ISO-13320 › Historical Revision Information
Particle size analysis - Laser diffraction methods
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ISO 13320:2009 provides guidance on instrument qualification and size distribution measurement of particles in many two-phase systems (e.g. powders, sprays, aerosols, suspensions, emulsions and gas bubbles in liquids) through the analysis of their light-scattering properties. It does not address the specific requirements of particle size measurement of specific materials.
ISO 13320:2009 is applicable to particle sizes ranging from approximately 0,1 µm to 3 mm. With special instrumentation and conditions, the applicable size range can be extended above 3 mm and below 0,1 µm.
For non-spherical particles, a size distribution is reported, where the predicted scattering pattern for the volumetric sum of spherical particles matches the measured scattering pattern. This is because the technique assumes a spherical particle shape in its optical model. The resulting particle size distribution is different from that obtained by methods based on other physical principles (e.g. sedimentation, sieving).
To find similar documents by classification:
19.120 (Particle size analysis. Sieving Including test sieves and porosimetry)
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Document Number
ISO 13320:2009
Revision Level
1ST EDITION REPRINT
Status
Superseded
Publication Date
Dec. 1, 2009
Committee Number
ISO/TC 24/SC 4