60.60 Standard published Apr 3, 2019
CEN
CEN/TC 195 Cleaning equipment for air and other gases
Technical Specification
91.140.30 Ventilation and air-conditioning systems
Published
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.
PUBLISHED
CEN ISO/TS 21083-2:2019
60.60
Standard published
Apr 3, 2019