| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Appearance | White or almost white crystalline powder | Conforms |
| Identification | Meet the requirement | Conforms |
| Loss on drying | ≤0.50% | 0.20% |
| Residue on ignition | ≤0.20% | 0.10% |
| Heavy metals | ≤20ppm | <20ppm |
| Assay | ≥99.0% | 99.11% |
| Conclusion: The Product Conforms to Enterprise Standard. |
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