Index name Value Quality index HG/T 2572-94 Index nameValue Quality indexHG/T 2572-94 First gradeQualified productZinc oxide (ZnO), %95~9895-98Moisture ... in HCl, %0.020.05PbO(as pb), %≤0.010.05Manganese oxide (as Mn), %≤0.0010.003CuO(as Cu), %≤ 0.0010.003Fineness ... area ,m2/g ≥4535Bulk density ,g/ml ≤0.350.40. zinc oxide(ZnO)