KS I ISO 28439:2013 Workplace atmospheres ― Characterization of ultrafine aerosols/ nanoaerosols ― Determination of the size distribution and number concentration using differential electrical mobility analysing systems
This standard provides guidance for measuring the number concentration and size distribution of ultrafine and nanoaerosols using moving particle meters (also known as differential mobility analyzers). At this time, only the particle size fraction of the aerosol is considered. For ultrafine aerosols and nanoaerosols, exposure matrices such as number and surface area concentrations are important. This standard also provides guidance for measuring workplace exposure to ultrafine aerosols and nanoaerosols. In particular, several current suppliers The differential mobility analysis system (DMAS) commercially available from the company is discussed. It also covers operating principles, sampling issues in a workplace environment, calibration, equipment maintenance, measurement uncertainty, and reporting of measurement results. It also describes potential problems and limitations that must be addressed when taking compliance actions under specified exposure limits.
KS I ISO 28439:2013 history
2019KS I ISO 28439:2019 Workplace atmospheres ― Characterization of ultrafine aerosols/ nanoaerosols ― Determination of the size distribution and number concentration using differential electrical mobility analysing systems
2013KS I ISO 28439:2013 Workplace atmospheres ― Characterization of ultrafine aerosols/ nanoaerosols ― Determination of the size distribution and number concentration using differential electrical mobility analysing systems