2O3; 15.8%min; Fe: 0.5%max; pH: 3.0min; Water Insolubles: 0.15%max Grain size: 15mm max(Flakys ... Al2O3, 15.9%min, Fe: 0.007%max, pH: 3.0min, Water Insolubles, 0.15%max Grain size: 15mm max Packing ... Specification: Al2O3, 16%min, Fe: 0.005%max, pH: 3.0min, Water Insolubles: 0.15%max, As: 0.0005%max, ... Al2O3: 15.7%min, Fe: 0.5%max, pH: 3.0min, Water Insolubles: 0.15%max Size: Below 10mesh-100mesh min ...