Test method to measure the efficiency of air filtration media against spherical nanomaterials - Part 1: Size range from 20 nm to 500 nm (ISO 21083-1:2018)

Test method to measure the efficiency of air filtration media against spherical nanomaterials - Part 1: Size range from 20 nm to 500 nm (ISO 21083-1:2018)

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Standard Number NP EN ISO 21083-1:2018
Organization Portuguese Quality Institute Portugal
Level National
Category Test Method | Characterization | Measurement
Status
  • JAN 2019 Published
ABSTRACT

This document specifies the testing instruments and procedure for determining the fractional filtration efficiencies of flat sheet filter against mediumborne 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 avoidities due to the particle shape.