SS-EN-ISO-28439 › Workplace atmospheres - Characterization of ultrafine aerosols/nanoaerosols - Determining of the size distribution and number concentration using differential electrical mobility analysing systems (ISO 28439:2011)
SS-EN-ISO-28439
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2011 EDITION
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CURRENT
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This International Standard provides guidelines for the determination of the number concentration and size distribution of ultrafine aerosols and nanoaerosols by use of mobility particle sizers (also called differential mobility analysers). Only the particle fraction of the aerosol is considered. For ultrafine aerosols and nanoaerosols, exposure metrics such as the number and surface area concentration are important. This International Standard also gives guidelines for the determination of workplace exposure to ultrafine aerosols and nanoaerosols. Specifically, the differential mobility analysing system (DMAS), now available from several vendors, is discussed. Principles of operation, problems of sampling in the workplace environment, calibration, equipment maintenance, measurement uncertainty, and reporting of measurement results are covered. Potential problems and limitations are described, which need to be addressed when limit values are fixed and compliance measurements carried out.
To find similar documents by classification:
13.040.30 (Workplace atmospheres Air quality of surgery rooms, see 11.080.01)
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Designation Name
SS-EN ISO 28439:2011
Revision Level
2011 EDITION
Status
Current
Publication Date
April 11, 2011
Language(s)
English
Page Count
32
International Equivalent
EN ISO 28439:2011(IDT); ISO 28439:2011(IDT)