Table 3. Characteristics of powder blend, formulated herbal tablets, and flow ability scale range.
| Characteristics of Powder blend | Bulk density (g/ml) | Tapped density (g/ml) | Carr’s index (%) | Hausner’s ratio | Angle of Repose (°) | |
|---|---|---|---|---|---|---|
| 0.46 | 0.52 | 8 | 1.21 | 32.1 | ||
| Characteristics of formulated Tablets | Hardness (kg/cm2) | Thickness (mm2) | Weight Variation (%) | Friability (%) | Disintegration Time (min) | Dissolution |
| 6.2 to 7.0 | 6.18 ± 0.05 | 1.28 ± 0.03 | 0.36 ± 0.14 | 8.4 ± 0.11 | NLT 75% of the labeled amount dissolved in 60 minutes | |
| Flowability Scale | Flow Parameter | Compressibility Index | Hausner Ratio | Angle of Repose | ||
| Excellent | < 10 | 1 to 1.2 | < 20 | |||
| Good | 11 to 15 | < 1.25 | 21–30 | |||
| Fair | < 15 | < 1.25 | > 30 | |||
| Pass | 20–25 | ≥ 1.34 | 30–40 | |||
| Poor | 20–25 | ≥ 1.34 | 30–40 | |||
| Very poor | > 30 | < 1.45 | — | |||
| Rejected | >38 | >1.6 | — | |||