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