| Items | Standards | ||
| Description | White, crystalline powder | ||
| Assay (%) | 98.0 ~ 100.5 | ||
| Loss on drying (%) | 0.25 Max | ||
| Specific Rotation | +95.5°~ +98.0° | ||
| Oxalate | Passes Test | ||
| PH Value | 5.5~8.0 | ||
| Heavy Metals (as Pb) (mg/kg) | 10 Max | ||
| Lead(mg/kg) | 2 Max | ||
| Arsenic(mg/kg) | 3 Max | ||
| Mercury(mg/kg) | 1 Max | ||
| Clarity | Passes test |
| Item | Standard |
| Appearance | White crystalline powder |
| Identification | Positive |
| Assay (C6H7O6Na·H2O) | 98.0%~100.5% |
| Specific rotation[α]D25° | +95.5°~+98.0° |
| Oxalate | passes test |
| pH(1:20) | 5.5~8.0 |
| Lead | 2PPM Max |
| Heavy metals(as Pb) | 10PPM Max |
| Arsenic | 3PPM Max |
| Loss on drying | 0.25% Max |