prBAS ISO 21501-1:2027
Determination of particle size distribution — Single particle light interaction methods — Part 1: Light scattering aerosol spectrometer
General information
Status:Project
Number of pages:41
Adoption method:Korice
Language:engleski
Edition:2.
Realization date:15.10.2026
Forseen date for next stage code:22.10.2026
Technical committee:BAS/TC 9, Cement, gypsum, lime and other inorganic bonded materials
ICS:
19.120, Particle size analysis. Sieving
Abstract
This document specifies characteristics of a light scattering aerosol spectrometer (LSAS) which is used for measuring the size, number concentration and number-based size distribution of particles suspended in a gas. This document provide the calibration procedure and the validation method for aerosol spectrometers.
This document applies to:
— characterization of metered dose inhalers (MDI), dry powder inhalers (DPI) and nebulizers in pharmacy;
— production control of active agents;
— cut-off determination: impactors, cyclones and impingers;
— atmospheric aerosols: bio-aerosols, stables or composting facilities, nebulized droplets, measurements in street tunnels;
— fractional separation efficiency determination of filters.
Lifecycle
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Original document and degree of correspondence
ISO 21501-1:2025, identical
Relation to BAS standards
Work material
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