Test method to measure the efficiency of air filtration media against spherical nanomaterials — Part 2: Size range from 3 nm to 30 nm (ISO/TS 21083-2:2019)

Test method to measure the efficiency of air filtration media against spherical nanomaterials — Part 2: Size range from 3 nm to 30 nm (ISO/TS 21083-2:2019)

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Standard Number SN-CEN ISO/TS 21083-2:2019
Organization Standards Norway Norway
Level National
Category Test Method | Characterization | Measurement
Status
  • AUG 2021 Published
ABSTRACT
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.