Objavljen
This document specifies the testing instruments and procedure for determining the fractional filtration efficiencies of flat sheet filter medium against airborne nanoparticles in the range of 20 nm to 500 nm. The testing methods in this document are limited to spherical or nearly-spherical particles to avoid uncertainties due to the particle shape.
OBJAVLJEN
ISO 21083-1:2018
90.93
Odluka o potvrđivanju standarda
11. 3. 2024.
Metode ispitivanja efikasnosti sredstava za filtraciju protiv sferičnih nanomaterijala – Deo 1: Opseg veličina od 20 nm do 500 nm
60.60 Standard objavljen