1) tio2 content (m/m): 93.0%min 2) brightness: 94.0%min 3) tint reducing power: 1750min 4) volatile at 105 %: 0.8max 5) ph value: 6.0-9.0 6) oil absorption g/100g 21max 7) sieve residue (45um), (m/m): 0.05%max 8) specific resistanceM 60min 9) content of rutile: 97%min