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| Item | STANDARD |
| ZnCl2 zinc chloride | 98%min |
| ZnO | 1.8-2.2 % |
| SO4 | 0.01% max |
| Ba | 0.1% max |
| Fe | 0.0005%max |
| Pb | 0.0005%max |
| Experiment of zinc caustic | pass |