Grade of powder.ppt
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This document discusses the grading and size separation of powders. It separates powders into categories based on mesh size, from coarse to very fine, and explains that size separation is important for uniform dosage formulation, preparing granules of a required size, and removing undesirable particles. The objectives are to define powder grades and classify methods of size separation.
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Grade of powder.ppt
- 1. KASHISH WILSON Grade of Powders and size seperation 1
- 2. 2 Size separation: • Separation of the particles according to their sizes Importance: • To formulate a uniform dosage form • To prepare granules of required size • To separate undesirable particles
- 3. 3 Objectives •Grades of powders • Classification of size separation
- 4. 4 Grading of powders Coarse powder : 10/44 Moderately coarse powder : 22/60 Moderately fine powder : 44/85 Fine powder : 85 Very fine powder : 120