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 - 2011 EDITION - 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)