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ISO 9276-2:2001 Representation of results of particle size analysis -- Part 2: Calculation of average particle sizes/diameters and moments from particle size distributions
standard by International Organization for Standardization, 04/01/2001
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The object of this part of ISO 9276 is to provide the relevant equations for the calculation of average particle sizes or average particle diameters and moments from a given particle size distribution. It is assumed that the size distribution is available as a histogram. It is nevertheless also possible to apply the same mathematical treatment if the particle size distribution is represented by an analytical function.
It is furthermore assumed in this part of ISO 9276 that the particle size x of a particle of any other shape may also be represented by the diameter of an equivalent sphere, e.g. a sphere having the same volume as the particle concerned.