1 Appearance white power
2 ZnO(by dry basis) % ≥ 99.7
3 metal (by Zn idea) % ≥ none
4 Lead oxide(by Pb idea) % ≤ 0.037
5 Insoluble matter in HCL % ≤ 0.2
6 Loss on ignition% ≤ 0.2
7 Residue（on 45um screen）% ≤ 0.1
8 Water soluble matter ≤ 0.1
9 105℃volatile% ≤ 0.3