Mean Particle Diameters. Part I: Evaluation of definition systems

Abstract

Mean particle diameters are important for the science of particulate systems because they provide information on particlesize distributions in such a way that they can be related to physical or physiological processes or product properties. There are different notation systems for such mean diameters which may cause much confusion. This equally applies to their nomenclature. The present paper is concerned with comments on the “Moment‐Ratio” and German (DIN) notations. The Moment‐Ratio notation is recommended for standardization. A more extensive contribution of statistics to the science of particulate systems is recommended.

Determination of water droplet size distribution in butter: Pulsed field gradient NMR in comparison with confocal scanning laser microscopy

“…The number-weighted geometric mean diameterD 0;0 can be calculated with Eq. (2) (Alderliesten, 1990):…”

Polymorphism, microstructure and rheology of butter. Effects of cream heat treatment

“…The shown results are the average of three runs. The size distribution is given by the volume-weighted geometric mean diameter (d 3,3 ), as defined by Alderliesten (1990).…”

Measurement of Oil Droplet Size Distributions in Food Oil/Water Emulsions by Time Domain Pulsed Field Gradient NMR

“…[2] Here P(a) is the droplet size distribution function, which for lognormal distributions is characterized by the volume weighted geometric mean diameter D 3.3 and width σ (10,11). These formulas represent a broad class of emulsions.…”

“…As most commercial available techniques commonly express the oil droplet size distribution as D 3.2 (surface weighed mean diameter) and σ , the calculated results from the td-NMR measurements are transformed according to (10,11) …”