Table 2 Reference for visual determination of particle size.
Sl. No. | Appearance of dissolution medium | Particle size range | Grade |
|---|---|---|---|
1 | Transparent | 10–200 nm | MEa |
2 | Translucent | 200–300 nm | MEb |
3 | Fine milky | 300 nm – few µm | E |
4 | Presence of particles | Depends on the API | NE |
