ISO 22412:2017
2017-02
Abstract
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.
General information
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Status: PublishedPublication date: 2017-02Stage: International Standard to be revised [90.92]
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Edition: 2Number of pages: 34
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Technical Committee :ISO/TC 24/SC 4ICS :19.120
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Life cycle
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Previously
WithdrawnISO 13321:1996
WithdrawnISO 22412:2008
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Now
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Will be replaced by
Under developmentISO/FDIS 22412
