| Items | Limits | Results |
| Appearance | White crystalline powder | Conforms |
Specific rotation  |
+13.5~+15.5° | +14.6° |
| Chloride(Cl) | ≤0.05% | ＜0.05% |
| Iron(Fe) | ≤10ppm | ＜10ppm |
| Arsenic(As2O3) | ≤2ppm | ＜2ppm |
| Heavy metals(Pb) | ≤10ppm | ＜10ppm |
| Loss on drying | ≤0.2% | 0.12% |
| Residue on ignition (Sulfated) |
≤0.10% | 0.04% |
| Assay（dry basis） | ≥98.0% | 99.2% |
| E.Coli | Negative | Negative |
| Salmonella | Negative | Negative |
| Conclusion: The Product Conforms to The In-house standard |
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