... ) Content, ≤ %0.03Burning Loss, %25.0-26.5Heavy Metal (by Pb ) Content, ≤%0.003PHvalue (20% suspension)6.8-8.1Stability, ... through experimentCarbonate,through experimentContent Insoluble in Hydrochloric Acid, ≤ %0.2Sulfate (by SO4-2) Content, ≤%0.5Drying Loss, ≤%0.6Apparent Density, g ...