Test method to measure the efficiency of air filtration media against spherical nanomaterials — Part 2: Size range from 3 nm to 30 nm

Test method to measure the efficiency of air filtration media against spherical nanomaterials — Part 2: Size range from 3 nm to 30 nm

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Standard Number ISO/TS 21083-2:2019
Organization International Organization for Standardization World
Level International
Category Test Method | Characterization | Measurement
Status
  • MAR 2019 Published
  • SEP 2022 Reviewed and Confirmed
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.