| TESTING ITEMS | SPECIFICATION | RESULTS |
| Description | White crystal powder | Conforms |
| Non-volatile matter | ≥99.0% | 99.3% |
| Water content | ≤0.5% | 0.3% |
| Iron content | ≤0.0005% | 0.0001% |
| Heavy metals (Pb) | ≤0.002% | 0.001% |
| Color | ≤80 | 35 |
| Assay | ≥99.2% | 99.8% |
| Conclusion: The Product Conforms to Enterprise Standard. |
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