IEC 60704-2-13:2000

Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 2-13: Particular requirements for range hoods

Applies to electric range hoods intended for filtering the air of the room or to exhaust the air out of the room. Does not apply to industrial appliances. Does not apply to fans located in a separate unit from the range hood itself.

Appareils électrodomestiques et analogues - Code d'essai pour la détermination du bruit aérien - Partie 2-13: Règles particulières pour les hottes de cuisine

S'applique aux hottes de cuisine électriques destinées à recycler l'air de la pièce ou à évacuer l'air hors de la pièce. Ne s'applique pas aux appareils industriels. Ne s'applique pas aux ventilateurs situés dans une unité séparée de la hotte de cuisine.

General Information

• Status: Published
• Publication Date: 16-Jul-2008
• ICS: 17.140.20 - Noise emitted by machines and equipment
• ICS: 97.040.20 - Cooking ranges, working tables, ovens and similar appliances
• Technical Committee: TC 59 - Performance of household and similar electrical appliances
• Drafting Committee: JWG 2 - TC 59/JWG 2
• Current Stage: DELPUB - Deleted Publication
• Start Date: 27-Jan-2011
• Completion Date: 26-Oct-2025

Relations

• Amended By: IEC 60704-2-13:2000/AMD1:2005 - Amendment 1 - Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 2-13: Particular requirements for range hoods
• Effective Date: 05-Sep-2023
• Amended By: IEC 60704-2-13:2000/AMD2:2008 - Amendment 2 - Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 2-13: Particular requirements for range hoods
• Effective Date: 05-Sep-2023
• Revised: IEC 60704-2-13:2011 - Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 2-13: Particular requirements for range hoods
• Effective Date: 05-Sep-2023

Overview

IEC 60704-2-13:2000 is an international standard developed by the International Electrotechnical Commission (IEC) that specifies the test code for determining airborne acoustical noise emitted by household and similar electrical range hoods. This standard focuses on particular requirements for range hoods used to filter or exhaust room air and excludes industrial appliances or fans housed separately from the range hood unit.

This test code is designed to ensure the accurate and consistent measurement of noise levels generated by range hoods under normal operating conditions, typically at the highest fan speed setting for regular use. It supports manufacturers, testing laboratories, and regulators in measuring, comparing, and communicating noise emissions effectively.

Key Topics

• Scope
  The standard applies exclusively to household and similar range hoods, including those equipped with external fans. It is not applicable to professional or industrial kitchen appliances, nor to separate fan units.

• Measurement Methods
  IEC 60704-2-13 builds on the general requirements in IEC 60704-1 and supplements them with specifics for range hoods. It includes various measurement methods such as the intensimetric method, which calculates sound power by measuring sound intensity on surfaces surrounding the source.

• Noise Types and Frequencies
  The methods consider stationary noise emissions within defined frequency ranges-up to 6.3 kHz for one-third-octave bands and up to 4 kHz for one-octave bands. The test excludes impulsive or short-duration noise bursts to ensure reliable noise characterization.

• Measurement Conditions
  Testing involves operating the range hood at defined settings and under standardized load conditions to simulate typical usage. Details include the appliance's operational state, positioning, and acoustic environment for consistent and repeatable results.

• Performance Metrics
  The standard defines procedures for calculating sound intensity and sound power levels, along with the recording and reporting of measurement data, including uncertainty estimates and deviations to support quality assurance.

Applications

• Product Development and Quality Control
  Manufacturers of household range hoods use IEC 60704-2-13 to design quieter products, verify noise performance during production, and ensure compliance with noise emission expectations.

• Certification and Compliance Testing
  Independent testing laboratories employ this standard to perform third-party noise measurements to verify compliance with international noise regulations or voluntary labeling schemes.

• Consumer Information
  Accurate noise level determination enables clear and reliable noise emission declarations on product specifications, assisting consumers in making informed purchasing decisions based on acoustical comfort.

• Research and Benchmarking
  IEC 60704-2-13 supports comparative studies between different range hood models and technologies, driving innovation focused on noise reduction in domestic kitchens and similar environments.

Related Standards

• IEC 60704-1: General requirements for airborne acoustical noise testing of household appliances, providing foundational test codes and definitions referenced by IEC 60704-2-13.

• IEC 61591: Defines methods for measuring the performance of household range hoods including airflow and energy consumption, often used in conjunction with noise testing.

• ISO 9614-1 and ISO 9614-2: International standards detailing sound power measurement via sound intensity methods, which are integrated into IEC 60704-2-13’s procedures.

• ISO 7235: Addresses measurement procedures for duct silencers, relevant for testing noise control features in range hood exhaust systems.

Summary

IEC 60704-2-13:2000 provides a comprehensive, standardized approach for testing and evaluating the airborne acoustical noise emitted by household range hoods. By defining specific test codes and measurement conditions, it ensures reliable, reproducible, and comparable noise data, critical for manufacturers aiming to optimize noise performance and for stakeholders assessing noise emissions in product compliance and consumer transparency. Utilizing this standard alongside related IEC and ISO documents strengthens the overall rigor in acoustic assessment within the household appliance industry.

Standards Content (Sample)

NORME CEI
INTERNATIONALE IEC
60704-2-13
INTERNATIONAL
Première édition
STANDARD
First edition
2000-05
Appareils électrodomestiques et analogues –
Code d'essai pour la détermination
du bruit aérien –
Partie 2-13:
Règles particulières pour les hottes de cuisine
Household and similar electrical appliances –
Test code for the determination
of airborne acoustical noise –
Part 2-13:
Particular requirements for range hoods
Numéro de référence
Reference number
CEI/IEC 60704-2-13:2000
Numéros des publications Numbering
Depuis le 1er janvier 1997, les publications de la CEI As from 1 January 1997 all IEC publications are
sont numérotées à partir de 60000. issued with a designation in the 60000 series.
Publications consolidées Consolidated publications
Les versions consolidées de certaines publications de Consolidated versions of some IEC publications
la CEI incorporant les amendements sont disponibles. including amendments are available. For example,
Par exemple, les numéros d’édition 1.0, 1.1 et 1.2 edition numbers 1.0, 1.1 and 1.2 refer, respectively, to
indiquent respectivement la publication de base, la the base publication, the base publication incor-
publication de base incorporant l’amendement 1, et la porating amendment 1 and the base publication
publication de base incorporant les amendements 1 incorporating amendments 1 and 2.
et 2.
Validité de la présente publication Validity of this publication
Le contenu technique des publications de la CEI est The technical content of IEC publications is kept
constamment revu par la CEI afin qu'il reflète l'état under constant review by the IEC, thus ensuring that
actuel de la technique. the content reflects current technology.
Des renseignements relatifs à la date de reconfir- Information relating to the date of the reconfirmation
mation de la publication sont disponibles dans le of the publication is available in the IEC catalogue.
Catalogue de la CEI.
Les renseignements relatifs à des questions à l’étude et Information on the subjects under consideration and
des travaux en cours entrepris par le comité technique work in progress undertaken by the technical
qui a établi cette publication, ainsi que la liste des committee which has prepared this publication, as well
publications établies, se trouvent dans les documents ci- as the list of publications issued, is to be found at the
dessous: following IEC sources:
• «Site web» de la CEI* • IEC web site*
• Catalogue des publications de la CEI • Catalogue of IEC publications
Publié annuellement et mis à jour Published yearly with regular updates
régulièrement (On-line catalogue)*
(Catalogue en ligne)*
• IEC Bulletin
• Bulletin de la CEI Available both at the IEC web site* and
Disponible à la fois au «site web» de la CEI* as a printed periodical
et comme périodique imprimé
Terminology, graphical and letter
Terminologie, symboles graphiques
symbols
et littéraux
For general terminology, readers are referred to
En ce qui concerne la terminologie générale, le lecteur IEC 60050: International Electrotechnical Vocabulary
se reportera à la CEI 60050: Vocabulaire Electro- (IEV).
technique International (VEI).
For graphical symbols, and letter symbols and signs
Pour les symboles graphiques, les symboles littéraux approved by the IEC for general use, readers are
et les signes d'usage général approuvés par la CEI, le referred to publications IEC 60027: Letter symbols to
lecteur consultera la CEI 60027: Symboles littéraux à be used in electrical technology, IEC 60417: Graphical
utiliser en électrotechnique, la CEI 60417: Symboles symbols for use on equipment. Index, survey and
graphiques utilisables sur le matériel. Index, relevé et compilation of the single sheets and IEC 60617:
compilation des feuilles individuelles, et la CEI 60617: Graphical symbols for diagrams.
Symboles graphiques pour schémas.
* See web site address on title page.
* Voir adresse «site web» sur la page de titre.

NORME CEI
INTERNATIONALE IEC
60704-2-13
INTERNATIONAL
Première édition
STANDARD
First edition
2000-05
Appareils électrodomestiques et analogues –
Code d'essai pour la détermination
du bruit aérien –
Partie 2-13:
Règles particulières pour les hottes de cuisine
Household and similar electrical appliances –
Test code for the determination
of airborne acoustical noise –
Part 2-13:
Particular requirements for range hoods
 IEC 2000 Droits de reproduction réservés  Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in
utilisée sous quelque forme que ce soit et par aucun procédé, any form or by any means, electronic or mechanical,
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Telefax: [phone] e-mail: [e-mail] IEC web site http://www.iec.ch
CODE PRIX
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PRICE CODE
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Pour prix, voir catalogue en vigueur
For price, see current catalogue

– 2 – 60704-2-13  CEI:2000
SOMMAIRE
Pages
AVANT-PROPOS . 4
INTRODUCTION .8
Articles
1 Domaine d'application et objet. 10
2 Références normatives. 12
3 Termes et définitions. 12
4 Méthodes de mesure et environnements acoustiques . 14
5 Appareillage.14
6 Fonctionnement et emplacement des appareils en essai. 14
7 Mesure des niveaux de pression acoustique . 20
8 Calcul des niveaux de pression acoustique et de puissance acoustique . 20
9 Informations à enregistrer . 22
10 Informations à fournir . 2 2
Annexe AA (informative) Silencieux normalisé: liste des types possibles . 28
Figure 101 – Charge normalisée . 24
Figure 102 – Exemple de banc normalisé. 24

60704-2-13  IEC:2000 – 3 –
CONTENTS
Page
FOREWORD . 5
INTRODUCTION .9
Clause
1 Scope and object . 11
2 Normative references . 13
3 Terms and definitions. 13
4 Measurement methods and acoustical environments . 15
5 Instrumentation . 15
6 Operation and location of appliances under test. 15
7 Measurement of sound pressure levels. 21
8 Calculation of sound pressure and sound power levels . 21
9 Information to be recorded . 23
10 Information to be reported . 23
Annex AA (informative) Standard muffler: list of possible types . 29
Figure 101 – Standard load. 25
Figure 102 – Example of standard stand . 25

– 4 – 60704-2-13  CEI:2000
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
___________
APPAREILS ÉLECTRODOMESTIQUES ET ANALOGUES –
CODE D'ESSAI POUR LA DÉTERMINATION DU BRUIT AÉRIEN –
Partie 2-13: Règles particulières pour les hottes de cuisine
AVANT-PROPOS
1) La CEI (Commission Electrotechnique Internationale) est une organisation mondiale de normalisation composée
de l'ensemble des comités électrotechniques nationaux (Comités nationaux de la CEI). La CEI a pour objet de
favoriser la coopération internationale pour toutes les questions de normalisation dans les domaines de
l'électricité et de l'électronique. A cet effet, la CEI, entre autres activités, publie des Normes internationales.
Leur élaboration est confiée à des comités d'études, aux travaux desquels tout Comité national intéressé par le
sujet traité peut participer. Les organisations internationales, gouvernementales et non gouvernementales, en
liaison avec la CEI, participent également aux travaux. La CEI collabore étroitement avec l'Organisation
Internationale de Normalisation (ISO), selon des conditions fixées par accord entre les deux organisations.
2) Les décisions ou accords officiels de la CEI concernant les questions techniques représentent, dans la mesure
du possible un accord international sur les sujets étudiés, étant donné que les Comités nationaux intéressés
sont représentés dans chaque comité d’études.
3) Les documents produits se présentent sous la forme de recommandations internationales. Ils sont publiés
comme normes, spécifications techniques, rapports techniques ou guides et agréés comme tels par les Comités
nationaux.
4) Dans le but d'encourager l'unification internationale, les Comités nationaux de la CEI s'engagent à appliquer de
façon transparente, dans toute la mesure possible, les Normes internationales de la CEI dans leurs normes
nationales et régionales. Toute divergence entre la norme de la CEI et la norme nationale ou régionale
correspondante doit être indiquée en termes clairs dans cette dernière.
5) La CEI n’a fixé aucune procédure concernant le marquage comme indication d’approbation et sa responsabilité
n’est pas engagée quand un matériel est déclaré conforme à l’une de ses normes.
6) L’attention est attirée sur le fait que certains des éléments de la présente Norme internationale peuvent faire
l’objet de droits de propriété intellectuelle ou de droits analogues. La CEI ne saurait être tenue pour
responsable de ne pas avoir identifié de tels droits de propriété et de ne pas avoir signalé leur existence.
La Norme internationale CEI 60704-2-13 a été établie par le comité d'études 59 de la CEI:
Aptitude à la fonction des appareils électrodomestiques.
Le texte de cette norme est issu des documents suivants:
FDIS Rapport de vote
59/230/FDIS 59/234/RVD
Le rapport de vote indiqué dans le tableau ci-dessus donne toute information sur le vote ayant
abouti à l'approbation de cette norme.
Cette publication a été rédigée selon les Directives ISO/CEI, Partie 3.
L’annexe AA est donnée uniquement à titre d’information.
Cette partie 2-13 est destinée à être utilisée conjointement avec la CEI 60704-1, deuxième
édition, 1997: Appareils électrodomestiques et analogues – Code d'essai pour la détermination
du bruit aérien – Partie 1: Règles générales.

60704-2-13  IEC:2000 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
TEST CODE FOR THE DETERMINATION OF AIRBORNE ACOUSTICAL NOISE –
Part 2-13: Particular requirements for range hoods
FOREWORD
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
organizations.
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 specifications, 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 60704-2-13 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
59/230/FDIS 59/234/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.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 3.
Annex AA is for information only.
This part 2-13 is intended to be used in conjunction with IEC 60704-1, second edition, 1997:
Household and similar electrical appliances – Test code for the determination of airborne
acoustical noise – Part 1: General requirements.

– 6 – 60704-2-13  CEI:2000
Le texte correspondant de la partie 1, amendé par la présente norme, constitue le code d'essai
pour les hottes de cuisine.
Les articles de cette partie 2-13 complètent ou modifient les articles correspondant de la
CEI 60704-1. Lorsqu'un paragraphe particulier de la partie 1 n'est pas mentionné dans cette
partie 2-13, ce paragraphe s'applique pour autant qu'il soit raisonnable. Lorsque cette partie
2-13 spécifie «addition», «modification» ou «remplacement», la prescription, la modalité
d'essai ou le commentaire correspondant de la partie 1 doit être adapté en conséquence.
Les paragraphes et les figures complémentaires à ceux de la partie 1 sont numérotés à partir
de 101.
Les annexes complémentaires sont appelées AA, BB, etc.
Le comité a décidé que le contenu de cette publication ne sera pas modifié avant 2002. A cette
date, la publication sera
• reconduite;
• supprimée;
• remplacée par une édition révisée, ou
• amendée.
60704-2-13  IEC:2000 – 7 –
The relevant text of Part 1 as amended by this standard establishes the test code for range
hoods.
Clauses in this part 2-13 supplement or modify the corresponding clauses in IEC 60704-1.
When a particular subclause of part 1 is not mentioned in this part 2-13, that subclause applies
as far as reasonable. Where this standard states "addition", "modification" or "replacement",
the relevant requirement, test specification or explanatory matter in part 1 shall be adapted
accordingly.
Subclauses or figures which are additional to those in part 1 are numbered starting from 101.
Additional annexes are lettered AA, BB, etc.
The committee has decided that the contents of this publication will remain unchanged
until 2002. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
– 8 – 60704-2-13  CEI:2000
INTRODUCTION
Les conditions de mesure spécifiées dans cette partie 2-13 permettent d'obtenir une précision
satisfaisante lors de la détermination du bruit émis et lors de la comparaison des résultats de
mesures dans différents laboratoires, tout en simulant, dans la mesure du possible, l'utilisation
pratique des hottes de cuisine à usage domestique.
Il est conseillé de considérer les données sur le bruit comme faisant partie d'une procédure
d'essais d'ensemble couvrant de nombreux aspects des propriétés et de l'aptitude à la fonction
des hottes de cuisine à usage domestique.
NOTE Comme il est indiqué dans l'introduction à la CEI 60704-1, le présent code d'essai concerne uniquement le
bruit aérien.
Une méthode utilisant l'intensité acoustique pour la mesure du bruit émis par les hottes de
cuisine à usage domestique est à l'étude.

60704-2-13  IEC:2000 – 9 –
INTRODUCTION
The measuring conditions specified in this part 2-13 provide for sufficient accuracy in
determining the noise emitted and comparing the results of measurements taken by different
laboratories, whilst simulating as far as possible the practical use of household range hoods.
It is recommended to consider the determination of noise levels as part of a comprehensive
testing procedure covering many aspects of the properties and performance of household
range hoods.
NOTE As stated in the introduction to IEC 60704-1, this test code is concerned with airborne noise only.
An intensity method for measuring noise of range hoods is under consideration.

– 10 – 60704-2-13  CEI:2000
APPAREILS ÉLECTRODOMESTIQUES ET ANALOGUES –
CODE D'ESSAI POUR LA DÉTERMINATION DU BRUIT AÉRIEN –
Partie 2-13: Règles particulières pour les hottes de cuisine
1 Domaine d'application et objet
L'article de la partie 1 s'applique avec les exceptions suivantes:
1.1 Domaine d'application
1.1.1 Généralités
Remplacement:
Les présentes règles particulières s'appliquent aux hottes de cuisine électriques (y compris
leurs accessoires et parties composantes) pour usages domestiques et analogues.
Par usages analogues, on entend les usages dans des conditions similaires à celles des
foyers, par exemple dans les restaurants, cafés, salons de thé.
Les présentes règles particulières s'appliquent aux hottes de cuisine destinées à recycler l'air
de la pièce ou à évacuer l'air hors de la pièce.
Les présentes règles particulières ne s'appliquent pas
– aux hottes de cuisine destinée à des usages industriels ou professionnels;
– aux appareils dans lesquels le ventilateur est situé dans une unité séparée de la hotte de
cuisine.
1.1.2 Types de bruit
Addition:
L'lSO 3743-1, l'lSO 3743-2 et l'ISO 3744 peuvent être indifféremment utilisées pour mesurer le
bruit émis par les hottes de cuisine.
1.1.3 Dimensions de la source
Remplacement:
La méthode spécifiée dans l'ISO 3744 s'applique aux sources de bruit de toutes dimensions.
Lorsqu'on applique l'ISO 3743-1 et l’ISO 3743-2, il convient de prendre garde à ce que la
dimension maximale de la hotte de cuisine en essai remplisse les exigences spécifiées en 1.3
de l'ISO 3743-1 et de l'ISO 3743-2.

60704-2-13  IEC:2000 – 11 –
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
TEST CODE FOR THE DETERMINATION OF AIRBORNE ACOUSTICAL NOISE –
Part 2-13: Particular requirements for range hoods
1 Scope and object
This clause of part 1 is applicable except as follows:
1.1 Scope
1.1.1 General
Replacement:
These particular requirements apply to electrical range hoods (including their accessories and
their component parts) for household and similar use.
By similar use is understood the use in similar conditions as in households, for example in
inns, coffee-houses, tea-rooms.
These particular requirements apply to range hoods intended for filtering the air of the room or
for exhausting the air out of the room.
These particular requirements do not apply to:
– range hoods for industrial or professional purposes;
– appliances in which the fan is located in a separate unit from the range hood itself.
1.1.2 Types of noise
Addition:
ISO 3743-1, ISO 3743-2 and ISO 3744 can be used for measuring noise emitted by range
hoods.
1.1.3 Size of the source
Replacement:
The method specified in ISO 3744 is applicable to noise sources of any size. When applying
ISO 3743-1 and ISO 3743-2, care should be taken that the maximum size of the range hood
under test fulfils the requirements specified in 1.3 of ISO 3743-1 and ISO 3743-2.

– 12 – 60704-2-13  CEI:2000
1.2 Objet
Addition:
La présente norme décrit comment déterminer le bruit émis par les hottes de cuisine à usage
domestique dans des conditions normales d'utilisation et pour un réglage maximal de la vitesse
du ventilateur en utilisation normale (voir notes 1 et 2). Si on le désire, la présente méthode
d'essai peut également être utilisée pour d'autres réglages de la vitesse du ventilateur.
NOTE 1 Si une position «surpuissance» est incorporée, elle ne sera pas prise en compte (voir 6.5 de la
CEI 61591).
NOTE 2 Une position «surpuissance» est un réglage pour un usage occasionnel qui provoque une vitesse du
ventilateur momentanément plus élevée (voir 6.5 de la CEI 61591).
Les exigences pour la déclaration des valeurs d'émission sonore ne sont pas du domaine
d'application de la présente norme.
NOTE 3 Pour la détermination et la vérification des valeurs déclarées d'émission sonore dans les spécifications
du produit, voir la CEI 60704-3.
2 Références normatives
L'article de la partie 1 s'applique avec les exceptions suivantes:
Addition:
CEI 61591:1997, Hottes de cuisine à usage domestique – Méthodes de mesure de l'aptitude à
la fonction
ISO 7235:1991, Acoustique – Méthodes de mesurage pour silencieux en conduit – Perte
d'insertion, bruit d'écoulement et perte de pression totale
3 Termes et définitions
L'article de la partie 1 s'applique avec les exceptions suivantes:
Addition:
3.101
hotte de cuisine (hotte)
appareil installé au-dessus d'une table de cuisson et à travers lequel l'air circule pour évacuer
les impuretés de la pièce
[CEI 61591, définition 3.1]
3.102
hotte filtrante
hotte comportant des filtres pour éliminer les impuretés, après quoi l'air propre est renvoyé
dans la pièce
[CEI 61591, définition 3.2]
3.103
hotte aspirante
hotte qui évacue l'air récupéré à l'extérieur du bâtiment au moyen de conduits
[CEI 61591, définition 3.3]
60704-2-13  IEC:2000 – 13 –
1.2 Object
Addition:
This standard describes the determination of the noise emission of household range hoods
under normal operating conditions and at the highest fan speed setting for normal use (see
notes 1 and 2). If desired, this test method may be used at any fan speed setting.
NOTE 1 If a boost position is incorporated, this is not taken into account. (See 6.5 of IEC 61591.)
NOTE 2 A boost position is a setting of a control for occasional use which results in
...

IEC 60704-2-13
Edition 1.2 2008-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Test code for the determination of
airborne acoustical noise –
Part 2-13: Particular requirements for range hoods

Appareils électrodomestiques et analogues – Code d'essai pour la détermination
du bruit aérien –
Partie 2-13: Règles particulières pour les hottes de cuisine

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 IEC or
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If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,
please contact the address below or your local IEC member National Committee for further information.

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IEC 60704-2-13
Edition 1.2 2008-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Test code for the determination of
airborne acoustical noise –
Part 2-13: Particular requirements for range hoods

Appareils électrodomestiques et analogues – Code d'essai pour la
détermination du bruit aérien –
Partie 2-13: Règles particulières pour les hottes de cuisine

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CH
CODE PRIX
ICS 17.140.20; 97.040.20 ISBN 2-8318-9736-X
– 2 – 60704-2-13 © IEC:2000+A1:2005
+A2:2008
CONTENTS
FOREWORD.3
INTRODUCTION.5
INTRODUCTION (to amendment 1).5
1 Scope and object .6
2 Normative references.8
3 Terms and definitions .8
4 Measurement methods and acoustical environments .9
5 Instrumentation.10
6 Operation and location of appliances under test .10
7 Measurement of normal sound intensity component levels.12
8 Calculation of sound intensity and sound power levels.13
9 Information to be recorded .14
10 Information to be reported.15

Annex A (normative) .18
Annex AA (informative) Standard muffler: list of possible types.19

Bibliography .19

Figure 101 – Standard load .16
Figure 102 – Example of standard stand.16
Figure 103 – Standard load for range hoods with an external fan .17

Table 101 – Standard deviations of sound power levels .7
Table 102 – Standard deviations for determination and verification .7

60704-2-13 © IEC:2000+A1:2005 – 3 –
+A2:2008
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
TEST CODE FOR THE DETERMINATION OF AIRBORNE ACOUSTICAL NOISE –

Part 2-13: Particular requirements for range hoods

FOREWORD
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 provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
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 Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60704-2-13 has been prepared by IEC technical committee 59:
Performance of household electrical appliances.
This consolidated version of IEC 60704-2-13 consists of the first edition (2000) [documents
59/230/FDIS and 59/234/RVD], its amendment 1 (2005) [documents 59/422/FDIS and
59/432A/RVD] and its amendment 2 (2008) [documents 59/428/CDV and 59/443A/RVC].
The technical content is therefore identical to the base edition and its amendments and has
been prepared for user convenience.
It bears the edition number 1.2.
A vertical line in the margin shows where the base publication has been modified by
amendments 1 and 2.
Annex AA is for information only.

– 4 – 60704-2-13 © IEC:2000+A1:2005
+A2:2008
This part 2-13 is intended to be used in conjunction with IEC 60704-1, second edition, 1997:
Household and similar electrical appliances – Test code for the determination of airborne
acoustical noise – Part 1: General requirements.
The relevant text of Part 1 as amended by this standard establishes the test code for range
hoods.
Clauses in this part 2-13 supplement or modify the corresponding clauses in IEC 60704-1.
When a particular subclause of part 1 is not mentioned in this part 2-13, that subclause applies
as far as reasonable. Where this standard states "addition", "modification" or "replacement",
the relevant requirement, test specification or explanatory matter in part 1 shall be adapted
accordingly.
Subclauses or figures which are additional to those in part 1 are numbered starting from 101.
Additional annexes are lettered AA, BB, etc.
The committee has decided that the contents of the base publication and its amendments will
remain unchanged until the maintenance result date indicated on the IEC web site under
"http://webstore.iec.ch" in the data related to the specific publication. At this date,
the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
60704-2-13 © IEC:2000+A1:2005 – 5 –
+A2:2008
INTRODUCTION
The measuring conditions specified in this part 2-13 provide for sufficient accuracy in
determining the noise emitted and comparing the results of measurements taken by different
laboratories, whilst simulating as far as possible the practical use of household range hoods.
It is recommended to consider the determination of noise levels as part of a comprehensive
testing procedure covering many aspects of the properties and performance of household
range hoods.
NOTE As stated in the introduction to IEC 60704-1, this test code is concerned with airborne noise only.

INTRODUCTION
(to amendment 1)
This amendment introduces a description of the intensimetric method for the determination of
sound power levels of range hoods in addition to the other methods described in the standard,
for the use of which the text of IEC 60704-2-13 remains unchanged. According to the method
described here, the sound power level is obtained by measuring the component of sound
intensity normal to a measurement surface that surrounds the range hood.

– 6 – 60704-2-13 © IEC:2000+A1:2005
+A2:2008
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
TEST CODE FOR THE DETERMINATION OF AIRBORNE ACOUSTICAL NOISE –

Part 2-13: Particular requirements for range hoods

1 Scope and object
This clause of part 1 is applicable except as follows:
1.1 Scope
1.1.1 General
Replacement:
These particular requirements apply to electrical range hoods (including their accessories and
their component parts) for household and similar use.
By similar use is understood the use in similar conditions as in households, for example in
inns, coffee-houses, tea-rooms.
These particular requirements apply to range hoods intended for filtering the air of the room or
for exhausting the air out of the room. It also applies to range hoods with an external fan.
These particular requirements do not apply to:
– range hoods for industrial or professional purposes.

Intensimetric method for the determination of sound power levels shall not be used for the
purpose of verification.
1.1.2 Types of noise
Addition:
The method is applicable to any source for which a physically stationary measurement surface
can be defined, and on which the noise generated by the source is stationary in time (as
defined in Clause 3), therefore it is not suitable for sources of impulsive noise consisting of
short duration noise bursts. This method is not suitable if the source under test has significant
noise over 6,3 kHz in one-third-octave band centre frequencies and over 4 kHz in one-octave
band centre frequencies.
1.1.3 Size of the source
Replacement:
The size of the noise source is unrestricted. The extent of the source is defined by the choice
of the measurement surface.
60704-2-13 © IEC:2000+A1:2005 – 7 –
+A2:2008
1.2 Object
Addition:
This standard describes the determination of the noise emission of household range hoods
under normal operating conditions and at the highest fan speed setting for normal use (see
notes 1 and 2). If desired, this test method may be used at any fan speed setting.
NOTE 1 If a boost position is incorporated, this is not taken into account. (See 6.5 of IEC 61591.)
NOTE 2 A boost position is a setting of a control for occasional use which results in a higher temporary fan speed
(see 6.5 of IEC 61591).
Requirements for the declaration of noise emission values are not within the scope of this
standard.
NOTE 3 For determining and verifying noise emission values, declared in product specifications, see IEC 60704-3.
1.3 Measurement uncertainty
Replacement:
The uncertainty in the determination of the sound power level of a noise source is related:
– to the nature of the sound field of the source;
– to the nature of the extraneous sound field;
– to the absorption of the source under test;
– to the type of intensity-field sampling and measurement procedure employed.
The normal range for A-weighted data is covered by the one-octave bands from 63 Hz to
4 kHz, and the one-third-octave bands from 50 Hz to 6,3 kHz. The estimated values of
standard deviations of sound power levels, determined according to this standard, are as
indicated in Table 101.
Table 101 – Standard deviations of sound power levels
Standard deviation
dB
σ (repeatability) σ (reproducibility)
r R
0,4 1,0
1.101 Standard deviation for declaration and verification
For the purpose of determining and verifying declared noise emission values, according to
IEC 60704-3, the values of standard deviations given in Table 102 apply.
Table 102 – Standard deviations for determination and verification
Standard deviation
dB
σ (production) σ (total) σ (reference)
p t M
1,5 – 1,7 1,8 – 2,0 2,0
– 8 – 60704-2-13 © IEC:2000+A1:2005
+A2:2008
2 Normative references
This clause of part 1 is applicable except as follows:
Addition:
IEC 61043:1993, Electroacoustics – Instruments for the measurement of sound intensity –
Measurement with pairs of pressure sensing microphones
IEC 61591:1997, Household range hoods – Methods for measuring performance
ISO 7235:1991, Acoustics – Measurement procedures for ducted silencers – Insertion loss,
flow noise and total pressure loss
ISO 9614-1:1993, Acoustics – Determination of sound power levels of noise sources using
sound intensity – Part 1: Measurement at discrete points
ISO 9614-2:1996, Acoustics – Determination of sound power levels of noise sources using
sound intensity – Part 2: Measurement by scanning
3 Terms and definitions
This clause of part 1 is applicable except as follows:
3.1
terms and definitions pertinent to determination of sound power levels
Replacement:
These may be found in ISO 9614-1 and ISO 9614-2.
Addition:
3.101
range hood
appliance installed over a hob and through which air is passed to remove contaminants from
the room
[IEC 61591, definition 3.1]
3.102
recirculating-air range hood
range hood containing filters to remove contaminants after which the cleaned air is discharged
back into the room
[IEC 61591, definition 3.2]
3.103
air-extraction range hood
range hood which discharges the collected air to another room or to the outside of the building
by means of ducting
The range hood can incorporate an internal or external fan.

60704-2-13 © IEC:2000+A1:2005 – 9 –
+A2:2008
4 Measurement methods and acoustical environments
This clause of part 1 is applicable except as follows:
4.1 General
Replacement:
The total noise emitted by machinery or equipment, and radiated in all directions to the space
surrounding the machine, can be characterized by the sound power of the machine. The sound
power of a machine is essentially independent of the environment in which the machine is
installed.
Therefore, the concept of sound power level has been chosen for expressing the noise
emission of appliances for household and similar purposes.
The preferred noise emission quantity is the A-weighted sound power level, in decibels (re.
1 pW).
According to this standard, one method is used, the direct method as described in 4.2 below.
4.2 Direct method
Addition:
The measurement can be performed according to two intensimetric methods, the "discrete
points method" and the "scanning method", as described below.
4.2.101 Discrete points method
Define, as the measurement surface, a parallelepiped-shaped surface around the range hood;
then divide it in partial areas (segment) so as to obtain a grid. The dimension of the
parallelepiped depends on the dimension of the range hood: the distance between each face of
the parallelepiped and the range hood under test depends on the value of F and F indicators
2 3
(see Annexes A and B of ISO 9614-1) but shall be at least 10 cm. The density of measurement
positions on parallelepiped faces depends on extraneous noise and on the value of the F
indicator (see Annexes A and B of ISO 9614-1). The total sound power of the source is
obtained from calculation of the partial sound power of each segment of the parallelepiped, by
multiplying the "local" intensity sound by its partial area, and then by adding all the partial
sound powers (absolute value).
4.2.102 Scanning method
This method is very similar to the previous one (4.2.101), with the only difference being that
each face of the parallelepiped is not divided in partial areas, but is continuously scanned with
the intensimetric probe, and the space and time average of intensity sound is multiplied by its
area; then the total sound power of the range hood is obtained by adding the partial sound
powers of each face of the parallelepiped.
NOTE The distance of 20 cm between each face of the parallelepiped and the range hood is usually acceptable.
4.3 Comparison method
Addition:
Not applicable.
– 10 – 60704-2-13 © IEC:2000+A1:2005
+A2:2008
4.4 Acoustical environments
4.4.1 General requirements and criterion for adequacy of the test environment
Replacement:
For the discrete points method, the general requirements and criterion for adequacy of the test
environment are given in Clauses 4 and 5 of ISO 9614-1.
For the scanning method, they are given in Clauses 4 and 5 of ISO 9614-2.
4.4.2 Criterion for background noise level
Not applicable.
5 Instrumentation
This clause of part 1 is applicable except as follows:
5.1 Instrumentation for measuring acoustical data
Addition:
The use of a windscreen is recommended and, if necessary, corrections for changes in the
microphone sensitivity shall be added to the observed sound pressure levels.
Sound intensity measurement instruments and probes that meet the requirements of
IEC 61043 shall be used. Class 1 instruments shall be used.
To check the instrumentation for proper operation prior to each series of measurements, the
field-check procedure specified by the manufacturer shall be applied.
6 Operation and location of appliances under test
This clause of part 1 is applicable except as follows:
6.1 Equipping and pre-conditioning of appliances
6.1.1 Addition:
Recirculating-air range hoods should be fitted with a clean filter(s).
Air-extraction range hoods shall be fitted with the pipe coupling ring, if any, having the largest
diameter among those provided by the manufacturer. If the range hood is designed to
accommodate additional filters, those filters shall be clean and appropriately fitted.
6.1.3 Replacement:
Prior to noise measurements, the range hood shall have been in operation for running in for at
least 4 h at the highest speed setting for normal use (see notes in 1.2).
6.1.4 Replacement:
Immediately before each series of noise measurements, the range hood equipped for its
intended use is operated for stabilizing at the highest speed setting for normal use (see notes
in 1.2) for 30 min.
60704-2-13 © IEC:2000+A1:2005 – 11 –
+A2:2008
6.2 Supply of electric energy and of water or gas
6.2.3 and 6.2.4 Not applicable.
6.4 Loading and operating of appliances during tests
6.4.2 Replacement:
The appliances shall be equipped according to 6.1.1.
The range hood shall be operated at the highest speed setting for normal use (see notes
in 1.2).
Air-extraction range hoods shall be loaded using a pipe connected to a muffler. The pipe shall
be metallic with smooth inner walls and shall have the widest diameter among those specified
by the manufacturer. If not stated, a standard pipe with the best fitting diameter shall be used.
The muffler shall have an insertion loss as specified in the table of figure 101. It shall have a
circular section with the same internal diameter as that of the pipe, a length as specified in
figure 101 and shall not have parts protruding inside that may cause additional pressure drops.
The pipe and the muffler shall also comply with all the specifications reported in figure 101 and
care shall be taken that they do not radiate noise.
Range hoods with an external fan shall be loaded with a pipe according to Figure 103. The
muffler shall be provided with the appliance. If the manufacturer did not provide a muffler, the
appliance is tested without muffler.
In particular, when connecting the pipe and muffler system to the range hood, care shall be
taken that this connection does not transfer any additional structure borne noise. For this
purpose, isolating connecting pieces can be used.
Static forces from the standard exhaust to the range hood shall also be avoided.
NOTE The fastening of the muffler should not influence the acoustical field in the test room; for example two wires
could be fixed around the muffler and on the ceiling.
Whenever it is possible to choose among two or more exit holes for the pipe connection, the
one on the upper side of the range hood, if any, shall be used.
Range hoods designed for connection with more than one pipe at the same time shall be
connected accordingly to the number of pipes required.
6.4.3 Not applicable.
6.5 Location and mounting of appliances
6.5.1 Replacement
Range hoods not intended to be placed against a wall shall be supported by resilient means
(examples are given in Figure 102 of IEC 60704-2-13). Care shall be taken in order to avoid
any kind of interference between the supports and air intake of appliance under test.
The lower edge of the appliance shall be placed at a height of 0,6 m from the horizontal
reflecting plane or from the floor of the test room.
The reference grid shall enclose the standard stand shown in Figure 102 and the range hood
under test. This parallelepiped-shaped reference surface shall be placed on the floor.
6.5.2 and 6.5.3 Not applicable.

– 12 – 60704-2-13 © IEC:2000+A1:2005
+A2:2008
6.5.4 Replacement
Range hoods intended to be placed against a wall shall be supported by resilient means
without any contact with the vertical wall (examples are given in Figure 102). Care shall be
taken in order to avoid any kind of interference between the supports and air intake of
appliance under test.
The lower edge of the appliance shall be placed at a height of 0,6 m from the horizontal
reflecting plane or from the floor of the test room. The rear edge of the range hood shall be
placed at a distance of 1 cm from the second vertical reflecting plane.
The reference grid shall enclose the standard stand shown in Figure 102 and the range hood
under test. This parallelepiped-shaped reference surface shall be placed on the floor. The
vertical reflecting plane and the horizontal reflecting plane or the floor enclosed in the
reference surface shall have an absorption coefficient α less than 0,06.
6.5.5 Replacement
Range hoods intended to be built-in shall be built in within a test enclosure of 19 mm thick
untreated particle-board (chipboard) or untreated plywood, having a density between 600 kg/m
and 750 kg/m .
The inner dimensions of the test enclosure shall comply with the manufacturer’s instructions. If
this data is not given, the enclosure should have a depth of 350 mm, a height of 600 mm and a
width of n × 100 mm, where n is an integer chosen to best fit the width of the range hood.
If necessary, the test enclosure shall be provided with ventilating openings according to the
manufacturer’s instructions. The test enclosure with the appliance is placed in accordance with
6.5.1 or 6.5.4.
6.5.101 Appliances with external fan
For range hoods with an external fan, the air inlet device shall be located and mounted as
described in 6.5.1 to 6.5.5 for range hoods. The external fan shall be located in such a way that
the noise emitted by the housing of the fan and by the air outlet does not influence the
measurement result.
7 Measurement of sound pressure levels
This clause of Part 1 is replaced as follows:
7 Measurement of normal sound intensity component levels
7.1 Initial test
7.1.1 Discrete points method
Choose a typical measurement position on the initial measurement surface for the assessment
of whether the sound field is stationary or not. With the appliance under test turned on,
calculate indicator F for all frequency bands of measurement according to A.2.1 of Annex A of
ISO 9614-1. The temporal variability of the sound field shall not exceed the values specified in
Table B.3 in Annex B of ISO 9614-1.
Extraneous noise is insignificant if A-weighted sound pressure levels measured at five
positions (distributed reasonably uniformly over the measurement surface) fall by at least 20 dB
when the source is turned off.

60704-2-13 © IEC:2000+A1:2005 – 13 –
+A2:2008
Calculate the field indicators F , F and F for all frequency bands of measurement according
2 3 4
to Annex A of ISO 9614-1, and introduce them into the formulae given for the qualification
procedure of B.1.1 of Annex B of ISO 9614-1. When this requirement is fulfilled for each
frequency band, the initial sound power determination is qualified as a final result within the
range of uncertainty given in 1.3.
7.1.2 Scanning method
Make two separate scans (the two individual scan paths shall be orthogonal) on each segment
of the measurement surface, and separately record the partial sound power levels L and
wi(1)
L according to 9.2 of ISO 9614-2 for all frequency bands of measurement. The values shall
wi(2)
fulfill criterion 3 of B.1.3 in ISO 9614-2.
Evaluate indicator F for all frequency bands of measurement according to equation (A.1) of
pl
A.2.1 of Annex A of ISO 9614-2 and introduce the values into the formula given for qualification
procedure B.1 of Annex B of ISO 9614-2. F shall be less than 20 dB.
pl
Evaluate indicator F for all frequency bands of measurement according to equation (A.2) of
+/–
A.2.2 of Annex A of ISO 9614-2 and introduce the values into the formula given for the
qualification procedure of B.1.2 of Annex B of ISO 9614-2.
7.2 Measurements
7.2.1 Discrete points method
When the preliminary tests described in 7.1 have been carried out, measure the normal
component of sound intensity in each frequency band of interest and for each segment of
parallelepiped-shaped grid. The probe shall be placed normal to the surface. The "local" value,
I , is obtained by time integration of the acoustic signal over a period of at least 20 s.
ni
7.2.2 Scanning method
Carry out scanning either manually or by means of a mechanized traversing system. The
extraneous intensity generated by this mechanism, as measured by the probe, shall be at least
20 dB lower than the one generated by the appliance on the measurement surface. Move the
intensity probe continuously along specified paths on each segment of the selected
measurement surface. The basic element of a scan is a single straight line. The duration of
each scan over an individual segment shall not be less than 20 s. Initiate time averaging at the
beginning of the scan over each segment and terminate it at the completion of the scan of the
segment.
8 Calculation of sound intensity and sound power levels
This clause of Part 1 is applicable except as follows:
8.1 Addition after last paragraph:
Noise emitted by the housing or the air outlet of an external fan shall be considered as
background noise.
– 14 – 60704-2-13 © IEC:2000+A1:2005
+A2:2008
9 Information to be recorded
This clause of part 1 is applicable except as follows:
9.2.2 Replacement:
Design characteristics: for example chimney, free-standing, built-in group, slim line.
9.7 Electric supply, water supply, etc.
9.7.3 and 9.7.4 Not applicable.
9.11 Not applicable.
9.12 Measurement data
9.12.1 Replacement:
Tabulation of the field indicators F to F calculated from each set of measurements on each
1 4
measurement surface used (discrete points method).
Tabulation of the field indicators F and F in each frequency band of the sound power
pl +/–
determination, calculated from each set of measurements on each measurement surface
(scanning method).
9.12.2 Replacement:
Tabular or graphical presentation of the calculated value of sound power level of the range
hood in all frequency bands used.
9.12.3 Replacement:
The pressure-residual intensity index of the intensity measurement system in each frequency of
measurement (discrete points method).
9.12.4 Replacement:
Quantitative description of measurement surface (parallelepiped-shaped surface) and
segments; a diagram should be presented.
9.12.5 Replacement:
Averaging time at each position (discrete points method).
Averaging time on each segment (scanning method).
9.12.6 Replacement:
Description of the measurement array; number and coordinates shall be allocated to each
position (discrete points method).
Description of the scan, including geometry and speed (scanning method).
9.13 Not applicable.
60704-2-13 © IEC:2000+A1:2005 – 15 –
+A2:2008
10 Information to be reported
This clause of part 1 is applicable except as follows:
10.3 Test conditions for the appliance
10.3.4 and 10.3.5 Not applicable.
10.3.11 Not applicable.
10.4 Acoustical data
10.4.1 Replacement:
Discrete points and/or scanning methods.
10.4.3 Not applicable.
10.4.5 to 10.4.10 Not applicable.
10.4.101
Field indicators (9.12.1).
– 16 – 60704-2-13 © IEC:2000+A1:2005
+A2:2008
Figures
Addition:
1 000 1 000
1,5 × d
90°
50 ± 1 50 ± 1
The muffler shall have the same internal diameter as
that of the pipe and shall have at least the insertion
loss reported in the table below.
1 000
The connections shall not interfere with the air flow to
avoid any additional noise or pressure drop.
Pipe with smooth inner walls
For the measurement of the diameter d see 6.1.1
∅d
IEC  545/2000
Minimum insertion loss in decibels for octave bands*
125 Hz 250 Hz 500 Hz 1 kHz 2 kHz 4 kHz 8 kHz
8 20 20 20 20 20 20
* Insertion loss measured according to ISO 7235.

Dimensions in millimetres
Figure 101 – Standard load
Resilient means
Resilient means
Material: wood
IEC  546/2000
Dimensions in millimetres
Figure 102 – Example of standard stand

60704-2-13 © IEC:2000+A1:2005 – 17 –
+A2:2008
a
I
b
c
1,5 × ∅d
a wall
b external fan
c muffler according to the manufacturing
instructions, if a muffler is provided
d the connections shall not interfere with
I
1  the air flow to avoid any additional noise
or any additional pressure  drop
e pipe
l + l = 2 000 mm
1 2
∅d
e
IEC  362/08
Figure 103 – Standard load for range hoods with an external fan

– 18 – 60704-2-13 © IEC:2000+A1:2005
+A2:2008
Annexes
The annexes of part 1 apply with the following exception:
Annex A
(normative)
This annex of part 1 is not applicable.

60704-2-13 © IEC:2000+A1:2005 – 19 –
+A2:2008
Addition:
Annex AA
(informative)
Standard muffler: list of possible types

Lindab A/S Kanaldivision
Langkær, 20
DK – 6100 Haederslev (Denmark)
Tel. [phone]
Fax [phone]
Nominal pipe diameter d
Lindab muffler model
mm
100 SLGTR 100 1090
125 SLGTR 125 1090
150 SLGTR 150 1090
200 SLGTR 200 1090
Bibliography
IEC 60942, Electroacoustics – Sound calibrators

___________
– 20 – 60704-2-13 © CEI:2000+A1:2005
+A2:2008
SOMMAIRE
AVANT-PROPOS .21
INTRODUCTION.23
INTRODUCTION (à l'amendement 1) .23
1 Domaine d'application et objet .24
2 Références normatives .26
3 Termes et définitions .26
4 Méthodes de mesure et environnements acoustiques.27
5 Appareillage .28
6 Fonctionnement et emplacement des appareils en essai .28
7 Mesure des niveaux normaux des composantes d’intensité acoustique.31
8 Calcul de l’intensité acoustique et des niveaux de puissance acoustique .32
9 Informations à enregistrer .32
10 Informations à fournir.33

Annexe A (normative).36
Annexe AA (informative) Silencieux normalisé: liste des types possibles.37

Bibliographie .37

Figure 101 – Charge normalisée.34
Figure 102 – Exemple de banc normalisé .34
Figure 103 – Charge normalisée pour hottes de cuisine avec ventilateur externe .35

Tableau 101 – Ecarts types des niveaux de puissance acoustique .25
Tableau 102 – Ecarts types pour détermination et vérification.25

60704-2-13 © CEI:2000+A1:2005 – 21 –
+A2:2008
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
___________
APPAREILS ÉLECTRODOMESTIQUES ET ANALOGUES –
CODE D'ESSAI POUR LA DÉTERMINATION DU BRUIT AÉRIEN –

Partie 2-13: Règles particulières pour les hottes de cuisine

AVANT-PROPOS
1) La Commission Electrotechnique Internationale (CEI) est une organisation mondiale de normalisation composée
de l'ensemble des comités électrotechniques nationaux (Comités nationaux de la CEI). La CEI a pour objet de
favoriser la coopération internationale pour toutes les questions de normalisation dans les domaines de
l'électricité et de l'électronique. A cet effet, la CEI – entre autres activités – publie des Normes internationales,
des Spécifications techniques, des Rapports techniques, des Spécifications accessibles au public (PAS) et des
Guides (ci-après dénommés "Publication(s) de la CEI"). Leur élaboration est confiée à des comités d'études,
aux travaux desquels tout Comité national intéressé par le sujet traité peut participer. Les organisations
internationales, gouvernementales et non gouvernementales, en liaison avec la CEI, participent également aux
travaux. La CEI collabore étroitement avec l'Organisation Internationale de Normalisation (ISO), selon des
conditions fixées par accord entre les deux organisations.
2) Les décisions ou accords officiels de la CEI concernant les questions techniques représentent, dans la mesure
du possible, un accord international sur les sujets étudiés, étant donné que les Comités nationaux de la CEI
intéressés sont représentés dans chaque comité d’études.
3) Les Publications de la CEI se présentent sous la forme de recommandations internationales et sont agréées
comme telles par les Comités nationaux de la CEI. Tous les efforts raisonnables sont entrepris afin que la CEI
s'assure de l'exactitude du contenu technique de ses publications; la CEI ne peut pas être tenue responsable de
l'éventuelle mauvaise utilisation ou interprétation qui en est faite par un quelconque utilisateur final.
4) Dans le but d'encourager l'uniformité internationale, les Comités nationaux de la CEI s'engagent, dans toute la
mesure possible, à appliquer de façon transparente les Publications de la CEI dans leurs publications
nationales et régionales. Toutes divergences entre toutes Publications de la CEI et toutes publications
nationales ou régionales correspondantes doivent être indiquées en termes clairs dans ces dernières.
5) La CEI n’a prévu aucune procédure de marquage valant indication d’approbation et n'engage pas sa
responsabilité pour les équipements déclarés conformes à une de ses Publications.
6) Tous les utilisateurs doivent s'assurer qu'ils sont en possession de la dernière édition de cette publication.
7) Aucune responsabilité ne doit être imputée à la CEI, à ses administrateurs, employés, auxiliaires ou
mandataires, y compris ses experts particuliers et les membres de ses comités d'études et des Comités
nationaux de la CEI, pour tout préjudice causé en cas de dommages corporels et matériels, ou de tout autre
dommage de quelque nature que ce soit, directe ou indirecte, ou pour supporter les coûts (y compris les frais
de justice) et les dépenses découlant de la publication ou de l'utilisation de cette Publication de la CEI ou de
toute autre Publication de la CEI, ou au crédit qui lui est accordé.
8) L'attention est attirée sur les références normatives citées dans cette publication. L'utilisation de publications
référencées est obligatoire pour une application correcte de la présente publication.
9) L’attention est attirée sur le fait que certains des éléments de la présente Publication de la CEI peuvent faire
l’objet de droits de propriété intellectuelle ou de droits analogues. La CEI ne saurait être tenue pour
responsable de ne pas avoir identifié de tels droits de propriété et de ne pas avoir signalé leur existence.
La Norme internationale CEI 60704-2-13 a été établie par le comité d'études 59 de la CEI:
Aptitude à la fonction des appareils électrodomestiques.
Cette version consolidée de la CEI 60704-2-13 comprend la première édition (2000)
[documents 59/230/FDIS et 59/234/RVD], son amendement 1 (2005) [documents 59/422/FDIS
et 59/432A/RVD] et son amendement 2 (2008) [documents 59/428/CDV et 59/443A/RVC].
Le contenu
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