| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Appearance | White powder | Conforms |
| Solubility | Practically insoluble in water | Conforms |
| Acetic Acid insoluble | ≤0.2% | 0.04% |
| Chloride | ≤330ppm | <300ppm |
| Sulfate | ≤0.25% | <0.25% |
| Arsenic | ≤4ppm | <2ppm |
| Barium | Opalescence is not | Conforms |
| Iron | ≤200ppm | <200ppm |
| Magnesium and alkali metals | ≤.5% | 0.43% |
| Loss on drying | ≤2.0% | 0.18% |
| Sieve residue of 325mesh | ≤0.1% | <0.05% |
| Bulk density | 0.65~0.95 | 0.82 |
| Assay | 98.5%~100.5% | 98.60% |
| Conclusion: The Product Conforms to USP41/BP2019. |
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