Household range hoods - Methods for measuring performance

Applies to range hoods incorporating a fan for the recirculation or forced removal of air from above a hob situated in a household kitchen. This standard defines the main performance characteristics of range hoods and specifies methods for measuring these characteristics, for the information of users.

Haushalt-Dunstabzugshauben - Verfahren zur Messung der Gebrauchseigenschaft

Hottes de cuisine à usage domestique - Méthodes de mesure de l'aptitude à la fonction

S'applique aux hottes de cuisine comportant un ventilateur pour la circulation ou l'extraction forcée d'air au-dessus d'une table de cuisson dans une cusisine à usage domestique. Cette norme définit les principales caractéristiques d'aptitude à la fonction des hottes de cuisine et les méthodes pour la vérification.

Household range hoods - Methods for measuring performance

Velja za kuhinjske nape, ki vsebujejo ventilator za rekuperiranje ali prisilno odstranjevanje zraka nad kuhinjsko napo, ki je v gospodinjski kuhinji. Ta standard določa glavne značilnosti delovanja kuhinjskih nap in opredeljuje metode za merjenje teh značilnostih za obveščanje uporabnikov.

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SIST EN 61591:2001
Household range hoods - Methods for measuring performance
Household range hoods - Methods for measuring performance
Haushalt-Dunstabzugshauben - Verfahren zur Messung der Gebrauchseigenschaft
Hottes de cuisine à usage domestique - Méthodes de mesure de l'aptitude à la fonction
Ta slovenski standard je istoveten z: EN 61591:1997
97.040.20 âWHGLOQLNLGHORYQLSXOWL Cooking ranges, working
SHþLFHLQSRGREQLDSDUDWL tables, ovens and similar
SIST EN 61591:2001 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 61591:2001

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SIST EN 61591:2001

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SIST EN 61591:2001

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SIST EN 61591:2001
Première édition
First edition
Hottes de cuisine à usage domestique –
Méthodes de mesure de l'aptitude
à la fonction
Household range hoods –
Methods for measuring performance
 IEC 1997 Droits de reproduction réservés  Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni utilisée No part of this publication may be reproduced or utilized in
sous quelque forme que ce soit et par aucun procédé, électronique any form or by any means, electronic or mechanical, including
ou mécanique, y compris la photocopie et les microfilms, sans photocopying and microfilm, without permission in writing from
l'accord écrit de l'éditeur. the publisher.
International Electrotechnical Commission 3, rue de Varembé Geneva, Switzerland
Telefax: +41 22 919 0300 e-mail: IEC web site http: //
Commission Electrotechnique Internationale
International Electrotechnical Commission
Pour prix, voir catalogue en vigueur
For price, see current catalogue

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SIST EN 61591:2001
61591 © IEC:1997 – 3 –
 1 Scope. 7
 2 Normative reference . 7
 3 Definitions . 7
 4 Classification. 9
 5 List of measurements . 9
 6 General conditions for measurements. 9
 7 Overall dimensions . 10
 8 Maximum effective capture area . 11
 9 Length of the supply cord. 11
10 Mass of the range hood . 11
11 Volumetric airflow. 11
12 Grease absorption. 13
13 Odour extraction. 15
14 Effectiveness of the hob light. 17
15 Maintenance. 17
16 Other features. 17
1 Measurement of airflow. 19
2 Pressure/air flow curve. 19
3 Arrangement for the grease absorption test. 21
4 Example of a test room . 23

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SIST EN 61591:2001
61591 © IEC:1997 – 5 –
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the 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, the IEC publishes International Standards. 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. The IEC collaborates closely with the International Organization
for Standardization (ISO) in accordance with conditions determined by agreement between the two
2) The formal decisions or agreements of the 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 National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical reports or guides and they are accepted by the National Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61591 has been prepared by IEC technical committee 59:
Performance of household electrical appliances.
The text of this standard is based on the following documents:
FDIS Report on voting
59/171/FDIS 59/181/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.

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SIST EN 61591:2001
61591 © IEC:1997 – 7 –
1 Scope
This International Standard applies to range hoods incorporating a fan for the recirculation or
forced removal of air from above a hob situated in a household kitchen.
This standard defines the main performance characteristics of range hoods and specifies
methods for measuring these characteristics, for the information of users.
This standard does not specify required values for performance characteristics.
NOTE – This standard does not deal with:
– safety requirements (IEC 60335-2-31) ;
– acoustical noise.
2 Normative reference
The following normative documents contain provisions which, through reference in this text,
constitute provisions of this International Standard. At the time of publication, the editions
indicated were valid. All normative documents are subject to revision, and parties to
agreements based on this International Standard are encouraged to investigate the possibility
of applying the most recent editions of the normative documents indicated below. Members of
IEC and ISO maintain registers of currently valid International Standards.
ISO 5167-1: 1991, Measurement of fluid flow by means of pressure differential devices – Part 1:
Orifice plates, nozzles and Venturi tubes inserted in circular cross-section conduits running full
3 Definitions
For the purpose of this International Standard, the following definitions apply.
3.1 range hood: Appliance installed over a hob and through which air is passed to remove
contaminants from the room.
3.2 recirculating-air range hood: Range hood containing filters to remove contaminants
after which the cleaned air is discharged back into the room.
3.3 air-extraction range hood: Range hood which discharges the collected air to the outside
of the building by means of ducting.
3.4 rated voltage: Voltage assigned to the range hood by the manufacturer.
3.5 grease absorption factor: The percentage of grease retained within a filter.
3.6 odour reduction factor: The capability of the range hood to reduce odours.
3.7 odour dispersion time: Time taken to reduce odours to a defined level after the odour
generating source has been switched off.
Safety of household and similar electrical appliances – Part 2: Particular requirements for
 IEC 60335-2-31:1995,
range hoods

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SIST EN 61591:2001
61591 © IEC:1997 – 9 –
4 Classification
According to type:
– recirculating-air range hood;
– air-extraction range hood.
NOTE – A range hood may be constructed to incorporate both types.
5 List of measurements
Performance is determined by assessing the following:
– overall dimensions;
– maximum effective capture area;
– length of supply cord;
– mass;
– volumetric airflow;
– ability to absorb grease;
– ability to extract odours;
– effectiveness of hob light;
– maintenance;
– features.
6 General conditions for measurements
Unless otherwise specified, the measurements are made under the following conditions.
6.1 Test room
The tests are carried out in a substantially draught-free room. The ambient temperature of the
room is maintained at 20 °C ± 5 °C.
6.2 Installation
The range hood is installed in accordance with the manufacturer’s instructions.
6.3 Supply voltage
The range hood is supplied at the rated voltage ±1%.
If a voltage range is specified by the manufacturer the range hood is to be supplied at the
nominal voltage of the country in which the appliance is intended to be used. In this case the
test voltage has to be stated in the report.
6.4 Filters
The range hood is fitted with new filters for each test of clauses 12 and 13.
6.5 Fan control
The tests are carried out with any fan control adjusted to the highest setting for normal use.
1 If a boost position is incorporated, this is not taken into account.
2 A boost position is a setting of a control for occasional use which results in a higher temporary fan speed.

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SIST EN 61591:2001
61591 © IEC:1997 – 11 –
7 Overall dimensions
The overall dimensions of the range hood are measured. The length, depth and height,
including any control knobs or other projections, are stated in millimetres. The dimensions of
the range hood in the storage position are also measured if different.
For air-extraction range hoods, the diameter of the air-outlet orifice is measured and stated.
8 Maximum effective capture area
The overall length and depth of the projection of the area bounded by the horizontal outline of
the hood is measured and stated in millimetres. Any extendible visor is fully opened and the
increased area included in the dimensions.
9 Length of the supply cord
The distance between the points of entry of the cord into the range hood and the plug is
measured and

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