ISO 13320:2020
Particle size analysis — Laser diffraction methods
| Fecha edición: |
2020-01-06
En Vigor
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| Idiomas disponibles: | Inglés |
| Resumen: | This document 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. This document 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). |
| ICS: | 19.120 - Análisis dimensional de partículas. Tamizado. |
| CTN: | ISO/TC 24/SC 4 - 47176 |
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Anulaciones Normas |
Anula a ISO 13320:2009 |










