ISO 21083-1:2018

Name: ISO 21083-1:2018 — Test method to measure the efficiency of air filtration media against spherical nanomaterials — Part 1: Size range from 20 nm to 500 nm
SKU: ISO 21083-1:2018
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Test method to measure the efficiency of air filtration media against spherical nanomaterials — Part 1: Size range from 20 nm to 500 nm

Название (английский):

ISO 21083-1:2018

Test method to measure the efficiency of air filtration media against spherical nanomaterials — Part 1: Size range from 20 nm to 500 nm

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 52
Дата публикации:: 12 ноября 2018 г.
Издание:: ISO IS 21083 edition 1 version 1
ICS:: 91.140.30

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Описание (английский):

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.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 21083-1:2018 defines a standardized test method to measure the efficiency of air filtration media against spherical nanomaterials in the size range 20 nm to 500 nm. The standard specifies the testing instruments, test rig configuration and step‑by‑step procedures to determine fractional filtration efficiencies of flat‑sheet filter media when challenged with airborne, spherical (or nearly spherical) nanoparticles. Test methods are deliberately limited to near‑spherical particles to reduce uncertainty from particle shape.

Key topics and technical requirements

Test scope: Filtration efficiency measurement for flat sheet filter media against nanoparticles from 20–500 nm; spherical particle limitation.

Test aerosols: Includes liquid‑phase aerosol generation (e.g., DEHS test aerosol) and procedures for aerosol conditioning.

Instrumentation & setup: Detailed requirements for aerosol generation, tubing, dryers, neutralizers, CPC instruments, DEMC components, make‑up air lines and filter mounting assemblies.

Neutralization & charge control: Procedures to establish equilibrium charge distribution and qualification of aerosol neutralizers to limit electrostatic artefacts.

Qualification & calibration: Tests for CPC performance (zero, overload, counting accuracy), DEMC qualification, leak checks, aerosol uniformity and neutralizer checks.

Test procedure: Preparatory checks, airflow and pressure‑drop measurement, zero‑count tests, leakage and loading effect tests, and protocols for measuring upstream/downstream concentrations (single or dual CPC setups).

Data quality: Statistical treatment (precision per ISO 5725‑2), measurement uncertainty assessment and required reporting elements.

Safety & maintenance: Annexes cover instrument specifications, safe use of solvents (IPA) and handling of radioactive devices where applicable.

Applications and who uses it

Filter manufacturers: Validate and compare filter media performance against nanoparticle penetration.

Independent test laboratories: Provide accredited test reports for product certification and regulatory compliance.

PPE and respirator developers: Assess filter elements used in personal protective equipment against nanoscale aerosol exposures.

HVAC and cleanroom engineers: Specify filters for environments sensitive to nanoparticle contamination.

Occupational health & environmental agencies: Establish test-backed performance claims for air pollution control and workplace safety.

Related standards

ISO 21083 series (other parts) - related test ranges and methods

ISO/TS 80004‑2 - nano definitions and terminology

ISO 29461‑1 - referenced for filter medium neutralization

ISO/TS 19713‑1 and ISO 5725‑2 - neutralizer qualification and statistical precision guidance

Keywords: ISO 21083-1:2018, air filtration media, nanoparticle filtration, filtration efficiency, DEHS aerosol, CPC, aerosol testing, 20 nm to 500 nm, neutralizer, test rig qualification.

ISO 21083-1:2018

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and who uses it

Related standards

Технические детали

ISO 5725-2:1994

Accuracy (trueness and precision) of measurement methods and results — Part 2: Basic method for the determina…

ISO TS 80004-2:2015

Nanotechnologies - Vocabulary - Part 2: Nano-objects

BS EN ISO 29461-1:2021

Air intake filter systems for rotary machinery. Test methods. Static filter elements.

ISO/TS 19713-1:2010

Road vehicles — Inlet air cleaning equipment for internal combustion engines and compressors — Part 1: Fracti…