Introduction to Powder Testing

The widespread use of powders in the pharmaceutical industry has led to a proliferation of test methods for measuring powder flow and density.

The new harmonised chapters in the Pharmacopoeias on Powder Flow (USP Chapter <1174> and Ph.Eur. 2.9.36) list four well defined methods for powder testing aimed at trying to bring about some degree of standardisation within the test methodology:

  • Flow through an orifice
  • Angle of Repose
  • Shear Cell
  • Compressibility Index and Hausner Ratio

The new Flowability Tester BEP2 provides a range of options for testing pharmaceutical powders including three of the four methods quoted in the Pharmacopoeias – flow through an orifice, angle of repose and shear cell – in a single, cost effective unit.

For compressibility index and Hausner ratio testing, we offer a series of tapped density testers and the bulk density tester (Scott Volumeter), detailed monographs for which feature in USP Chapter <616> and Ph.Eur. Chapter 2.9.15.

For comprehensive product details, specifications and part numbers, please request a copy of our brochure “Quality Solutions for the Testing of Pharmaceuticals”.