Standard Practice for Calculation of Mean Sizes/Diameters and Standard Deviations of Particle Size Distributions

Standard Number ASTM E2578 - 07(2012)
Organization American Society for Testing and Materials USA
Level National
Category Guide | Practice
  • JAN 2012 Published
1.1 The purpose of this practice is to present procedures for calculating mean sizes and standard deviations of size distributions given as histogram data (see Practice E1617). The particle size is assumed to be the diameter of an equivalent sphere, for example, equivalent (area/surface/volume/perimeter) diameter. 1.2 The mean sizes/diameters are defined according to the Moment-Ratio (M-R) definition system.2,3,4 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.