NF EN ISO 29462

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

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. 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. 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.

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Main informations

Collections

National standards and national normative documents

Publication date

June 2013

Number of pages

56 p.

Reference

NF EN ISO 29462

ICS Codes

91.140.30   Ventilation and air-conditioning systems

Classification index

X44-018

Print number

1 - 29/05/2013

International kinship

European kinship

EN ISO 29462:2013
Sumary
Field testing of general ventilation filtration devices and systems for in situ removal efficiency by particle size and resistance to airflow

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.

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.

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.

Standard replaced by (1)
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

<p>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.</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>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.</p>

Table of contents
View the extract
  • Avant-propos
    v
  • Introduction
    vi
  • 1 Domaine d'application
    1
  • 2 Références normatives
    1
  • 3 Termes, définitions et abréviations
    1
  • 3.1 Termes et définitions
    1
  • 3.2 Abréviations
    3
  • 4 Matériel d'essai et réglages
    3
  • 4.1 Compteur de particules
    3
  • 4.2 Diluteur
    3
  • 4.3 Pompe
    4
  • 4.4 Système d'échantillonnage
    4
  • 4.5 Instrument de mesure de la vitesse de l'air
    6
  • 4.6 Instrument de mesure de l'humidité relative
    6
  • 4.7 Instrument de mesure de la température
    6
  • 4.8 Instrument de mesure de la perte de charge
    7
  • 4.9 Maintenance et étalonnage des matériels d'essai
    7
  • 5 Évaluation du site
    7
  • 5.1 Généralités
    7
  • 5.2 Inspection de l'installation de filtration préalable à l'essai
    7
  • 5.3 Approbation de l'essai
    8
  • 6 Mode opératoire des essais
    8
  • 6.1 Vitesse de l'air
    8
  • 6.2 Humidité relative
    8
  • 6.3 Température
    9
  • 6.4 Perte de charge
    9
  • 6.5 Efficacité d'élimination
    9
  • 6.6 Sondes d'échantillonnage
    13
  • 7 Expression des résultats
    14
  • 7.1 Informations générales
    14
  • 7.2 Recueil de données
    16
  • 8 Analyses des données et des erreurs
    17
  • 8.1 Généralités
    17
  • 8.2 Humidité relative
    17
  • 8.3 Température de l'air
    17
  • 8.4 Composition de l'aérosol
    17
  • 8.5 Uniformité de la concentration de l'aérosol
    17
  • 8.6 Erreurs de coïncidence - Compteur de particules
    17
  • 8.7 Pertes en particules
    18
  • 9 Calcul des résultats
    18
  • 9.1 Calcul de l'efficacité d'élimination
    18
  • 9.2 Calcul de l'incertitude
    20
  • 9.3 Coefficient de variance, CV
    21
  • 10 Système d'essai renforcé facultatif
    22
  • 10.1 Application du système d'essai renforcé
    22
  • 10.2 Principe du système d'essai renforcé
    22
  • 10.3 Détermination de la taille de particule corrigée
    23
  • 10.4 Présentation des résultats
    24
  • Annexe A (informative) Formulaire d'inspection de l'installation de filtration préalable à l'essai
    25
  • Annexe B (informative) Formulaire d'approbation d'essai
    28
  • Annexe C (informative) Exemple de réalisation d'un essai
    30
  • Bibliographie
    46
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