ISO 22412:2017
p
ISO 22412:2017
65410
Indisponible en français

État actuel : Publiée (Sera révisée)

Cette norme sera remplacée parISO/CD 22412
fr
Format Langue
std 1 151 PDF
std 2 151 Papier
  • CHF151
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Résumé

ISO 22412:2017 specifies the application of dynamic light scattering (DLS) to the measurement of average hydrodynamic particle size and the measurement of the size distribution of mainly submicrometre-sized particles, emulsions or fine bubbles dispersed in liquids. DLS is also referred to as "quasi-elastic light scattering (QELS)" and "photon correlation spectroscopy (PCS)," although PCS actually is one of the measurement techniques.

ISO 22412:2017 is applicable to the measurement of a broad range of dilute and concentrated suspensions. The principle of dynamic light scattering for a concentrated suspension is the same as for a dilute suspension. However, specific requirements for the instrument setup and specification of test sample preparation are required for concentrated suspensions. At high concentrations, particle-particle interactions and multiple light scattering can become dominant and can result in apparent particle sizes that differ between concentrated and dilute suspensions.

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Informations générales

  •  : Publiée
     : 2017-02
    : Norme internationale à réviser [90.92]
  •  : 2
  • ISO/TC 24/SC 4
    19.120 
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