| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Appearance | Fine white scales or powder | Conforms |
| Color of Solution | Must not be deeper than the standard color BY6 | Conforms |
| Clarity | Clear | Conforms |
| Acid | ≤2.0ml | 1.0ml |
| Loss on drying | ≤0.5% | 0.23% |
| Chloride | ≤200ppm | <200ppm |
| Heavy metals | ≤20ppm | <20ppm |
| Sulfate | ≤600ppm | <600ppm |
| Sulfite | ≤0.15ml | 0.05ml |
| Assay | 99.0%~101.0% | 99.87% |
| Conclusion: The Product Conforms to CP/USP. |
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