| TESTS | SPECIFICATION | RESULTS |
| Appearance | White or off-white powder | Conform |
| Identification |
|
Conform |
|
Conform | |
| Loss on drying | ≤5.0% | 3.0% |
| PH Value | 5.0~8.0 | 5.90 |
| Residue on ignition | ≤0.4% | 0.05% |
| Water-soluble substances | ≤1.5% | 0.20% |
| Heavy metals | ≤10ppm | ＜10ppm |
| Peroxides | ≤400ppm | ＜400ppm |
| Vinylpyrrolidone(HPLC) | ≤10ppm | 4.5ppm |
| Nitrogen(on the anhydrous basis) | 11.0%~12.8% | 12.10% |
| Particle size | 50~300um>80% | Conform |
| Total aerobic plate count | ≤100CFU/g | ＜100CFU/g |
| Mold/Yeast | ≤100CFU/g | ＜100CFU/g |
| Staphylococcus Aureus | Negative | Negative |
| Salmonella | Negative | Negative |
| Pseudomonas aeruginosa | Negative | Negative |
| E. Coli | Negative | Negative |
| Conclusion: The Product Conforms to USP/EP. |
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