| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Appearance | White or almost white crystalline powder | Conforms |
| Identification | Meet the requirement | Conforms |
| Loss on drying | ≤5.5% | 4.4% |
| Ca | 3.0%~3.6% | 3.5% |
| Single impurity | ≤0.3% | 0.02% |
| Total impurities | ≤1.0% | 0.7% |
| Heavy metals | ≤0.002% | 0.0001% |
| Assay | ≥99.0% | 99.25% |
| Conclusion: The Product Conforms to Enterprise Standard. |
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