Test method for measuring the efficiency of filter materials for air against spherical nanomaterials - Part 2: Particle size range between 3 nm and 30 nm

Test method for measuring the efficiency of filter materials for air against spherical nanomaterials - Part 2: Particle size range between 3 nm and 30 nm

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Standard Number UNI CEN ISO / TS 21083-2: 2019
Organization Italian National Unification Italy
Level National
Category Test Method | Characterization | Measurement
Status
  • JUN 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 3 nm and 30 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.