... Index nameValue Quality indexHG/T 2572-94 First gradeQualified productZinc oxide (ZnO), %95~9895-98Moisture , %≤0.70.7Water soluble matter, %≤0 ... in HCl, %0.020.05PbO(as pb), %≤0.010.05Manganese oxide (as Mn), %≤0.0010.003CuO(as Cu), %≤ 0.0010.003Fineness ...