Complaint
| Item | Standard |
| Appearance | White powder |
| Glucuronic acid | ≥42.0% |
| Sodium Hyaluronate | ≥91% |
| Protein | ≤0.1% |
| pH | 6.0-7.5 |
| Transparency (in 0.1%aq.sol.,) | ≥99.0% |
| Loss on drying | ≤10.0% |
| Strong heat residue | ≤20% |
| Heavy metals | ≤20ppm |
| Bacterial count | ≤100CFU/g |
| Yeasts & mold | ≤100CFU/g |
