BS ISO 13320:2020
Particle size analysis. Laser diffraction methods

Standard No.
BS ISO 13320:2020
Release Date
2020
Published By
British Standards Institution (BSI)
Latest
BS ISO 13320:2020
Scope
What is ISO 13320  - Laser diffraction method about? ISO 13320 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. ISO 13320 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 spherical and 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. For non-spherical particles, the resulting particle size distribution is different from that obtained by methods based on other physical principles (e.g., sedimentation, sieving). Who is ISO 13320 - Laser diffraction method f or? ISO 13320 on laser diffraction methods is relevant to: Testing authorities of microbiological and chemical test methods Physi...

BS ISO 13320:2020 history

Particle size analysis. Laser diffraction methods



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