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Particle size analysis — Dynamic light scattering (DLS)
| 분야 | ISO/TC 24/SC 4 : Particle characterization |
|---|---|
| 적용범위 | 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. |
| 국제분류(ICS)코드 | 19.120 : 입도 분석. 체가름 |
| 페이지수 | 34 |
| Edition | 2 |
| No. | 표준번호 | 표준명 | 발행일 | 상태 |
|---|---|---|---|---|
| 1 | ISO 22412:2017 | Particle size analysis — Dynamic light scattering (DLS) | 2017-02-06 | 표준 |
| 2 | ISO 22412:2008 | Particle size analysis — Dynamic light scattering (DLS) | 2008-04-24 | 구판 |
| 3 | ISO/DIS 22412 | Particle size analysis — Dynamic light scattering (DLS) | 초안 |
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