... calcium carbonate PCC content:97% Top Cut(D50),um: 0.08 whiteness :97% payment: TT D/P LC ... %≥98≥97≥97Bulk density,g/cm3----≤0.55-0.6≤0.45-0.5Settling value, ml/g ≥2.6≥2.0≥2.4Whiteness (R457), %≥97≥97 ... ≥97Average Grain(D50), μm ≤0. ... 08≤2.5-3.5≤4Residues, 125μm, %---≤0.5≤0 ...