| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Appearance | White crystalline powder | Conforms |
| Identification | Meet the requirement | Conforms |
| Transmittance | ≥98.0% | 98.5% |
| Chloride | ≤0.02% | <0.02% |
| Ammonium | ≤0.02% | <0.02% |
| Sulfate | ≤0.03% | <0.03% |
| Iron | ≤30ppm | <30ppm |
| Heavy metals | ≤10ppm | <10ppm |
| Arsenic | ≤1ppm | <1ppm |
| Loss on drying | ≤0.20% | 0.12% |
| Residue on ignition | ≤0.10% | 0.03% |
| Assay | 99.0%~101.0% | 99.62% |
| Conclusion: The Product Conforms to AJI/USP. |
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