... .. NO.ItemIndex1TiO2 content,%(m/m)≥98.52Volatile matters at 105°C,%(m/m)≤0.53Electrical resistance of aqueous extract,Ωm≥224PH ... ),%(m/m)≤0.056Oil absorption value,g/100g≤207Whiteness,(compared with standard sample)100%8water dispersible power,%≥809Iron content,ppm≤50 -------Rutile ... the sieve(45um mesh),%(m/m)≤0.027Volatile matters at105·C,%(m/m)≤0.58Water soluble,%≤0.59Oil absorption value,%(m ...