BS ISO 21501-3:2019 - Determination of particle size distribution. Single particle light interaction methods. Light extinction liquid-borne particle counter

BS ISO 21501-3:2019

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

Status : Current   Published : December 2019

Format
PDF

Format
HARDCOPY



This document describes a calibration and verification method for a light extinction liquid-borne particle counter (LELPC), which is used to measure the size and particle number concentration of particles suspended in liquid. The light extinction method described in this document is based on single particle measurements. The typical size range of particles measured by this method is between 1 µm and 100 µm in particle size.

The method is applicable to instruments used for the evaluation of the cleanliness of pharmaceutical products (e.g. injections, water for injections, infusions), as well as the measurement of number and size distribution of particles in various liquids.

The following are within the scope of this document:

  • size setting error;

  • counting efficiency;

  • size resolution;

  • 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 21501-3:2019
TitleDetermination of particle size distribution. Single particle light interaction methods. Light extinction liquid-borne particle counter
StatusCurrent
Publication Date04 December 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 Guide 98-3, JIS B 9916:2010, ISO/IEC 17025
ReplacesBS ISO 21501-3:2007
International RelationshipsISO 21501-3:2019
Draft Superseded By19/30385918 DC
DescriptorsParticle size distribution, Light divergence, Liquids, Test equipment, Particulate materials, Calibration, Contaminants, Counting, Optical measurement, Particle size measurement, Verification, Suspensions (chemical)
ICS19.120
Title in FrenchDétermination de la distribution granulométrique. Méthodes d'interaction lumineuse de particules uniques Compteur de particules en suspension dans un liquide par extinction de la lumière
CommitteeLBI/37
ISBN978 0 539 02808 9
PublisherBSI
FormatA4
DeliveryYes
Pages28
File Size2.536 MB
Price£182.00


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