Test method to measure the efficiency of air filter media for spherical nanomaterials - Part 1: Particle size from 20 to 500 nm

Test method to measure the efficiency of air filter media for spherical nanomaterials - Part 1: Particle size from 20 to 500 nm

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Standard Number NEN-EN-ISO 21083-1: 2018
Organization Netherlands Standardization Institute Netherlands
Level National
Category Test Method | Characterization | Measurement
Status
  • DEC 2018 Published
ABSTRACT
NEN-EN-ISO 21083-1 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.