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

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

Standard Number ONR CEN ISO / TS 21083-2: 2020 04 15
Organization Austrian Standards Institute Austria
Level National
Category Test Method | Characterization | Measurement
Status
  • APR 2020 Published
ABSTRACT
This document specifies the test instruments and test methods for determining the filtration efficiency of flat filter media against nano suspended matter particles in the size range between 3 nm and 30 nm. The test methods in this document are limited to spherical or almost spherical particles in order to avoid uncertainties due to the particle shape.