Cooking fume extractors - Methods for measuring performance

IEC 61591:2019 applies to cooking fume extractors incorporating a fan for the recirculation or extraction mode situated in a household kitchen. It can also be used for cooking fume extractors where the fan is mounted separately from the appliance, but controlled by the appliance when the fan is defined in the technical documentation (e.g. name plate data) and instructions for installation. This document deals also with down-draft systems arranged beside, behind or under the cooking appliance. This document defines the main performance characteristics of these appliances, which are of interest to the user, and specifies methods for measuring these characteristics. This document does not specify a classification or ranking for performance. This document does not deal with safety requirements that are in accordance with IEC 60335-1 and IEC 60335-2-31. This second edition cancels and replaces the first edition published in 1997, Amendment 1:2005 and Amendment 2:2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) new subclause about instruments and measurements (see 6.6); b) new procedure for measuring the fluid dynamic efficiency (FDE), which follows the CENELEC proposal in principle; c) revised procedure for determining the odour reduction for cooking fume extractors in recirculation mode (see Clause 12); d) modification to the measurement of the effectiveness of the lighting system (see Clause 11); e) clearer procedure to measure the grease absorption (see Clause 13);

Absauger für Kochdünste - Verfahren zur Messung der Gebrauchseigenschaft

Extracteurs de fumée de cuisine - Méthodes de mesure de l'aptitude à la fonction

L'IEC 61591:2019 s'applique aux extracteurs de fumée de cuisine comportant un ventilateur pour le mode recyclage ou extraction, installés dans une cuisine à usage domestique. Il peut également être utilisé pour les extracteurs de fumée de cuisine lorsque le ventilateur est monté séparément de l'appareil, mais est commandé par celui-ci lorsqu'il est mentionné dans la documentation technique (données inscrites sur la plaque signalétique, par exemple) et dans les instructions d'installation. Le présent document couvre également les extracteurs verticaux installés à côté, à l'arrière ou au-dessous de l'appareil de cuisson. Le présent document définit les caractéristiques de performance principales de ces appareils qui sont pertinentes pour l'utilisateur et spécifie les méthodes de mesure de ces caractéristiques. Le présent document ne spécifie pas un système de classement pour l'aptitude à la fonction de ces appareils. Le présent document ne traite pas des exigences de sécurité qui sont conformes aux normes IEC 60335-1 et IEC 60335-2-31. Cette deuxième édition annule et remplace la première édition parue en 1997, l'Amendement 1:2005 et l'Amendement 2:2010. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: a) ajout d'un nouveau paragraphe portant sur les instruments et les mesurages (voir 6.6); b) ajout d'une nouvelle procédure pour le mesurage du rendement dynamique des fluides (FDE, Fluid Dynamic Efficiency), suivant la proposition de principe du CENELEC; c) révision de la procédure visant à déterminer la réduction des odeurs des extracteurs de fumée de cuisine fonctionnant en mode recyclage (voir Article 12); d) modification de la procédure de mesure de l'efficacité du système d'éclairage (voir Article 11); e) clarification de la procédure de mesure de l'absorption des graisses (voir Article 13).

Odvajalniki kuhinjskih hlapov - Metode za merjenje lastnosti

General Information

Publication Date
Current Stage
6060 - Document made available - Publishing
Start Date
Completion Date


Buy Standard

EN IEC 61591:2020
English language
31 pages
sale 10% off
sale 10% off
e-Library read for
1 day

Standards Content (Sample)

SIST EN 61591:2001
SIST EN 61591:2001/A1:2006
SIST EN 61591:2001/A11:2014
SIST EN 61591:2001/A12:2015
SIST EN 61591:2001/A2:2011
Odvajalniki kuhinjskih hlapov - Metode za merjenje lastnosti
Cooking fume extractors - Methods for measuring performance
Ta slovenski standard je istoveten z: EN IEC 61591:2020
97.040.20 Štedilniki, delovni pulti, Cooking ranges, working
pečice in podobni aparati tables, ovens and similar
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.


July 2020
ICS 97.040.20 Supersedes EN 61591:1997 and all of its amendments
and corrigenda (if any)
English Version
Cooking fume extractors - Methods for measuring performance
(IEC 61591:2019)
Extracteurs de fumée de cuisine - Méthodes de mesure de Absauger für Kochdünste - Verfahren zur Messung der
l'aptitude à la fonction Gebrauchseigenschaft
(IEC 61591:2019) (IEC 61591:2019)
This European Standard was approved by CENELEC on 2019-11-18. CENELEC 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 CENELEC 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 CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61591:2020 E
European foreword
The text of document 59K/304/CDV, future edition 2 of IEC 61591, prepared by SC 59K "Performance
of household and similar electrical cooking appliances" of IEC/TC 59 "Performance of household and
similar electrical appliances" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN IEC 61591:2020.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2021-01-10
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2023-07-10
document have to be withdrawn
This document supersedes EN 61591:1997 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

Endorsement notice
The text of the International Standard IEC 61591:2019 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
IEC 60335-1 NOTE Harmonized as EN 60335-1
IEC 60335-2-31 NOTE Harmonized as EN 60335-2-31
IEC 60704-3 NOTE Harmonized as EN 60704-3

IEC 61591 ®
Edition 2.0 2019-10
Cooking fume extractors – Methods for measuring performance

Extracteurs de fumée de cuisine – Méthodes de mesure de l'aptitude à

la fonction
ICS 97.040.20 ISBN 978-2-8322-7410-1

– 2 – IEC 61591:2019 © IEC 2019
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Classification . 9
5 List of measurements . 9
6 General conditions for measurements . 9
6.1 Test room . 9
6.2 Installation and positioning . 9
6.3 Electricity supply . 10
6.4 Filters . 10
6.5 Fan control . 10
6.6 Instrumentation and measurements . 10
7 Dimensions and mass . 11
7.1 Overall dimensions . 11
7.2 Distance between cooking fume extractor and cooking appliance. 11
7.3 Mass . 12
8 Power measurement of low power modes . 12
9 Airborne acoustical noise . 12
10 Volumetric airflow . 12
10.1 Purpose . 12
10.2 Measuring setup . 12
10.3 Measurement of the volumetric airflow . 14
10.4 Calculation of the fluid dynamic efficiency (FDE ) . 16
11 Effectiveness of the lighting system . 17
11.1 Purpose . 17
11.2 Measurement . 17
11.3 Assessment . 19
12 Odour reduction . 19
12.1 Purpose . 19
12.2 Measuring setup . 19
12.3 Measurement . 21
12.4 Calculation of the odour reduction factor . 21
13 Grease absorption . 22
13.1 Purpose . 22
13.2 Measuring setup . 22
13.3 Preparation . 26
13.3.1 Determining the mass . 26
13.3.2 Warm-up period . 27
13.4 Measurement . 27
13.5 Assessment . 27
Bibliography . 29

Figure 1 – Measurement of airflow . 13

IEC 61591:2019 © IEC 2019 – 3 –
Figure 2 – Example working point of a cooking fume extractor in extraction mode . 15
Figure 3 – Example diagram of the best efficiency point (BEP) . 17
Figure 4 – Measurement points for assessing the effectiveness of the lighting system . 19
Figure 5 – Example of a test room . 20
Figure 6 – Chamber for the grease absorption of a range hood or a microwave hood
combination . 24
Figure 7 – Chamber for the grease absorption of a down-draft system . 25
Figure 8 – Cookware used for measuring the grease absorption . 26

Table 1 – Instruments . 11
Table 2 – Measurements . 11
Table 3 – Relevant measurement points for assessing the effectiveness of the lighting
system . 18

– 4 – IEC 61591:2019 © IEC 2019

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as "IEC Publication(s)"). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Com

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.