BS ISO 21501-2:2019 - Determination of particle size distribution. Single particle light interaction methods. Light scattering liquid-borne particle counter

BS ISO 21501-2:2019

Determination of particle size distribution. Single particle light interaction methods. Light scattering liquid-borne particle counter

Status : Current   Published : November 2019

Format
PDF

Format
HARDCOPY



This document describes a calibration and verification method for a light scattering liquid-borne particle counter (LSLPC), which is used to measure the size and particle number concentration of particles suspended in liquid. The light scattering method described in this document is based on single particle measurements. The typical size range of particles measured by this method is between 0,1 µm and 10 µm in particle size.

The method is applicable to instruments used for the evaluation of the cleanliness of pure water and chemicals, as well as the measurement of number and size distribution of particles in various liquids. The measured particle size using the LSLPC depends on the refractive index of particles and medium; therefore, the measured particle size is equivalent to the calibration particles in pure water.

The following are within the scope of this document:

  • size setting error;

  • counting efficiency;

  • size resolution;

  • false count;

  • maximum particle number concentration;

  • sampling flow rate error;

  • sampling time error;

  • sampling volume error;

  • calibration interval;

  • reporting results from test and calibration.




Standard NumberBS ISO 21501-2:2019
TitleDetermination of particle size distribution. Single particle light interaction methods. Light scattering liquid-borne particle counter
StatusCurrent
Publication Date27 November 2019
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)ISO/IEC Guide 99:2007, ISO 9276-1, ISO/IEC 17025, ISO/IEC Guide 98-3, JIS B 9925:2010
ReplacesBS ISO 21501-2:2007
International RelationshipsISO 21501-2:2019
Draft Superseded By19/30385915 DC
DescriptorsParticulate materials, Optical measurement, Particle size distribution, Light divergence, Counting, Liquids, Verification, Suspensions (chemical), Calibration, Test equipment, Particle size measurement, Contaminants
ICS19.120
Title in FrenchDétermination de la distribution granulométrique. Méthodes d'interaction lumineuse de particules uniques Compteur de particules en suspension dans un liquide en lumière dispersée
CommitteeLBI/37
ISBN978 0 539 02807 2
PublisherBSI
FormatA4
DeliveryYes
Pages30
File Size2.639 MB
Price£182.00


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