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
2020BS ISO 13320:2020 Particle size analysis. Laser diffraction methods
2010BS ISO 13320:2010 Particle size analysis. Laser diffraction methods
2010BS ISO 13320:2009 Particle size analysis - Laser diffraction methods
2000BS ISO 13320-1:2000 Particle size analysis - Laser diffraction methods - General principles