Test method for measuring the efficiency of air filtration materials against spherical nanomaterials - Part 1: Particle size range between 20 nm and 500 nm

Test method for measuring the efficiency of air filtration materials against spherical nanomaterials - Part 1: Particle size range between 20 nm and 500 nm

Standard Number UNI EN ISO 21083-1: 2019
Organization Italian National Unification Italy
Level National
Category Test Method | Characterization | Measurement
Status
  • FEB 2019 Published
ABSTRACT
The standard specifies the instruments and test procedures for determining the spectral efficiency of flat filter materials with respect to nanoparticles dispersed in the air having dimensions between 20 nm and 500 nm. The test methods described in this document are limited to spherical or quasi-spherical particles to avoid uncertainties due to the shape of the particles.