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ISO 22412:2017

Current
Current

The latest, up-to-date edition.

Particle size analysis — Dynamic light scattering (DLS)
Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English

Published date

02-06-2017

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.

DevelopmentNote
Supersedes ISO/DIS 22412 and ISO 13321. (02/2017)
DocumentType
Standard
Pages
34
PublisherName
International Organization for Standardization
Status
Current
Supersedes

Standards Relationship
JIS Z 8828:2019 Identical
BS ISO 22412:2017 Identical
NEN ISO 22412 : 2017 Identical
SAC GB/T 29022 : 2012 Identical

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