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| Specification | Indices |
| Zinc oxide(dry),% ≥ | 99.0-100.5 |
| iron(Fe), ppm ≤ | 200 |
| lead(Pb),ppm ≤ | 50 |
| arsenic(As),ppm ≤ | 5 |
| cadmium(Cd),ppm ≤ | 10 |
| Burning weight loss(500'C),% ≤ | 1.0 |
| alkalinity | qualified |
| Carbonate and HCI insoluble matter | qualified |




