Reference number
ISO 21501-1:2009
© ISO 2024
International Standard
ISO 21501-1:2009
Determination of particle size distribution — Single particle light interaction methods — Part 1: Light scattering aerosol spectrometer
Edition 1
2009-06
Preview
Indisponible en français
Publiée (Edition 1, 2009)
Cette publication a été révisée et confirmée pour la dernière fois en 2020. Cette édition reste donc d’actualité.

ISO 21501-1:2009

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CHF 151
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Résumé

ISO 21501-1:2009 specifies characteristics of a light scattering aerosol spectrometer (LSAS) which is used for measuring the size, number concentration and number/size distribution of particles suspended in a gas. The light scattering technique described in this document is based upon single particle measurements. The size range of particles measured by this method is between approximately 0,06 µm to 45 µm in diameter.

Instruments that conform to ISO 21501-1:2009 are used for the determination of the particle size distribution and particle number concentration at relatively high concentrations of up to 1011 particles/m3.

Application fields include: 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/composting facilities, nebulized droplets, measurements in street tunnels; fractional separation efficiency determination of filters.

For the above-mentioned applications, aerosol spectrometers should determine the particle size distribution, particle number concentration, size resolution and sizing accuracy as accurately as possible. These aerosol spectrometers are not suitable for the classification of clean rooms.

Informations générales

  • État actuel
     : Publiée
    Date de publication
     : 2009-06
    Stade
    : Norme internationale à réviser [90.92]
  • Edition
     : 1
  • Comité technique :
    ISO/TC 24/SC 4
    ICS :
    19.120 
  • RSS mises à jour

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