SIST EN ISO 29464:2024

SLOVENSKI STANDARD
01-september-2024
Čiščenje zraka in drugih plinov - Terminologija (ISO 29464:2024)
Cleaning of air and other gases - Vocabulary (ISO 29464:2024)
Reinigung von Luft und anderen Gasen - Terminologie (ISO 29464:2024)
Épuration de l'air et autres gaz - Terminologie (ISO 29464:2024)
Ta slovenski standard je istoveten z: EN ISO 29464:2024
ICS:
01.040.13 Okolje. Varovanje zdravja. Environment. Health
Varnost (Slovarji) protection. Safety
(Vocabularies)
13.040.99 Drugi standardi v zvezi s Other standards related to air
kakovostjo zraka quality
23.120 Zračniki. Vetrniki. Klimatske Ventilators. Fans. Air-
naprave conditioners
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 29464
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2024
EUROPÄISCHE NORM
ICS 01.040.91; 91.140.30 Supersedes EN ISO 29464:2019
English Version
Cleaning of air and other gases - Vocabulary (ISO
29464:2024)
Épuration de l'air et autres gaz - Vocabulaire (ISO Reinigung von Luft und anderen Gasen - Terminologie
29464:2024) (ISO 29464:2024)
This European Standard was approved by CEN on 15 June 2024.

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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye 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
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 29464:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 29464:2024) has been prepared by Technical Committee ISO/TC 142 "Cleaning
equipment for air and other gases" in collaboration with Technical Committee CEN/TC 195 “Cleaning
equipment for air and other gases” 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 January 2025, and conflicting national standards shall
be withdrawn at the latest by January 2025.
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 ISO 29464:2019.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 29464:2024 has been approved by CEN as EN ISO 29464:2024 without any modification.

International
Standard
ISO 29464
Third edition
Cleaning of air and other gases —
2024-07
Vocabulary
Épuration de l'air et autres gaz — Vocabulaire
Reference number
ISO 29464:2024(en) © ISO 2024
ISO 29464:2024(en)
© ISO 2024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ISO 29464:2024(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 Terms related to particle and gas-phase air cleaners .1
3.2 Terms related to particulate matter filters (including general ventilation, EPA, HEPA
and ULPA filters) .6
3.3 Terms related to air intake particle filters for rotary machines . 20
3.4 Terms related to cleanable particle filter degradation .21
3.5 Terms related to gas phase air cleaners (GPAC) . 23
3.6 Terms related to UVC devices . 30
3.7 Terms related to stand-alone electrically-powered air cleaners . 33
Bibliography .35
Index .37

iii
ISO 29464:2024(en)
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.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of ISO document should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 142, Cleaning equipment for air and other gases,
in collaboration with the European Committee for Standardization (CEN) Technical Committee CEN/TC 195,
Cleaning equipment for air and other gases, in accordance with the Agreement on technical cooperation
between ISO and CEN (Vienna Agreement).
This third edition cancels and replaces the second edition (ISO 29464:2017), which has been technically
revised.
The main changes are as follows:
— addition of 3.7 covering stand-alone electrically-powered air cleaners;
— addition of new terms and definitions in 3.5 and 3.6 due to the publication of new standards.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.

iv
International Standard ISO 29464:2024(en)
Cleaning of air and other gases — Vocabulary
1 Scope
This document defines terms related to the air filtration industry.
This document is applicable to particulate matter and gas phase air filters and air cleaners used for the
general ventilation of inhabited enclosed spaces. It is also applicable to air inlet filters for static or seaborne
rotary machines, cleanable filters, UV-C germicidal devices, and stand-alone electrically-powered air
cleaners.
It is not applicable to cabin filters for road vehicles or air inlet filters for mobile internal combustion engines
for which separate arrangements exist. Dust separators for the purpose of air pollution control are also
excluded.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1 Terms related to particle and gas-phase air cleaners
3.1.1
air cleaner
device for removing contaminants (3.1.12) from air in a ventilation system, building or other enclosed space
3.1.2
robotic air cleaner
air cleaner that operates and changes its physical location autonomously without user intervention
Note 1 to entry: The robotic air cleaner can consist of a part that houses the air cleaning function and can have a
docking station and/or other accessories to assist its operation.
3.1.3
fresh-air air cleaner
air cleaner connected to the external environment, which provides pollutant-reduced outdoor air into an
indoor space
Note 1 to entry: The fresh-air air cleaner can also include other auxiliary functions, such as heat exchange.
3.1.4
air velocity
rate of air movement
Note 1 to entry: It is expressed in m/s (fpm).

ISO 29464:2024(en)
3.1.5
bypass
proportion of the challenge air stream (3.5.14) that passes around or through an air cleaner (3.1.1) without
interacting with the air cleaner
3.1.6
calibrate
to compare readings from the instrument to be calibrated with those from a reference device
3.1.7
capture
removal of contaminants from an air stream
3.1.8
classification
allocation of air cleaners into groups and classes according to relevant aspects of their air cleaning
performance
3.1.9
clean side
downstream side of an air cleaner element
3.1.10
combination product
air cleaner that includes a secondary function besides air cleaning within the same housing, such as
humidifying, dehumidifying, heating, or air conditioning
3.1.11
concentration
quantity of one substance dispersed in a defined amount of another
3.1.12
contaminant
pollutant
substance (solid, liquid or gas) that negatively affects the intended use of a gas
...