Test method for measuring the effectiveness of air filtration media against spherical nanomaterials - Part 2: Particle size range from 3 nm to 30 nm
| Standard Number | DS/ISO/TS 21083-2:2019 |
|---|---|
| Organization |
Danish Standards
|
| Level | National |
| Category | Test Method | Characterization | Measurement |
| Status |
|
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.