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ISO 22412:2017

Particle size analysis - Dynamic light scattering (DLS)
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ISO 22412:2017

Particle size analysis - Dynamic light scattering (DLS)

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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.

SDO ISO: International Organization for Standardization
Document Number ISO 22412
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO/TC 24/SC 4
Publish Date Document Id Type View
Not Available ISO 22412:2017 Revision