Test method for measuring the effectiveness of air filtration media against spherical nanomaterials - Part 1: Particle size range from 20 nm to 500 nm

Test method for measuring the effectiveness of air filtration media against spherical nanomaterials - Part 1: Particle size range from 20 nm to 500 nm

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Standard Number DS/EN ISO 21083-1:2018
Organization Danish Standards Denmark
Level National
Category Test Method | Characterization | Measurement
Status
  • DEC 2018 Published
ABSTRACT

This document specifies the testing instruments and procedure for determining the fractional filtration efficiencies of flat sheet filter medium against airborne nanoparticles in the range of 20 nm to 500 nm. The testing methods in this document are limited to spherical or nearly-spherical particles to avoid uncertainties due to the particle shape.