Guide3.2
Key terms
| Term | Meaning |
|---|---|
| Blend uniformity | How evenly the ingredients are distributed throughout the blend, measured by testing samples from several locations. |
| Segregation (de-mixing) | Particles separating by size, density or shape after blending or during handling. It can undo a good blend. |
| Under-blending | Blend time too short; ingredients not evenly distributed, giving sub- or super-potent units. |
| Over-blending | Blend time too long; can cause de-mixing, and in lubricated blends, over-lubrication that slows dissolution. |
| Critical process parameters | For a tumble blender: blend time, speed (rpm) and fill level. All must stay within validated ranges. |
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