NF EN ISO 29462

NF EN ISO 29462

August 2022
Standard Current

Field testing of general ventilation filtration devices and systems for in situ removal efficiency by particle size and resistance to airflow

This document describes a procedure for measuring the performance of general ventilation air cleaning devices in their end use installed configuration. The performance measurements include removal efficiency by particle size and the resistance to airflow. The test procedures include the definition and reporting of the system airflow. The procedure describes a method of counting ambient air particles of 0,3 μm to 5,0 μm upstream and downstream of the in-place air cleaner(s) in a functioning air handling system. The procedure describes the reduction of particle counter data to calculate removal efficiency by particle size. Since filter installations vary dramatically in design and shape, a protocol for evaluating the suitability of a site for filter evaluation and for system evaluation is included. When the evaluated site conditions meet the minimum criteria established for system evaluation, the performance evaluation of the system can also be performed according to this procedure. This document also describes performance specifications for the testing equipment and defines procedures for calculating and reporting the results. This document is not intended for measuring performance of portable or movable room air cleaners or for evaluation of filter installations with an expected filtration efficiency at or above 99 % or at or below 30 % when measured at 0,4 μm.

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Main informations

Collections

National standards and national normative documents

Publication date

August 2022

Number of pages

52 p.

Reference

NF EN ISO 29462

ICS Codes

91.140.30   Ventilation and air-conditioning systems

Classification index

X44-018

Print number

1

International kinship

European kinship

EN ISO 29462:2022
Sumary
Field testing of general ventilation filtration devices and systems for in situ removal efficiency by particle size and resistance to airflow

This document describes a procedure for measuring the performance of general ventilation air cleaning devices in their end use installed configuration. The performance measurements include removal efficiency by particle size and the resistance to airflow. The test procedures include the definition and reporting of the system airflow.

The procedure describes a method of counting ambient air particles of 0,3 μm to 5,0 μm upstream and downstream of the in-place air cleaner(s) in a functioning air handling system. The procedure describes the reduction of particle counter data to calculate removal efficiency by particle size.

Since filter installations vary dramatically in design and shape, a protocol for evaluating the suitability of a site for filter evaluation and for system evaluation is included. When the evaluated site conditions meet the minimum criteria established for system evaluation, the performance evaluation of the system can also be performed according to this procedure.

This document also describes performance specifications for the testing equipment and defines procedures for calculating and reporting the results. This document is not intended for measuring performance of portable or movable room air cleaners or for evaluation of filter installations with an expected filtration efficiency at or above 99 % or at or below 30 % when measured at 0,4 μm.

Replaced standards (1)
NF EN ISO 29462
June 2013
Standard Cancelled
Field testing of general ventilation filtration devices and systems for in situ removal efficiency by particle size and resistance to airflow

<p>ISO 29462:2013 describes a procedure for measuring the performance of general ventilation air cleaning devices in their end use installed configuration. The performance measurements include removal efficiency by particle size and the resistance to airflow. The procedures for test include the definition and reporting of the system airflow.</p> <p>The procedure describes a method of counting ambient air particles of 0,3 μm to 5,0 μm upstream and downstream of the in-place air cleaner(s) in a functioning air handling system. The procedure describes the reduction of particle counter data to calculate removal efficiency by particle size.</p> <p>Since filter installations vary dramatically in design and shape, a protocol for evaluating the suitability of a site for filter evaluation and for system evaluation is included. When the evaluated site conditions meet the minimum criteria established for system evaluation, the performance evaluation of the system can also be performed according to this procedure.</p> <p>ISO 29462:2013 also describes performance specifications for the testing equipment and defines procedures for calculating and reporting the results. This International Standard is not intended for measuring performance of portable or movable room air cleaners or for evaluation of filter installations with and expected filtration efficiency at or above 99 % or at or below 30 % when measured at 0,4 μm.</p>

Table of contents
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  • Avant-propos
  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes, définitions, et termes abrégés
  • 4 Matériel d'essai et réglages
  • 5 Évaluation du site
  • 6 Mode opératoire des essais
  • 7 Expression des résultats
  • 8 Analyses des erreurs et données
  • 9 Calcul des résultats
  • 10 Système d'essai renforcé facultatif
  • Annexe A (informative) Formulaire d'inspection de l'installation de filtration préalable à l'essai
  • Annexe B (informative) Formulaire d'approbation d'essai
  • Annexe C (informative) Exemple de réalisation d'un essai
  • Bibliographie
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