This document specifies the testing instruments and procedure for determining the filtration efficiencies of flat sheet filter media against airborne nanoparticles in the range of 3 nm to 30 nm. The testing methods in this document are limited to spherical or nearly-spherical particles to avoid uncertainties due to the particle shape.
Status: PublishedPublication date: 2019-03
Edition: 1Number of pages: 52
Technical Committee: ISO/TC 142 Cleaning equipment for air and other gases
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