Items 99% 99.5% 99.7% Content(ZnO)%≥ 99 99.5 99.7 MnO% ≤ 0.0001 0.0005 0.0004 PbO%≤ 0.15 0.05 0.037 CuO%≤ 0.001 0.0005 0.0004 Heat Loss%≤ 0.3 0.3 0.3 HCL Insoluble Master%≤ 0.01 0.01 0.01 Water Soluble Matter%≤ 0.1 0.1 0.1 45um Sieve Residue%≤ 0.15 0.15 0.15