| Appearance | Fine powder, light brown to greenish color |
| Odor | Characteristic, slight herbal odor |
| Taste | Bitter and slightly astringent |
| Particle Size | 80-100 mesh (typical) |
| Loss on Drying | ≤ 5% |
| Ash Content | ≤ 10% |
| Bulk Density | 0.3 – 0.6 g/cm³ |
| Solubility | Insoluble in water, soluble in ethanol |
| Moisture Content | ≤ 10% |
| Heavy Metals | Lead (Pb) ≤ 10 ppm, Arsenic (As) ≤ 2 ppm |
| Microbial Limits | Total Plate Count ≤ 1,000 cfu/g |
| Pesticide Residues | Within acceptable limits as per regulations |