Items                                            Specification
                                                 15.8% 17%
Al2O3 %                                          15.8 Min 17 Min
Iron Fe content%                                 0.50 Max 0.005 Max
Water insoluble matter %                         0.15 Max 0.15 Max
PH value 1% aqueous solution                     3.0 Min 3.0 Min
Heavy metals as Pb                               % 0.002 Max 0.002 Max
AS %                                             0.0005 Max 0.0005 Max
Granularity ---                                  15mm