1, TiO2 (W%): ≥ 90;
2, white degrees (compared with standard sample): ≥ 98%;
3, oil absorption (g/100g): ≤ 23;
4, PH value: 7.0 ~ 9.5;
5, 105 Volatile (%): ≤ 0.5;
6, Reducing power (compared with standard sample): ≥ 95%;
7, hiding (g/m2): ≤ 45;
8, 325 mesh sieve residue: ≤ 0.05%;