Mingard, K P; Morrell, R; Jackson, P*; Lawson, S*; Patel, S*; Buxton, R* (2009) Improving the consistency of particle size measurement. Measurement Good Practice Guide. 111

Preview

Text (Measurement Good Practice Guide No 111) mgpg111.pdf - Published Version Download (5MB) | Preview

Abstract

The principal causes of variability in particle size measurement, particularly in the sub-sieve range of 50 µm to sub 1 µm are summarised. The causes are illustrated with results of measurements from a series of round robins made to test reproducibility under different levels of prescription in the procedure followed. Improvements of over 50% in coefficient of variability for particle size fractions are shown to be possible when clear procedures are laid down for sampling, dispersion and handling even where different equipment constrains the exact procedure adopted. Users are encouraged to develop clear procedures based on the major factors described in the guide for each different powder encountered.

Item Type:	Report/Guide (Measurement Good Practice Guide)
Notes:	NPL made every effort to ensure all information contained in this Good Practice Guide was correct at time of publication. NPL is not responsible for any errors, omissions or obsolescence, and does not accept any liability arising from the use of these Good Practice Guides.
Keywords:	Powder, particle size measurement
Subjects:	Advanced Materials Advanced Materials > Powder Route Materials
Last Modified:	23 Feb 2026 08:50
URI:	https://eprintspublications.npl.co.uk/id/eprint/4413