Eye-opening Review of Particle Size Reference Standards Enthuses USP Workshop Participants


10 February 2011; Chester, UK: A paper reviewing the development of reference standards over three decades, given at last December's USP Workshop on Particle Size in Rockville MD, received a warm welcome from delegates. Presenter Dr Graham Rideal of Whitehouse Scientific was delighted with the level of interest his talk elicited at the event, which has translated into continuing requests for the paper itself.

"Particle size reference standards have been in continuous development for the past 30 years," said Dr Rideal. "They have responded to advances in particle sizing instrumentation, the most notable of which have been in the field of laser diffraction. Today many different methods of particle sizing are in use, from sieving, one of the oldest, to automated image analysis, one of the newest. Each has its challenges and appropriate reference standards are more essential than ever."

Download a copy of 'The development of particle size reference standards' by Graham Rideal and Jamie Storey at www.whitehousescientific.com

About Whitehouse Scientific

Whitehouse Scientific is a leading producer of glass microspheres for calibration and is the highest ranking European certification laboratory for primary methods of particle size analysis. The company's standards cover all particle sizing techniques including laser diffraction, Coulter methods, optical sizing, sieve calibration and image analysis. Most of these reference materials are NIST-traceable. They range in size from 0.1 micron to 5.0 millimetres and are available as single sizes or broad distribution standards. In addition, Whitehouse offers a unique calibration procedure for NIST-traceable measurement of filter apertures between 3 and 1000 microns, and also produces general purpose research grade microspheres.

Whitehouse Scientific has been producing calibration microspheres for more than 25 years. Founder and managing director Dr Graham Rideal is a past chairman of The Filtration Society, and is now active as its Science Correspondent. He is a member of the 'Editorial Advisory Board' for Filtration News Magazine, USA.

www.whitehousescientific.com

All Topics