| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Appearance | White crystalline powder | Conforms |
| Identification | Meet the requirement | Conforms |
| Loss on drying | 11.0%~13.0% | 12.4% |
| Sulphate ash | ≤0.04% | 0.01% |
| Heavy metals | ≤0.002% | 0.001% |
| PH | 6.5~8.5 | 7.6 |
| Assay | 98.5%~101.5% | 99.50% |
| Conclusion: The Product Conforms to Enterprise Standard. |
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