95.99 Withdrawal of Standard Jan 6, 2020
ISO
ISO/TC 24/SC 4 Particle characterization
International Standard
19.120 Particle size analysis. Sieving
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).
WITHDRAWN
ISO 13320-1:1999
WITHDRAWN
ISO 13320:2009
95.99
Withdrawal of Standard
Jan 6, 2020
PUBLISHED
ISO 13320:2020