EN 60704-2-13:2000/A1:2006

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

Superseded by EN 60704-2-13:2011

Elektrische Geräte für den Hausgebrauch und ähnliche Zwecke - Prüfvorschrift für die Bestimmung der Luftschallemission - Teil 2-13: Besondere Anforderungen für Dunstabzugshauben

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

Gospodinjski in podobni električni aparati - Preskuševalni kod za ugotavljanje zvočnega hrupa v zraku - 2-13. del: Posebne zahteve za kuhinjske nape (IEC 60704-2-13:2000/A1:2005)

General Information

• Status: Withdrawn
• Publication Date: 19-Dec-2006
• Withdrawal Date: 30-Nov-2009
• ICS: 17.140.20 - Noise emitted by machines and equipment
• ICS: 97.040.20 - Cooking ranges, working tables, ovens and similar appliances
• Technical Committee: CLC/TC 59X - Consumer information related to household electrical appliances
• Drafting Committee: IEC/TC 59 - IEC_TC_59
• Parallel Committee: IEC/TC 59 - IEC_TC_59
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Start Date: 03-Mar-2014
• Completion Date: 03-Mar-2014
• Directive: 86/594/EEC - Council Directive 86/594/EEC of 1 December 1986 on airborne noise emitted by household appliances
• Ref Project: SIST EN 60704-2-13:2001/A1:2007 - Household and similar electrical appliances - Test code for the determination of airborne acoustical noise -- Part 2-13: Particular requirements for range hoods

Relations

• Replaced By: EN 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: 29-Jan-2023
• Amends: EN 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
• Effective Date: 29-Jan-2023

Standards Content (Sample)

59/422/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJET DE COMITÉ POUR VOTE (CDV)

Project number IEC 60704-2-13-A1 Ed 1.0
Numéro de projet
IEC/TC or SC: Date of circulation Closing date for voting (Voting
TC59
Date de diffusion mandatory for P-members)

CEI/CE ou SC:
Date de clôture du vote (Vote
2005-04-29
obligatoire pour les membres (P))
2005-09-30
Titre du CE/SC:    TC/SC Title: Performance of household electrical
appliances
Secretary: Peter Riller, Germany
Secrétaire:
Also of interest to the following committees Supersedes document
Intéresse également les comités suivants Remplace le document
59/363/DTR and 59/369A/RVC
Functions concerned
Fonctions concernées
Safety EMC Environment Quality assurance
Sécurité
CEM Environnement Assurance qualité
CE DOCUMENT EST TOUJOURS À L'ÉTUDE ET SUSCEPTIBLE DE THIS DOCUMENT IS STILL UNDER STUDY AND SUBJECT TO CHANGE. IT
MODIFICATION. IL NE PEUT SERVIR DE RÉFÉRENCE. SHOULD NOT BE USED FOR REFERENCE PURPOSES.
LES RÉCIPIENDAIRES DU PRÉSENT DOCUMENT SONT INVITÉS À RECIPIENTS OF THIS DOCUMENT ARE INVITED TO SUBMIT, WITH THEIR
PRÉSENTER, AVEC LEURS OBSERVATIONS, LA NOTIFICATION DES COMMENTS, NOTIFICATION OF ANY RELEVANT PATENT RIGHTS OF
DROITS DE PROPRIÉTÉ DONT ILS AURAIENT ÉVENTUELLEMENT WHICH THEY ARE AWARE AND TO PROVIDE SUPPORTING
CONNAISSANCE ET À FOURNIR UNE DOCUMENTATION EXPLICATIVE. DOCUMENTATION.

Titre :    Title : IEC 60704-2-13-A1 Ed 1.0: Household and
similar electrical appliances – Test code for the

determination of airborne acoustical noise –
Part 2-13: Particular requirements for range
hoods
Note d'introduction Introductory note

This amendment was already circulated as DTR and now it has been determined that the document
should be an amendment to 60704-2-13.

This amendment to 60704-2-13 describes an alternative method for determination of airborne acoustical
noise emitted by range hoods.
The clauses of this amendment supplement or modify the corresponding clauses in IEC Publication
60704-2-13.
This method shall neither be used for the declaration, nor for the verification.

ATTENTION ATTENTION
CDV soumis en parallèle au vote (CEI) Parallel IEC CDV/CENELEC Enquiry
et à l’enquête (CENELEC)
permitted to download this electronic file, to make a copy and to print out the content for the sole
purpose of preparing National Committee positions. You may not copy or "mirror" the file or
printed version of the document, or any part of it, for any other purpose without permission in
writing from IEC.
FORM CDV (IEC)
2002-08-09
60704-2-13/Amend 1/Ed 1.0/CDV © IEC 2
CONTENTS
Page
FOREWORD. 3
INTRODUCTION. 4

Clause
1 Scope and object. 5
2 Normative references. 6
3 Terms and definitions. 6
4 Measurement methods and acoustical environments . 6
5 Instrumentation. 7
6 Operation and location of appliance under test. 7
7 Measurement of normal sound intensity component levels . 8
8 Calculation of sound intensity and sound power levels. 9
9 Information to be recorded . 10
10 Information to be reported. 11

60704-2-13/Amend 1/Ed 1.0/CDV © IEC 3
FOREWORD
1) The IEC (International Electrotechnical Commission) 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, 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 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.

This technical specification has been prepared by IEC technical committee 59:
Performance of household electrical appliances.

The text of this technical report is based on the following documents:
FDIS Result on voting
59/XX/FDIS 59/XX/RDV
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 technical specification has been drafted in accordance with ISO/IEC Directives, part 3.

This annex is intended to be used in conjunction with IEC Publication 60704-2-13: "Test code for the determination
of airborne acoustical noise emitted by household and similar electrical appliances - Part 2: Particular requirements
for range hoods".
The clauses of this annex supplement or modify the corresponding clauses in IEC Publication 60704-2-
13.
Where a particular subclause of part 2-13 is not mentioned in this annex, that subclause applies as far as
reasonable. Where this annex states "addition", "modification" or "replacement", the relevant
requirements, test specifications or explanatory matter in 60704-2-13 shall be adapted accordingly.

The committee has decided that this publication remains valid until 2007. At this date, in accordance with
the committee’s decision, the publication will be:

• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
60704-2-13/Amend 1/Ed 1.0/CDV © IEC 4
INTRODUCTION
This Technical Specification will introduce a description of the intensimetric method for the determination of sound
power levels of range hoods. According to this method, the sound power level is obtained by measuring the
component of sound intensity normal to a measurement surface that surrounds the range hood.

60704-2-13/Amend 1/Ed 1.0/CDV © IEC 5

Intensimetric method for the determination
of sound power levels of range hoods, description of the procedure
differing to IEC 60704-2-13
1 Scope and object
This clause of part 2-13 is applicable except as follows:

1.1.1 General
Addition:
Intensimetric method for the determination of sound power levels shall not be used for the purpose of verification.

1.1.2 Types of noise
Replacement:
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 Section 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.
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 for both Discrete points method and Scanning
method are:
Standard deviation (dB)
σ (repeatability) σ (reproducibility)
r R
1.5 2.0
60704-2-13/Amend 1/Ed 1.0/CDV © IEC 6

2. Normative References
This clause of Part 2-13 is applicable except as follows:

Addition:
IEC 942:1988, Sound calibrators.

IEC 1043: 1993, Instruments for the measurement of sound intensity.

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 2-13 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 in ISO 9614-2.

4. Measurement methods and acoustical environments

This clause of Part 2-13 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 annex, one method is used, the direct method as described in 4.2 below.

4.2 Direct method
Replacement:
The measurement can be performed according to two intensimetric methods, the "discrete points method"
and the "scanning method", as described below.

60704-2-13/Amend 1/Ed 1.0/CDV © IEC 7

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 (see annexes A and B of ISO 9614-1) but shall be
2 3
at least 10 cm. The density of measurement positions on parallelepiped faces depends on extraneous
noise and on the value of F indicator (see annexes A and B of ISO 9614-1). The total sound power of
source is obtained from calculation of partial sound power of each segment of parallelepiped, by
multiplying the "local" intensity sound by its partial area, and then by adding all the partial sound powers
(absolute value).
Scanning method:
This method is very similar to the previous one, with the only difference 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 Not applicable
4.4 Acoustical environments
4.4.1 General requirements and criterion for adequacy of the test environment

Replacement:
Discrete points method:
They are given in clauses 4 and 5 of ISO 9614-1.

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 2-13 is applicable except as follows:

5.1 Instrumentation for measuring acoustical data

Addition:
Sound intensity measurement instruments and probe 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 manufacturer shall be applied.

6. Operation and location of appliances under test

This clause of Part 2-13 is applicable except as follows:

60704-2-13/Amend 1/Ed 1.0/CDV © IEC 8

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 of IEC 60704-2-13 and the range
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Household and similar electrical appliances - Test code for the determination of airborne
acoustical noise - Part 2-13: Particular requirements for range hoods
Elektrische Geräte für den Hausgebrauch und ähnliche Zwecke - Prüfvorschrift für die
Bestimmung der Luftschallemission - Teil 2-13: Besondere Anforderungen für
Dunstabzugshauben
Appareils électrodomestiques et analogues - Code d'essai pour la détermination du bruit
aérien - Partie 2-13: Règles particulières pour les hottes de cuisine
Ta slovenski standard je istoveten z: EN 60704-2-13:2000/A1:2006
ICS:
17.140.20
97.040.20
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 60704-2-13/A1
NORME EUROPÉENNE
December 2006
EUROPÄISCHE NORM
ICS 97.040.20; 17.140.20
English version
Household and similar electrical appliances -
Test code for the determination of airborne acoustical noise
Part 2-13: Particular requirements for range hoods
(IEC 60704-2-13:2000/A1:2005)
Appareils électrodomestiques  Elektrische Geräte für den Hausgebrauch
et analogues - und ähnliche Zwecke -
Code d'essai pour la détermination Prüfvorschrift für die Bestimmung
du bruit aérien der Luftschallemission
Partie 2-13: Règles particulières Teil 2-13: Besondere Anforderungen
pour les hottes de cuisine für Dunstabzugshauben
(CEI 60704-2-13:2000/A1:2005) (IEC 60704-2-13:2000/A1:2005)

This amendment A1 modifies the European Standard EN 60704-2-13:2000; it was approved by CENELEC on
2006-12-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this amendment 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 Central Secretariat or to any CENELEC member.

This amendment 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
Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, the Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2006 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60704-2-13:2000/A1:2006 E

Foreword
The text of amendment 1:2005 to the International Standard IEC 60704-2-13:2000, prepared by
IEC TC 59, Performance of household electrical appliances, was submitted to the formal vote and was
approved by CENELEC as amendment A1 to EN 60704-2-13:2000 on 2006-12-01 without any
modification.
The following dates were fixed:
– latest date by which the amendment has to be
implemented at national level by publication of
an identical national standard or by endorsement (dop) 2007-12-01
– latest date by which the national standards conflicting
with the amendment have to be withdrawn (dow) 2009-12-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of amendment 1:2005 to the International Standard IEC 60704-2-13:2000 was approved by
CENELEC as an amendment to the European Standard without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated:
IEC 60942 NOTE Harmonized as EN 60942:2003 (not modified).
__________
- 3 - EN 60704-2-13:2000/A1:2006
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

Add the following references:
Publication Year Title EN/HD Year
IEC 61043 1993 Electroacoustics - Instruments for the EN 61043 1994
measurement of sound intensity -
Measurement with pairs of pressure
sensing microphones
ISO 9614-1 1993 Acoustics - Determination of sound power EN ISO 9614-1 1995
levels of noise sources using sound
intensity
Part 1: Measurement at discrete points
ISO 9614-2 1996 Acoustics - Determination of sound power EN ISO 9614-2 1996
levels of noise sources using sound
intensity
Part 2: Measurement by scanning

INTERNATIONAL IEC
STANDARD 60704-2-13
AMENDMENT 1
2005-12
Amendment 1
Household and similar electrical appliances –
Test code for the determination
of airborne acoustical noise –
Part 2-13:
Particular requirements for range hoods
 IEC 2005 Droits de reproduction réservés  Copyright - all rights reserved
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Telephone: [phone] Telefax: [phone] E-mail: [e-mail] Web: www.iec.ch
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For price, see current catalogue

– 2 – 60704-2-13 Amend. 1  IEC:2005(E)
FOREWORD
This amendment has been prepared by IEC technical committee 59: Performance of
household electrical appliances.
The text of this amendment is based on the following documents:
FDIS Report on voting
59/422/FDIS 59/432A/RVD
Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
The committee has decided that the contents of this amendment and the base publication 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.
_____________
INTRODUCTION
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.
Page 3
CONTENTS
Add, after the listing for Annex AA, the title of the new bibliography as follows:
Bibliography
Page 11
1 Scope and object
1.1.1 General
Add, to the existing text, the following new paragraph:
Intensimetric method for the determination of sound power levels shall not be used for the
purpose of verification.
60704-2-13 Amend. 1  IEC:2005(E) – 3 –
1.1.2 Types of noise
Replace the existing text of the addition by the following new text:
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
Replace the existing text of the replacement by the following new text:
Replacement:
The size of the noise source is unrestricted. The extent of the source is defined by the choice
of the measurement surface.
Page 13
Add the following subclause:
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 for both the
discrete points method and the scanning method are as indicated in Table 101.
Table 101 – Standard deviations of sound power levels
Standard deviation (dB)
σ (repeatability) σ (reproducibility)
r R
1,5 2,0
– 4 – 60704-2-13 Amend. 1  IEC:2005(E)
2 Normative references
Add the following new references:
IEC 61043:1993, Electroacoustics – Instruments for the measurement of sound intensity –
Measurement with pairs of pressure sensing microphones
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
Add the following definition:
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.

Page 15
4 Measurement methods and acoustical environments
Add the following subclause:
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
Replace the existing text of the addition with the following new text:

60704-2-13 Amend. 1  IEC:2005(E) – 5 –
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
2 3
indicators (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
Replace the existing text of the addition with the following new text:
Not applicable.
Add the following subclauses:
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.
– 6 – 60704-2-13 Amend. 1  IEC:2005(E)
5 Instrumentation
5.1 Instrumentation for measuring acoustical data
Add, to the existing addition, the following new paragraphs:
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
Page 17
6.5 Location and mounting of appliances
6.5.1 Replace the existing text of the replacement with the following:
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.

Page 19
6.5.4 Replace the existing text of the replacement with the following:
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). C
...