| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Appearance | White or light yellow crystals powder | Conforms |
| Calcium (Ca) | ≤0.036% | 0.035% |
| Sulphide(S) | ≤0.003% | 0.0026% |
| Iron (Fe) | ≤0.001% | 0.0008% |
| Water insoluble matter | ≤0.05% | 0.041% |
| Assay | ≥99.0% | 99.06% |
| Conclusion: The Product Conforms to Enterprise Standard. |
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