EN ISO 29463-4:2018

SLOVENSKI STANDARD
01-december-2018
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High-efficiency filters and filter media for removing particles in air - Part 4: Test method
for determining leakage of filter elements-Scan method (ISO 29463-4:2011)
Schwebstofffilter und Filtermedien zur Abscheidung von Partikeln aus der Luft - Teil 4:
Prüfverfahren zur Ermittlung der Leckage des Filterelementes - Scan-Verfahren (ISO
29463-4:2011)
Filtres à haut rendement et filtres pour l'élimination des particules dans l'air - Partie 4:
Méthode d'essai pour déterminer l'étanchéité de l'élément filtrant (méthode scan) (ISO
29463-4:2011)
Ta slovenski standard je istoveten z: EN ISO 29463-4:2018
ICS:
13.040.99 Drugi standardi v zvezi s Other standards related to air
kakovostjo zraka quality
91.140.30 3UH]UDþHYDOQLLQNOLPDWVNL Ventilation and air-
VLVWHPL conditioning systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 29463-4
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2018
EUROPÄISCHE NORM
ICS 91.140.30 Supersedes EN 1822-4:2009
English Version
High-efficiency filters and filter media for removing
particles in air - Part 4: Test method for determining
leakage of filter elements-Scan method (ISO 29463-
4:2011)
Filtres à haut rendement et filtres pour l'élimination Schwebstofffilter und Filtermedien zur Abscheidung
des particules dans l'air - Partie 4: Méthode d'essai von Partikeln aus der Luft - Teil 4: Prüfverfahren zur
pour déterminer l'étanchéité de l'élément filtrant Ermittlung der Leckage des Filterelementes - Scan-
(méthode scan) (ISO 29463-4:2011) Verfahren (ISO 29463-4:2011)
This European Standard was approved by CEN on 6 May 2018.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 29463-4:2018 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
The text of ISO 29463-4:2011 has been prepared by Technical Committee ISO/TC 142 "Cleaning
equipment for air and other gases” of the International Organization for Standardization (ISO) and has
been taken over as EN ISO 29463-4:2018 by Technical Committee CEN/TC 195 “Air filters for general
air cleaning” the secretariat of which is held by UNI.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by April 2019, and conflicting national standards shall be
withdrawn at the latest by April 2019.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 1822-4:2009.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 29463-4:2011 has been approved by CEN as EN ISO 29463-4:2018 without any
modification.
INTERNATIONAL ISO
STANDARD 29463-4
First edition
2011-10-15
High-efficiency filters and filter media for
removing particles in air —
Part 4:
Test method for determining leakage of
filter elements — Scan method
Filtres à haut rendement et filtres pour l'élimination des particules dans
l'air —
Partie 4: Méthode d'essai pour déterminer l'étanchéité de l'élément
filtrant (méthode scan)
Reference number
ISO 29463-4:2011(E)
©
ISO 2011
ISO 29463-4:2011(E)
©  ISO 2011
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
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Published in Switzerland
ii © ISO 2011 – All rights reserved

ISO 29463-4:2011(E)
Contents Page
Foreword . iv
Introduction . v
1  Scope . 1
2  Normative references . 1
3  Terms and definitions . 2
4  Principle . 2
5  Test filter . 3
6  Test apparatus . 3
6.1  Set-up of the test apparatus . 3
6.2  Test duct . 6
6.3  Scanning assembly . 7
6.4  Aerosol generation and measurement techniques . 8
7  Test air . 9
8  Procedure . 10
8.1  General . 10
8.2  Preparatory checks . 10
8.3  Starting up the aerosol generator . 11
8.4  Preparing the test filter . 11
8.5  Testing . 11
9  Test report . 12
10  Maintenance and inspection of the test apparatus . 13
Annex A (normative) Oil thread leak test . 15
Annex B (normative) Aerosol photometer filter scan test method . 16
Annex C (normative) Determining the test parameters . 20
Annex D (informative) Example of an application with evaluation . 28
Annex E (informative) Leak test with solid PSL aerosol . 31
Annex F (informative) 0,3 μm to 0,5 μm particle efficiency leak test . 34
Annex G (informative) Calculation of aerosol challenge . 36
Bibliography . 38

ISO 29463-4:2011(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 29463-4 was prepared by Technical Committee ISO/TC 142, Cleaning equipment for air and other gases.
ISO 29463 consists of the following parts, under the general title High-efficiency filters and filter media for
removing particles in air:
 Part 1: Classification, performance, testing and marking
 Part 2: Aerosol production, measuring equipment, particle-counting statistics
 Part 3: Testing flat sheet filter media
 Part 4: Test method for determining leakage of filter element — Scan method
 Part 5: Test method for filter elements
iv © ISO 2011 – All rights reserved

ISO 29463-4:2011(E)
Introduction
ISO 29463 (all parts) is derived from EN 1822 (all parts) with extensive changes to meet the requests from
non-EU p-members. It contains requirements, fundamental principles of testing and the marking for high-
efficiency particulate air filters with efficiencies from 95 % to 99,999 995 % that can be used for classifying
filters in general or for specific use by agreement between users and suppliers.
ISO 29463 (all parts) establishes a procedure for the determination of the efficiency of all filters on the basis of
a particle counting method using a liquid (or alternatively a solid) test aerosol, and allows a standardized
classification of these filters in terms of their efficiency, both local and overall efficiency, which actually covers
most requirements of different applications. The difference between ISO 29463 (all parts) and other national
standards lies in the technique used for the determination of the overall efficiency. Instead of mass
relationships or total concentrations, this technique is based on particle counting at the most penetrating
particle size (MPPS), which is, for micro-glass filter mediums, usually in the range of 0,12 μm to 0,25 μm. This
method also allows testing ultra-low penetration air filters, which was not possible with the previous test
methods because of their inadequate sensitivity. For membrane filter media, separate rules apply, and they
are described in ISO 29463-5:2011, Annex B. Although no equivalent test procedu
...