Complaint
| ITEMS | STANDARDS |
| Appearance | White crystals or crystalline powder. Practically odorless,slightly bitter taste. |
| content | ≥98.5% |
| PH | 5.5~7.0 |
| Specific rotation[α]Dt | +38.9°~+41.8° |
| Transmittance | ≥94% |
| Chloride | ≤0.05% |
| Sulfate | ≤0.03% |
| Residue on ignition | ≤0.3% |
Loss on drying | ≤0.3% |
| Iron | ≤0.0030% |
| Heavy metals | ≤0.0015% |
| E. coli | ≤30MPN/g |
| salmonella | No |
| total number of colonies | ≤2000CFU/g |
| Molds and yeasts | ≤100CFU/g |
