ISO/TS 21083-2:2019

Test method to measure the efficiency of air filtration media against spherical nanomaterials — Part 2: Size range from 3 nm to 30 nm

Publication date: Mar 22, 2019

General information

Current stage: 90.20 Effective date: Jul 15, 2025

Originator: ISO

Owner: ISO/TC 142

Type: Technical Specification

ICS: 91.140.30

Languages: English French

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Status: Published

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Scope

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.

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PUBLISHED
ISO/TS 21083-2:2019
90.20 Standard under periodical review
Jul 15, 2025

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