IEC 60704-2-14:2013

IEC 60704-2-14 ®
Edition 2.0 2013-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Test code for the determination of
airborne acoustical noise –
Part 2-14: Particular requirements for refrigerators, frozen-food storage cabinets
and food freezers
Appareils électrodomestiques et analogues – Code d'essai pour la détermination
du bruit aérien –
Partie 2-14: Exigences particulières pour les réfrigérateurs, conservateurs et
congélateurs
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
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International Standards for all electrical, electronic and related technologies.

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IEC 60704-2-14 ®
Edition 2.0 2013-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Test code for the determination of

airborne acoustical noise –
Part 2-14: Particular requirements for refrigerators, frozen-food storage cabinets

and food freezers
Appareils électrodomestiques et analogues – Code d'essai pour la détermination

du bruit aérien –
Partie 2-14: Exigences particulières pour les réfrigérateurs, conservateurs et

congélateurs
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX N
ICS 17.140.20; 97.040.20 ISBN 978-2-83220-909-7

– 2 – 60704-2-14 © IEC:2013
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope and object . 6
1.1 Scope . 6
1.2 Object . 6
1.3 Measurement uncertainty . 6
1.101 Standard deviation for declaration and verification . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Measurement methods and acoustical environments . 7
4.2 Direct method . 8
4.3 Comparison method . 8
5 Instrumentation . 8
6 Operation and location of appliances under test . 8
6.1 Equipping and pre-conditioning of appliances . 8
6.2 Supply of electrical energy and of water or gas . 9
6.3 Climatic conditions. 9
6.4 Loading and operating of appliances during test . 9
6.5 Location and mounting of appliances . 10
7 Measurement of sound pressure levels . 10
7.1 Microphone array, measurement surface and RSS location for essentially
free-field conditions over reflecting plane(s) . 10
7.4 Measurements . 11
8 Calculation of sound pressure and sound power levels . 11
9 Information to be recorded . 11
10 Information to be reported . 11
Annexes . 13
Annex A (normative) Standard test table . 13
Bibliography . 14

Figure 101 – Measurement surface – parallelepiped – with key microphone positions
for high floor-standing appliances placed against a wall . 12

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

60704-2-14 © IEC:2013 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
TEST CODE FOR THE DETERMINATION
OF AIRBORNE ACOUSTICAL NOISE –

Part 2-14: Particular requirements for refrigerators,
frozen-food storage cabinets and food freezers

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
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4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National 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 60704-2-14 has been prepared by IEC technical committee 59:
Performance of household and similar electrical appliances.
This second edition cancels and replaces the first edition published in 2007. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) the description of an appropriate test enclosure has been removed from this part of
IEC 60704 and has been incorporated into Part 1 of IEC 60704-1;
b) the values of standard deviations of sound power levels determined according to this part
of IEC 60704 have been added.
– 4 – 60704-2-14 © IEC:2013
This bilingual version (2013-06) corresponds to the monolingual English version, published in
2013-01.
The text of this standard is based on the following documents:
FDIS Report on voting
59/590/FDIS 59/595/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.
The French version of this standard has not been voted upon.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
This Part 2-14 is intended to be used in conjunction with the third edition (2010) of
IEC 60704-1, Household and similar electrical appliances – Test code for the determination of
airborne acoustical noise – Part 1: General requirements.
NOTE When “Part 1” is mentioned in this standard, it refers to IEC 60704-1.
The relevant text of Part 1 as amended by this publication establishes the test code for
refrigerators, frozen-food storage cabinets and food freezers.
This Part 2-14 supplements or modifies the corresponding clauses in IEC 60704-1. When a
particular subclause of Part 1 is not mentioned in this Part 2-14, that subclause is applicable
as far as reasonable. Where this standard states "addition", "modification" or "replacement",
the relevant requirements, test specifications or explanatory matter in Part 1 are to be
adapted accordingly.
Subclauses, tables and figures that are numbered starting from 101 are additional to those in
Part 1. Additional annexes are lettered AA, BB, etc.
Unless notes are in a new subclause or involve notes in Part 1, they are numbered starting
from 101, including those in a replaced clause or subclause.
A list of all the parts in the IEC 60704 series, published under the general title Household and
similar electrical appliances – Test code for the determination of airborne acoustical noise,
can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability 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.
60704-2-14 © IEC:2013 – 5 –
INTRODUCTION
The measuring conditions specified in this part of 60704 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 refrigerators,
frozen-food storage cabinets and food freezers.
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
refrigerators, frozen-food storage cabinets and food freezers.
NOTE As stated in the introduction to IEC 60704-1, this test code is concerned with airborne noise only.

– 6 – 60704-2-14 © IEC:2013
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
TEST CODE FOR THE DETERMINATION
OF AIRBORNE ACOUSTICAL NOISE –

Part 2-14: Particular requirements for refrigerators,
frozen-food storage cabinets and food freezers

1 Scope and object
This clause of Part 1 is applicable except as follows:
1.1 Scope
1.1.1 General
Addition:
These particular requirements apply to refrigerators, frozen-food storage cabinets and food
freezers (fitted with their accessories) for household and similar use, supplied from the mains
or from batteries.
1.1.2 Types of noise
Replacement:
The methods specified in ISO 3743-1, ISO 3743-2 and ISO 3744 can be used for measuring
noise emitted by refrigerators, frozen-food storage cabinets and food freezers.
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 refrigerator,
frozen-food storage cabinet or food freezer under test fulfils the requirements specified in 1.3
of ISO 3743-1 and ISO 3743-2.
1.2 Object
Addition:
These described methods are specified for appliances without an operator present.
Requirements for the declaration of noise emission values are not within the scope of this
standard.
NOTE 101 For determining and verifying noise emission values declared in product specifications, see
IEC 60704-3.
1.3 Measurement uncertainty
Replacement:
The estimated values of standard deviations of sound power levels determined according to
this standard are indicated in Table 101:

60704-2-14 © IEC:2013 – 7 –
Table 101 – Standard deviations of sound power levels
Standard deviation (dB)
σ (repeatability) σ (reproducibility)
r R
0,4 0,7
Addition:
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 indicated in Table 102 apply:
Table 102 – Standard deviations for declaration and verification
Standard deviation (dB)
σ (production) σ (total) σ (reference)
P t M
0,7 to 1,5 1,0 to 1,7 2,0
2 Normative references
This clause of Part 1 is applicable.
3 Terms and definitions
This clause of Part 1 is applicable except as follows:
Addition:
3.101
running period
for a refrigerator, frozen-food storage cabinet or food freezer, period which begins when the
compressor turns on and ends when the compressor turns off
3.102
accessory
detachable part intended to be loaded by things to be cooled
3.103
temperature control cycle
time within the repetitive temperature pattern between two successive temperature warmest
points or two successive temperature coldest points
3.104
steady state
considered as being achieved when the mean values of the compartment internal
temperatures as stated in 6.4.2 are within the mentioned tolerances over a temperature
control cycle
4 Measurement methods and acoustical environments
This clause of Part 1 is applicable except as follows:

– 8 – 60704-2-14 © IEC:2013
4.2 Direct method
Addition:
NOTE 101 If pure tone components are present in the noise emitted by the source, the estimated standard
deviation of the measured sound pressure levels in the special reverberation room can increase. In such cases
additional microphone positions or source positions could be necessary as specified in ISO 3743-2.
4.3 Comparison method
Addition:
NOTE 101 If pure tone components are present in the noise emitted by the source, the estimated standard
deviation of the measured sound pressure levels in the hard-walled test room or in the special reverberation room
can increase. In such cases additional microphone positions or source positions could be necessary as specified in
ISO 3743-1 or ISO 3743-2.
5 Instrumentation
This clause of Part 1 is applicable except as follows:
5.2.1
Replacement:
The temperature is determined with instruments having an accuracy of ± 0,5 °C.
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:
Loose accessories inside the appliance (e.g. racks or ice-trays) which could unusually vibrate
when empty shall be adjusted or fixed, for example by tape. Doors or lids shall be closed.
If available, adjustable feet shall be adjusted according to the manufacturer’s instructions to
give minimum noise emission.
6.1.3
Replacement:
Prior to noise measurements, the appliance, equipped as for intended use, shall have been in
operation for the running-in for at least 16 h at an ambient temperature as specified in 6.3.
During the running-in the thermostat adjustment has to be ascertained which establishes the
test temperature as specified in 6.4.2.
6.1.4
Replacement:
Immediately before each series of noise measurements, the appliance shall be operated until
a steady state has been reached but at least for three complete running periods.

60704-2-14 © IEC:2013 – 9 –
6.2 Supply of electrical energy and of water or gas
6.2.4 Not applicable.
6.3 Climatic conditions
Modification:
ambient temperature       t   = 23 °C ± 3 °C
6.4 Loading and operating of appliances during test
6.4.1
Replacement:
The appliance shall operate without a load (i.e. empty).
Adjustable slots and openings between different compartments which may be operated by the
user shall be closed.
6.4.2
Replacement:
For determining noise emission of an appliance, it shall be operated at the following
compartment internal temperatures.
• Refrigerators
fresh-food storage compartment: 5 °C ± 2 K
frozen-food storage compartment: no limitation
chill compartment (if applicable): no limitation
• Freezers
food freezer compartment: –22 °C ± 2 K
• Refrigerator-freezers
fresh-food storage compartment: 5 °C ± 2 K
food freezer compartment without separate thermostat: no limitation
food freezer compartment with separate thermostat: – 22 °C ± 2 K
chill compartment (if applicable): no limitation
These temperatures shall be measured with temperature probes, the sensors of which are
inserted in the centre of solid cylinders made of brass or tin-covered copper having a mass of
25 g ± 5 % and of minimum external area (diameter = height = about 15,2 mm), located in the
geometric centre of the storage compartment; they shall be considered to be the mean values
over the temperature control cycle.
NOTE 101 This temperature is the air temperature and not the test temperature that is measured in test packages
according to IEC 62552. An air temperature of –22 °C approximately corresponds to a test package temperature of
–18 °C.
Combined appliances with two compressors shall be tested in the running period of the
refrigerator compressor during the continuous operating of the freezer compressor.
NOTE 102 In the case of simultaneous running of two compressors, beats are possible.

– 10 – 60704-2-14 © IEC:2013
6.4.3
Replacement:
It is recommended to record the power consumption during operation. From this time history,
the running period of the compressor can be determined.
Defrosting mode is not considered as normal operation. This should be taken into account
when running periods are defined from observing power consumption.
6.5 Location and mounting of appliances
6.5.2 Not applicable.
6.5.3
Modification:
D = 1 cm ± 0,5 cm
6.5.5
Addition:
Appliances specified by the manufacturer for building under a counter or for placing under a
worktop between cabinets (under-counter types) shall be built-in according to the
manufacturer’s instructions in an appropriate test enclosure according to Annex B of Part 1.
Regardless of the manufacturer’s instructions, the test enclosure shall have a back plane.
When measuring a device to be built-in, care should be taken that the ventilation around the
appliance is according to the manufacturer’s instructions; this can imply special precautions at
the bottom or top of the test enclosure.
7 Measurement of sound pressure levels
This clause of Part 1 is applicable except as follows:
7.1 Microphone array, measurement surface and RSS location for essentially free-
field conditions over reflecting plane(s)
7.1.3
Replacement:
For floor-standing cabinet-type appliances for placing against a wall, including built-in
appliances of larger size with a height exceeding 2 d, but less than or equal 5 d, the
measurement surface is a parallelepiped with 10 microphone positions, as specified in
Figure 101. Additional measurement positions may be required according to 7.3.2 of
ISO 3744:1994. The number of microphone positions may also be reduced according to 7.4.2
of ISO 3744:1994.
NOTE 101 The front of the appliance is directed in the direction of the x-axis.
The preferred value of the measurement distance d is 1 m.
For determining time histories, frequency spectra, etc. of the appliance, the microphone position no. 7 is
recommended for the 10 microphone array.
7.1.5 and 7.1.6 Not applicable.

60704-2-14 © IEC:2013 – 11 –
7.4 Measurements
7.4.1
Addition:
The A-weighted time averaged sound pressure level shall be measured from 1 min after the
start of a running period to the end of this running period.
To obtain the final result three consecutive measurements shall be carried out. The final result
...

IEC 60704-2-14 ®
Edition 2.1 2019-03
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Household and similar electrical appliances – Test code for the determination of
airborne acoustical noise –
Part 2-14: Particular requirements for refrigerators, frozen-food storage cabinets
and food freezers
Appareils électrodomestiques et analogues – Code d'essai pour la détermination
du bruit aérien –
Partie 2-14: Exigences particulières pour les réfrigérateurs, conservateurs et
congélateurs
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 IEC's member National Committee in the country of the requester. 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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questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
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IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org
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committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary

(IEV) online.
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Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

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IEC 60704-2-14 ®
Edition 2.1 2019-03
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Household and similar electrical appliances – Test code for the determination of

airborne acoustical noise –
Part 2-14: Particular requirements for refrigerators, frozen-food storage cabinets

and food freezers
Appareils électrodomestiques et analogues – Code d'essai pour la

détermination du bruit aérien –

Partie 2-14: Exigences particulières pour les réfrigérateurs, conservateurs et

congélateurs
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 97.040.30; 17.140.20 ISBN 978-2-8322-6753-0

IEC 60704-2-14 ®
Edition 2.1 2019-03
CONSOLIDATED VERSION
REDLINE VERSION
VERSION REDLINE
colour
inside
Household and similar electrical appliances – Test code for the determination of
airborne acoustical noise –
Part 2-14: Particular requirements for refrigerators, frozen-food storage cabinets
and food freezers
Appareils électrodomestiques et analogues – Code d'essai pour la détermination
du bruit aérien –
Partie 2-14: Exigences particulières pour les réfrigérateurs, conservateurs et
congélateurs
– 2 – IEC 60704-2-14:2013+AMD1:2019 CSV
© IEC 2019
CONTENTS
FOREWORD . 3
INTRODUCTION . 6
1 Scope and object . 7
1.1 Scope . 7
1.2 Object . 7
1.3 Measurement uncertainty . 7
1.101 Standard deviation for declaration and verification . 8
2 Normative references . 8
3 Terms and definitions . 8
4 Measurement methods and acoustical environments . 9
4.2 Direct method . 9
4.3 Comparison method . 9
5 Instrumentation . 9
6 Operation and location of appliances under test . 9
6.1 Equipping and pre-conditioning of appliances . 9
6.2 Supply of electrical energy and of water or gas . 10
6.3 Climatic conditions. 10
6.4 Loading and operating of appliances during test . 10
6.5 Location and mounting of appliances . 11
7 Measurement of sound pressure levels . 11
7.1 Microphone array, measurement surface and RSS location for essentially
free-field conditions over reflecting plane(s) . 12
7.4 Measurements . 12
8 Calculation of sound pressure and sound power levels . 12
9 Information to be recorded . 12
10 Information to be reported . 13
Annexes . 14
Annex A (normative) Standard test table . 14
Bibliography . 15
Figure 101 – Measurement surface – parallelepiped – with key microphone positions
for high floor-standing appliances placed against a wall . 13
Table 101 – Standard deviations of sound power levels . 8
Table 102 – Standard deviations for declaration and verification . 8

© IEC 2019
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
TEST CODE FOR THE DETERMINATION
OF AIRBORNE ACOUSTICAL NOISE –
Part 2-14: Particular requirements for refrigerators,
frozen-food storage cabinets and food freezers
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,
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Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
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agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
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between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
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5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
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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
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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.
This consolidated version of the official IEC Standard and its amendment has been
prepared for user convenience.
IEC 60704-2-14 edition 2.1 contains the second edition (2013-01) [documents 59/590/
FDIS and 59/595/RVD] and its amendment 1 (2019-03) [documents 59M/104/FDIS and
59M/105/RVD].
In this Redline version, a vertical line in the margin shows where the technical content
is modified by amendment 1. Additions are in green text, deletions are in strikethrough
red text. A separate Final version with all changes accepted is available in
this publication.
– 4 – IEC 60704-2-14:2013+AMD1:2019 CSV
© IEC 2019
International Standard IEC 60704-2-14 has been prepared by IEC technical committee 59:
Performance of household and similar electrical appliances.
This second edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) the description of an appropriate test enclosure has been removed from this part of
IEC 60704 and has been incorporated into Part 1 of IEC 60704-1;
b) the values of standard deviations of sound power levels determined according to this part
of IEC 60704 have been added.
The French version of this standard has not been voted upon.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
This Part 2-14 is intended to be used in conjunction with the third edition (2010) of
IEC 60704-1, Household and similar electrical appliances – Test code for the determination of
airborne acoustical noise – Part 1: General requirements.
NOTE When “Part 1” is mentioned in this standard, it refers to IEC 60704-1.
The relevant text of Part 1 as amended by this publication establishes the test code for
refrigerators, frozen-food storage cabinets and food freezers.
This Part 2-14 supplements or modifies the corresponding clauses in IEC 60704-1. When a
particular subclause of Part 1 is not mentioned in this Part 2-14, that subclause is applicable
as far as reasonable. Where this standard states "addition", "modification" or "replacement",
the relevant requirements, test specifications or explanatory matter in Part 1 are to be
adapted accordingly.
Subclauses, tables and figures that are numbered starting from 101 are additional to those in
Part 1. Additional annexes are lettered AA, BB, etc.
Unless notes are in a new subclause or involve notes in Part 1, they are numbered starting
from 101, including those in a replaced clause or subclause.
A list of all the parts in the IEC 60704 series, published under the general title Household and
similar electrical appliances – Test code for the determination of airborne acoustical noise,
can be found on the IEC website.

© IEC 2019
The committee has decided that the contents of the base publication and its amendment will
remain unchanged until the stability 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.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
– 6 – IEC 60704-2-14:2013+AMD1:2019 CSV
© IEC 2019
INTRODUCTION
The measuring conditions specified in this part of 60704 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 refrigerators,
frozen-food storage cabinets and food freezers.
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
refrigerators, frozen-food storage cabinets and food freezers.
NOTE As stated in the introduction to IEC 60704-1, this test code is concerned with airborne noise only.

© IEC 2019
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
TEST CODE FOR THE DETERMINATION
OF AIRBORNE ACOUSTICAL NOISE –

Part 2-14: Particular requirements for refrigerators,
frozen-food storage cabinets and food freezers

1 Scope and object
This clause of Part 1 is applicable except as follows:
1.1 Scope
1.1.1 General
Addition:
These particular requirements apply to refrigerators, frozen-food storage cabinets and food
freezers (fitted with their accessories) for household and similar use, supplied from the mains
or from batteries.
1.1.2 Types of noise
Replacement:
The methods specified in ISO 3743-1, ISO 3743-2 and ISO 3744 can be used for measuring
noise emitted by refrigerators, frozen-food storage cabinets and food freezers.
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 to ensure that the maximum size of the
refrigerator, frozen-food storage cabinet or food freezer under test fulfils the requirements
specified in 1.3 1.2 of ISO 3743-1:2010 and 1.3 of ISO 3743-2:1994.
1.2 Object
Addition:
These described methods are specified for appliances without an operator present.
Requirements for the declaration of noise emission values are not within the scope of this
standard.
NOTE 101 For determining and verifying noise emission values declared in product specifications, see
IEC 60704-3.
1.3 Measurement uncertainty
Replacement:
The estimated values of standard deviations of sound power levels determined according to
this standard are indicated in Table 101:

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© IEC 2019
Table 101 – Standard deviations of sound power levels
Standard deviation (dB)
σ (repeatability) σ (reproducibility)
r R
0,4 0,7
Addition:
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 indicated in Table 102 apply:
Table 102 – Standard deviations for declaration and verification
Standard deviation (dB)
σ (production) σ (total) σ (reference)
P t M
0,7 to 1,5 1,0 to 1,7 2,0
2 Normative references
This clause of Part 1 is applicable except as follows:
Addition:
ISO 3743-1:2010, Acoustics – Determination of sound power levels and sound energy levels
of noise sources using sound pressure – Engineering methods for small movable sources in
reverberant fields – Part 1: Comparison method for a hard-walled test room
ISO 3744:2010, Acoustics – Determination of sound power levels and sound energy levels of
a noise sources using sound pressure – Engineering methods for an essentially free field over
a reflecting pane
3 Terms and definitions
This clause of Part 1 is applicable except as follows:
Addition:
3.101
running period
for a refrigerator, frozen-food storage cabinet or and food freezer, period which begins when
the compressor turns on and ends when the compressor turns off
Note 1 to entry: If, however, the compressor runs for longer than 4 h, an aperiodic behaviour with no specific
running period can be identified.
3.102
accessory
detachable part intended to be loaded by things to be cooled

© IEC 2019
3.103
temperature control cycle
time within the repetitive temperature pattern between two successive temperature warmest
points or two successive temperature coldest points
3.104
steady state
considered as being achieved when the mean values of the compartment internal
temperatures as stated in 6.4.2 are within the mentioned tolerances over a temperature
control cycle
4 Measurement methods and acoustical environments
This clause of Part 1 is applicable except as follows:
4.2 Direct method
Addition:
NOTE 101 If pure tone components are present in the noise emitted by the source, the estimated standard
deviation of the measured sound pressure levels in the special reverberation room can increase. In such cases
additional microphone positions or source positions could be necessary as specified in ISO 3743-2.
4.3 Comparison method
Addition:
NOTE 101 If pure tone components are present in the noise emitted by the source, the estimated standard
deviation of the measured sound pressure levels in the hard-walled test room or in the special reverberation room
can increase. In such cases additional microphone positions or source positions could be necessary as specified in
ISO 3743-1 or ISO 3743-2.
5 Instrumentation
This clause of Part 1 is applicable except as follows:
5.2.1
Replacement:
The temperature is determined with instruments having an accuracy of ± 0,5 °C.
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:
Loose accessories inside the appliance (e.g. racks or ice-trays) which could unusually vibrate
when empty shall be adjusted or fixed, for example by tape. Doors or lids shall be closed.
If available, adjustable feet shall be adjusted according to the manufacturer’s instructions to
give minimum noise emission.
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© IEC 2019
6.1.3
Replacement:
Prior to noise measurements, the appliance, equipped as for intended use, shall have been in
operation for the running-in for at least 16 h at an ambient temperature as specified in 6.3.
During the running-in the thermostat adjustment has to be ascertained which establishes the
test temperature as specified in 6.4.2.
6.1.4
Replacement:
Immediately before each series of noise measurements, the appliance shall be operated until
a steady state has been reached but at least for three complete running periods.
6.2 Supply of electrical energy and of water or gas
6.2.4 Not applicable.
6.3 Climatic conditions
Modification:
ambient temperature       t   = 23 °C ± 3 °C
6.4 Loading and operating of appliances during test
6.4.1
Replacement:
The appliance shall operate without a load (i.e. empty).
Adjustable slots and openings between different compartments which may be operated by the
user shall be closed.
6.4.2
Replacement:
For determining noise emission of an appliance, it shall be operated at the following
compartment internal temperatures.
• Refrigerators
fresh-food storage compartment: 5 °C ± 2 K
frozen-food storage compartment: no limitation
chill compartment (if applicable): no limitation
• Freezers
food freezer compartment: –22 °C ± 2 K
• Refrigerator-freezers
fresh-food storage compartment: 5 °C ± 2 K
food freezer compartment without separate thermostat: no limitation
food freezer compartment with separate thermostat: – 22 °C ± 2 K

© IEC 2019
chill compartment (if applicable): no limitation
These temperatures shall be measured with temperature probes, the sensors of which are
inserted in the centre of solid cylinders made of brass or tin-covered copper having a mass of
25 g ± 5 % and of minimum external area (diameter = height = about 15,2 mm), located in the
geometric centre of the storage compartment; they shall be considered to be the mean values
over the temperature control cycle.
NOTE 101 This temperature is the air temperature and not the test temperature that is measured in test packages
according to in accordance with IEC 62552-2. An The air temperature of −22 °C approximately corresponds to a
test package temperature of −18 °C.
Combined appliances with two compressors shall be tested in the running period of the
refrigerator compressor during the continuous operating of the freezer compressor.
NOTE 102 In the case of simultaneous running of two compressors, beats are possible.
6.4.3
Replacement:
It is recommended to record the power consumption during operation. From this time history,
the running period of the compressor can be determined.
Defrosting mode is not considered as normal operation. This should be taken into account
when running periods are defined from observing power consumption.
6.5 Location and mounting of appliances
6.5.2 Not applicable.
6.5.3
Modification:
D = 1 cm ± 0,5 cm
6.5.5
Addition:
Appliances specified by the manufacturer for building under a counter or for placing under a
worktop between cabinets (under-counter types) shall be built-in according to the
manufacturer’s instructions in an appropriate test enclosure according to Annex B of Part 1.
Regardless of the manufacturer’s instructions, the test enclosure shall have a back plane.
When measuring a device to be built-in, care should be taken that the ventilation around the
appliance is according to the manufacturer’s instructions; this can imply special precautions at
the bottom or top of the test enclosure.
7 Measurement of sound pressure levels
This clause of Part 1 is applicable except as follows:

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© IEC 2019
7.1 Microphone array, measurement surface and RSS location for essentially free-
field conditions over reflecting plane(s)
7.1.3
Replacement:
For floor-standing cabinet-type appliances for placing against a wall, including built-in
appliances of larger size with a height exceeding 2 d, but less than or equal 5 d, the
measurement surface is a parallelepiped with 10 microphone positions, as specified in
Figure 101. Additional measurement positions may be required according to 7.3.2 in
accordance with Clause C.1 of ISO 3744:1994 2010. The number of microphone positions
may also be reduced according to 7.4.2 in accordance with Clause C.1 of ISO 3744:1994
2010.
NOTE 101 The front of the appliance is directed in the direction of the x-axis.
The preferred value of the measurement distance d is 1 m.
For determining time histories, frequency spectra, etc. of the appliance, the microphone
position no. 7 is recommended for the 10-microphone array.
7.1.5 and 7.1.6 Not applicable.
7.4 Measurements
7.4.1
Addition:
The A-weighted time-averaged sound pressure level shall be measured from 1 min after the
start of a the running period to the end of this running period. If no specific running period can
be detected, the A-weighted, time-averaged sound pressure level shall be measured, starting
from an arbitrary point in time within a running period. In this case, the duration of one
measurement interval is 30 min.
To obtain the final result, three consecutive measurements shall be carried out on three
consecutive running periods. In case of no specific running period can be detected, three
consecutive measurements, which are regularly spaced by 15 min intervals, shall be
performed within the same running period. If, in the case of aperiodic behaviour, the running
period terminates (i.e. all compressors stop) prior to having finished all measurements
needed, the complete measurement is void and shall be repeated within one running period.
The final result will be the logarithmic mean of these three measurements. If, however the
difference between any two of the measurements exceeds 2 dBA, three additional
measurements shall be carried out, and the final result will be the logarithmic mean of the six
measurements.
8 Calculation of sound pressure and sound power levels
This clause of Part 1 is applicable.
9 Information to be recorded
This clause of Part 1 is applicable except as follows:
9.7.3 and 9.7.4 Not applicable.

© IEC 2019
9.12.5 Not applicable.
10 Information to be reported
This clause of Part 1 is applicable except as follows:
10.3.4 and 10.3.5 Not applicable.
10.3.9 Not applicable.
Addition:
Co-ordinates of microphone
Measurement surface
positions: z
no. x y z 10
y
Reference box
1 a -b 0,25c
2 2a 0 0,25c
3 a b 0,25c
4 2a -b 0,50c
5 2a b 0,50c
6 a -b 0,75c
7 2a 0 0,75c
8 a b 0,75c
9 2a -b c
2b
I
10 2a b c
I
d
d
x
2a
IEC  275/13
Measurement surface area:
S = 2(2ac + 2ab + bc)
Figure 101 – Measurement surface – parallelepiped – with key microphone positions
for high floor-standing appliances placed against a wall
I
1/4 c
1/2 c
3/4 c
c = I + d
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© IEC 2019
Annexes
The annexes of Part 1 apply with the following exception:

Annex A
(normative)
Standard test table
This annex of Part 1 is not applicable.

© IEC 2019
Bibliography
Addition:
IEC 62552, Household refrigerating appliances – Characteristics and test methods
IEC 62552-1, Household refrigerating appliances – Characteristics and test methods – Part 1:
General requirements
IEC 62552-2, Household refrigerating appliances – Characteristics and test methods – Part 2:
Performance requirements
IEC 62552-3, Household refrigerating appliances – Characteristics and test methods – Part 3:
Energy consumption and volume
_____________
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© IEC 2019
SOMMAIRE
AVANT-PROPOS . 17
INTRODUCTION . 20
1 Domaine d'application et objet . 21
1.1 Domaine d’application . 21
1.2 Objet . 21
1.3 Incertitude de mesure . 21
1.101 Écart-type pour la déclaration et la vérification . 22
2 Références normatives . 22
3 Termes et définitions . 22
4 Méthodes de mesure et environnements acoustiques . 23
4.2 Méthode directe . 23
4.3 Méthode de comparaison . 23
5 Équipement de mesure . 23
6 Fonctionnement et emplacement des appareils en essai . 23
6.1 Équipement et conditionnement des appareils . 23
6.2 Alimentation en énergie électrique et en eau ou en gaz . 24
6.3 Conditions climatiques . 24
6.4 Charge et fonctionnement des appareils pendant l'essai . 24
6.5 Emplacement et montage des appareils . 25
7 Mesure des niveaux de pression acoustique . 26
7.1 Réseau de microphones, surface de mesure et emplacements de RSS pour
des conditions essentiellement en champ libre au-dessus d'un ou de
plusieurs plans réfléchissants . 26
7.4 Mesures . 26
8 Calcul des niveaux de pression acoustique et de puissance . 27
9 Informations à enregistrer . 27
10 Informations à consigner . 27
Annexes . 29
Annexe A (normative) Tableau d'essais normalisés . 29
Bibliographie . 30
Figure 101 – Surface de mesure – parallélépipède – avec positions clés des
microphones pour appareils posés sur un sol surélevé placés contre un mur . 28
Tableau 101 – Écarts-types des niveaux de puissance acoustique. 22
Tableau 102 – Écarts-types pour la déclaration et la vérification . 22

© IEC 2019
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
____________
APPAREILS ÉLECTRODOMESTIQUES ET ANALOGUES –
CODE D'ESSAI POUR LA DÉTERMINATION DU BRUIT AÉRIEN –
Partie 2-14: Exigences particulières pour les réfrigérateurs,
conservateurs et congélateurs
AVANT-PROPOS
1) La Commission Electrotechnique Internationale (IEC) est une organisation mondiale de normalisation
composée de l'ensemble des comités électrotechniques nationaux (Comités nationaux de l’IEC). L’IEC 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, l’IEC – 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 l’IEC"). 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 l’IEC, participent
également aux travaux. L’IEC 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 l’IEC concernant les questions techniques représentent, dans la mesure
du possible, un accord international sur les sujets étudiés, étant donné que les Comités nationaux de l’IEC
intéressés sont représentés dans chaque comité d’études.
3) Les Publications de l’IEC se présentent sous la forme de recommandations internationales et sont agréées
comme telles par les Comités nationaux de l’IEC. Tous les efforts raisonnables sont entrepris afin que l’IEC
s'assure de l'exactitude du contenu technique de ses publications; l’IEC 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 l’IEC s'engagent, dans toute la
mesure possible, à appliquer de façon transparente les Publications de l’IEC dans leurs publications nationales
et régionales. Toutes divergences entre toutes Publications de l’IEC et toutes publications nationales ou
régionales correspondantes doivent être indiquées en termes clairs dans ces dernières.
5) L’IEC elle-même ne fournit aucune attestation de conformité. Des organismes de certification indépendants
fournissent des services d'évaluation de conformité et, dans certains secteurs, accèdent aux marques de
conformité de l’IEC. L’IEC n'est responsable d'aucun des services effectués par les organismes de certification
indépendants.
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 l’IEC, 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 l’IEC, 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 l’IEC ou de
toute autre Publication de l’IEC, 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 l’IEC peuvent faire
l’objet de droits de brevet. L’IEC ne saurait être tenue pour responsable de ne pas avoir identifié de tels droits
de brevets et de ne pas avoir signalé leur existence.
Cette version consolidée de la Norme IEC officielle et de son amendement a été
préparée pour la commodité de l'utilisateur.
L'IEC 60704-2-14 édition 2.1 contient la deuxième édition (2013-01) [documents 59/590/
FDIS et 59/595/RVD] et son amendement 1 (2019-03) [documents 59M/104/FDIS et
59M/105/RVD].
Dans cette version Redline, une ligne verticale dans la marge indique où le contenu
technique est modifié par l'amendement 1. Les ajouts sont en vert, les suppressions
sont en rouge, barrées. Une version Finale avec toutes les modifications acceptées est
disponible dans cette publication.

– 18 – IEC 60704-2-14:2013+AMD1:2019 CSV
© IEC 2019
La Norme internationale IEC 60704-2-14 a été établie par le comité d'études 59 de l'IEC:
Aptitude à la fonction des appareils électrodomestiques.
Cette deuxième édition constitue une révision technique.
Cette édition inclut les modifications techniques significatives suivantes par rapport à l'édition
précédente:
a) la description d'une enceinte d'essai appropriée a été supprimée de la présente partie de
l'IEC 60704 et a été incorporée dans la Partie 1 de l'IEC 60704-1;
b) les valeurs des écarts-types des niveaux de puissance acoustique déterminés selon la
présente partie de l'IEC 60704 ont été ajoutées.
La version française de cette norme n’a pas été soumise au vote.
Cette publication a été rédigée selon les Directives ISO/IEC, Partie 2.
Cette Partie 2-14 doit être utilisée conjointement avec la troisième édition (2010) de
l'IEC 60704-1, Appareils électrodomestiques et analogues – Code d’essai pour la
détermination du bruit aérien – Partie 1: Exigences générales.
NOTE L’expression “Partie 1” utilisée dans la présente norme fait référence à l'IEC 60704-1.
Le texte correspondant de la Partie 1, modifié par la présente publication, constitue le code
d’essai pour les réfrigérateurs, conservateurs et congélateurs.
La présente Partie 2-14 complète ou modifie les articles correspondants de l'IEC 60704-1.
Lorsqu’un paragraphe particulier de la Partie 1 n’est pas mentionné dans cette Partie 2-14, ce
paragraphe s’applique pour autant qu’il soit raisonnable. Lorsque cette Partie 2-14 spécifie
«addition», «modification» ou «remplacement», l’exigence, la modalité d’essai ou le
commentaire correspondant de la Partie 1 doit être adapté en conséquence.
Les paragraphes, tableaux et figures qui sont numérotés à partir de 101 s'ajoutent à ceux de
la Partie 1. Les annexes complémentaires sont appelées AA, BB, etc.
Les notes, à l’exception de celles qui sont dans un nouveau paragraphe ou de celles qui
concernent des notes de la Partie 1, sont numérotées à partir de 101, y compris celles des
articles ou paragraphes qui sont modifiés ou remplacés.
Une liste de toutes les parties de la série IEC 60704, publiées sous le titre général Appareils
électrodomestiques et analogues – Code d’essai pour la détermination du bruit aérien, peut
être consultée sur le site web de l'IEC.

© IEC 2019
Le comité a décidé que le contenu de la publication de base et de son amendement ne sera
pas modifié avant la date de stabilité indiquée sur le site web de l’IEC sous
"http://webstore.iec.ch" dans les données relatives à la publication recherchée. A cette date,
la publication sera
• reconduite,
• supprimée,
• remplacée par une édition révisée, ou
• amendée.
IMPORTANT – Le logo "colour inside" qui se trouve sur la page de couverture de cette
publication indique qu'elle contient des couleurs qui sont considérées comme utiles à
une bonne compréhension de son contenu. Les utilisateurs devraient, par conséquent,
imprimer cette publication en utilisant une imprimante couleur.

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© IEC 2019
INTRODUCTION
Les conditions de mesures sp
...

IEC 60704-2-14 ®
Edition 2.2 2024-02
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Household and similar electrical appliances – Test code for the determination of
airborne acoustical noise –
Part 2-14: Particular requirements for refrigerators, frozen-food storage cabinets
and food freezers
Appareils électrodomestiques et analogues – Code d'essai pour la détermination
du bruit aérien –
Partie 2-14: Exigences particulières pour les réfrigérateurs, conservateurs et
congélateurs
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IEC 60704-2-14 ®
Edition 2.2 2024-02
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Household and similar electrical appliances – Test code for the determination of
airborne acoustical noise –
Part 2-14: Particular requirements for refrigerators, frozen-food storage cabinets
and food freezers
Appareils électrodomestiques et analogues – Code d'essai pour la détermination
du bruit aérien –
Partie 2-14: Exigences particulières pour les réfrigérateurs, conservateurs et
congélateurs
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.140.20, 97.040.20 ISBN 978-2-8322-8374-5

IEC 60704-2-14 ®
Edition 2.2 2024-02
CONSOLIDATED VERSION
REDLINE VERSION
VERSION REDLINE
colour
inside
Household and similar electrical appliances – Test code for the determination of
airborne acoustical noise –
Part 2-14: Particular requirements for refrigerators, frozen-food storage cabinets
and food freezers
Appareils électrodomestiques et analogues – Code d'essai pour la détermination
du bruit aérien –
Partie 2-14: Exigences particulières pour les réfrigérateurs, conservateurs et
congélateurs
– 2 – IEC 60704-2-14:2013+AMD1:2019
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CONTENTS
FOREWORD . 3
INTRODUCTION . 6
1 Scope and object . 7
1.1 Scope . 7
1.2 Object . 7
1.3 Measurement uncertainty . 8
1.101 Standard deviation for declaration and verification . 8
2 Normative references . 8
3 Terms and definitions . 8
4 Measurement methods and acoustical environments . 9
4.2 Direct method . 9
4.3 Comparison method . 9
5 Instrumentation . 9
6 Operation and location of appliances under test . 10
6.1 Equipping and pre-conditioning of appliances . 10
6.2 Supply of electrical energy and of water or gas . 10
6.3 Climatic conditions . 10
6.4 Loading and operating of appliances during test . 10
6.5 Location and mounting of appliances . 12
7 Measurement of sound pressure levels . 12
7.1 Microphone array, measurement surface and RSS location for essentially
free-field conditions over reflecting plane(s) . 12
7.4 Measurements . 13
8 Calculation of sound pressure and sound power levels . 13
9 Information to be recorded . 13
10 Information to be reported . 13
Annexes . 15
Annex A (normative) Standard test table . 15
Bibliography . 16

Figure 101 – Measurement surface – parallelepiped – with key microphone positions
for high floor-standing appliances placed against a wall . 14

Table 101 – Standard deviations of sound power levels . 8
Table 102 – Standard deviations for declaration and verification . 8

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INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
TEST CODE FOR THE DETERMINATION
OF AIRBORNE ACOUSTICAL NOISE –
Part 2-14: Particular requirements for refrigerators,
frozen-food storage cabinets and food freezers
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,
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2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
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6) All users should ensure that they have the latest edition of this publication.
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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.
This consolidated version of the official IEC Standard and its amendment has been
prepared for user convenience.
IEC 60704-2-14 edition 2.2 contains the second edition (2013-01) [documents
59/590/FDIS and 59/595/RVD], its amendment 1 (2019-03) [documents 59M/104/FDIS and
59M/105/RVD] and its amendment 2 (2024-02) [documents 59M/167/FDIS and
59M/168/RVD].
In this Redline version, a vertical line in the margin shows where the technical content is
modified by amendments 1 and 2. Additions are in green text, deletions are in
strikethrough red text. A separate Final version with all changes accepted is available in
this publication.
– 4 – IEC 60704-2-14:2013+AMD1:2019
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International Standard IEC 60704-2-14 has been prepared by IEC technical committee 59:
Performance of household and similar electrical appliances.
This second edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) the description of an appropriate test enclosure has been removed from this part of
IEC 60704 and has been incorporated into Part 1 of IEC 60704-1;
b) the values of standard deviations of sound power levels determined according to this part
of IEC 60704 have been added.
The French version of this standard has not been voted upon.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
This Part 2-14 is intended to be used in conjunction with the third edition (2010) of
IEC 60704-1, Household and similar electrical appliances – Test code for the determination of
airborne acoustical noise – Part 1: General requirements.
NOTE When “Part 1” is mentioned in this standard, it refers to IEC 60704-1.
The relevant text of Part 1 as amended by this publication establishes the test code for
refrigerators, frozen-food storage cabinets and food freezers.
This Part 2-14 supplements or modifies the corresponding clauses in IEC 60704-1. When a
particular subclause of Part 1 is not mentioned in this Part 2-14, that subclause is applicable
as far as reasonable. Where this standard states "addition", "modification" or "replacement",
the relevant requirements, test specifications or explanatory matter in Part 1 are to be
adapted accordingly.
Subclauses, tables and figures that are numbered starting from 101 are additional to those in
Part 1. Additional annexes are lettered AA, BB, etc.
Unless notes are in a new subclause or involve notes in Part 1, they are numbered starting
from 101, including those in a replaced clause or subclause.
A list of all the parts in the IEC 60704 series, published under the general title Household and
similar electrical appliances – Test code for the determination of airborne acoustical noise,
can be found on the IEC website.

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The committee has decided that the contents of this document and its amendments will
remain unchanged until the stability date indicated on the IEC website under webstore.iec.ch
in the data related to the specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
– 6 – IEC 60704-2-14:2013+AMD1:2019
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INTRODUCTION
The measuring conditions specified in this part of 60704 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 refrigerators,
frozen-food storage cabinets and food freezers.
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
refrigerators, frozen-food storage cabinets and food freezers.
NOTE As stated in the introduction to IEC 60704-1, this test code is concerned with airborne noise only.

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HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
TEST CODE FOR THE DETERMINATION
OF AIRBORNE ACOUSTICAL NOISE –

Part 2-14: Particular requirements for refrigerators,
frozen-food storage cabinets and food freezers

1 Scope and object
This clause of Part 1 is applicable except as follows:
1.1 Scope
1.1.1 General
Addition:
These particular requirements apply to refrigerators, frozen-food storage cabinets and food
freezers refrigerating appliances (fitted with their accessories) for household and similar use,
supplied from the mains or from batteries.
NOTE This document does not apply to air conditioners.
1.1.2 Types of noise
Replacement:
The methods specified in ISO 3743-1, ISO 3743-2 and ISO 3744 can be used for measuring
noise emitted by refrigerators, frozen-food storage cabinets and food freezers refrigerating
appliances.
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 3743-2:1994, care should shall be taken to ensure that the maximum
size of the refrigerator, frozen-food storage cabinet or food freezer refrigerating appliance
under test fulfils the requirements specified in 1.3 1.2 of ISO 3743-1:2010 and 1.3 of
ISO 3743-2:1994.
1.2 Object
Addition:
These described methods are specified for appliances without an operator present.
Requirements for the declaration of noise emission values are not within the scope of this
standard.
NOTE 101 For determining and verifying noise emission values declared in product specifications, see
IEC 60704-3.
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1.3 Measurement uncertainty
Replacement:
The estimated values of standard deviations of sound power levels determined according to
this standard are indicated in Table 101:
Table 101 – Standard deviations of sound power levels
Standard deviation (dB)
σ (repeatability) σ (reproducibility)
r R
0,4 0,7
Addition:
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 indicated in Table 102 apply:
Table 102 – Standard deviations for declaration and verification
Standard deviation (dB)
σ (production) σ (total) σ (reference)
P t M
0,7 to 1,5 1,0 to 1,7 2,0
2 Normative references
This clause of Part 1 is applicable except as follows:
Addition:
ISO 3743-1:2010, Acoustics – Determination of sound power levels and sound energy levels
of noise sources using sound pressure – Engineering methods for small movable sources in
reverberant fields – Part 1: Comparison method for a hard-walled test room
ISO 3744:2010, Acoustics – Determination of sound power levels and sound energy levels of
a noise sources using sound pressure – Engineering methods for an essentially free field over
a reflecting pane
3 Terms and definitions
This clause of Part 1 is applicable except as follows:
Addition:
3.101
running period
for a refrigerator, frozen-food storage cabinet or and food freezer, period which begins when
the compressor turns on and ends when the compressor turns off
Note 1 to entry: If, however, the compressor runs for longer than 4 h, an aperiodic behaviour with no specific
running period can be identified.

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period which begins when the compressor or another cooling system turns on and ends when
the compressor or the cooling system turns off
3.102
accessory
detachable part intended to be loaded by things to be cooled
3.103
temperature control cycle
time within the repetitive temperature pattern between two successive temperature warmest
points or two successive temperature coldest points
3.104
steady state
considered as being achieved when the mean values of the compartment internal
temperatures as stated in 6.4.2 are within the mentioned tolerances over a temperature
control cycle
3.105
refrigerating appliance
insulated cabinet with one or more compartments that are controlled at specific temperatures
and are of suitable size and equipped for household use, cooled by natural convection or a
forced convection system whereby the cooling is obtained by one or more energy-consuming
means
Note 1 to entry: From the point of view of installation, there are various types of household refrigerating
appliances (free-standing, portable, wall-mounted, built-in, etc.).
3.106
aperiodic behaviour
behaviour without specific running period when the compressor or the cooling system (in
appliances without compressor) runs for longer than 4 h
4 Measurement methods and acoustical environments
This clause of Part 1 is applicable except as follows:
4.2 Direct method
Addition:
NOTE 101 If pure tone components are present in the noise emitted by the source, the estimated standard
deviation of the measured sound pressure levels in the special reverberation room can increase. In such cases
additional microphone positions or source positions could be necessary as specified in ISO 3743-2.
4.3 Comparison method
Addition:
NOTE 101 If pure tone components are present in the noise emitted by the source, the estimated standard
deviation of the measured sound pressure levels in the hard-walled test room or in the special reverberation room
can increase. In such cases additional microphone positions or source positions could be necessary as specified in
ISO 3743-1 or ISO 3743-2.
5 Instrumentation
This clause of Part 1 is applicable except as follows:

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5.2.1
Replacement:
The temperature is determined with instruments having an accuracy of ± 0,5 °C.
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:
Loose accessories inside the appliance (e.g. racks or ice-trays) which could unusually vibrate
when empty shall be adjusted or fixed, for example by tape. Doors or lids shall be closed.
If available, adjustable feet shall be adjusted according to the manufacturer’s instructions to
give minimum noise emission.
6.1.3
Replacement:
Prior to noise measurements, the appliance, equipped as for intended use, shall have been in
operation for the running-in for at least 16 h at an ambient temperature as specified in 6.3.
During the running-in the thermostat adjustment has to be ascertained which establishes the
test temperature as specified in 6.4.2.
6.1.4
Replacement:
Immediately before each series of noise measurements, the appliance shall be operated until
a steady state has been reached but at least for three complete running periods.
6.2 Supply of electrical energy and of water or gas
6.2.4 Not applicable.
6.3 Climatic conditions
Modification:
ambient temperature       t   = 23 °C ± 3 °C
6.4 Loading and operating of appliances during test
6.4.1
Replacement:
The appliance shall operate without a load (i.e. empty).

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Adjustable slots and openings between different compartments which may be operated by the
user shall be closed.
6.4.2
Replacement:
For determining To determine the noise emission of an appliance, it shall be operated at the
following compartment internal temperatures.
• Refrigerators
fresh-food storage compartment: 5 °C ± 2 K
frozen-food storage compartment: no limitation
chill compartment (if applicable): no limitation
• Freezers
food freezer compartment: –22 °C ± 2 K
• Refrigerator-freezers
fresh-food storage compartment: 5 °C ± 2 K
food freezer compartment without separate thermostat: no limitation
food freezer compartment with separate thermostat: – 22 °C ± 2 K
chill compartment (if applicable): no limitation
• Fresh-food storage compartment: + 4 °C ± 2 K
• Frozen compartments with individual user adjustable setting:
3- or 4-star compartment – 18 °C ± 2 K
2-star compartment – 12 °C ± 2 K
1-star compartment – 6 °C ± 2 K
0-star compartment 0 °C ± 2 K
• Chill compartment with individual user adjustable setting: + 2 °C ± 2 K
• Wine storage or cellar compartment with individual user adjustable setting: 13 K ± 2 K
below ambient temperature. If temperature setting is not possible within this tolerance, the
temperature difference shall be close to 13 K, but in any case, larger than 11 K
• Pantry compartment with individual user adjustable setting: 8 K ± 2 K below ambient
temperature. If temperature setting is not possible within this tolerance, the temperature
difference shall be close to 8 K, but in any case, larger than 6 K
• Frozen, chill, wine storage, cellar and pantry compartments without individual user
adjustable setting: no limitation
• Variable temperature compartment: has to be considered as the compartment type with
the lowest achievable target temperature
These temperatures shall be measured with temperature probes, the sensors of which are
inserted in the centre of solid cylinders made of brass or tin-covered copper having a mass of
25 g with a tolerance of ±5 % and of minimum external area (diameter = height = about ≥
15,2 mm), located in the geometric centre of the storage compartments; they shall be
considered to be the mean values over the temperature control cycle.
NOTE 101 This temperature is the air temperature and not the test temperature that is measured in test packages
in accordance with IEC 62552-2. The air temperature of −22 °C approximately corresponds to a test package
temperature of −18 °C.
Combined Appliances with two compressors shall be tested with both compressors in the
running period of the refrigerator compressor during the continuous operating of the freezer
compressor.
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NOTE 102 101 In the case of simultaneous running of two compressors, beats are possible.
6.4.3
Replacement:
It is recommended to record the power consumption during operation. From this time history,
the running period of the compressor can be determined.
Defrosting mode is not considered as normal operation. This should be taken into account
when running periods are defined from observing power consumption.
6.5 Location and mounting of appliances
6.5.2 Not applicable.
6.5.3
Modification:
D = 1 cm ± 0,5 cm
6.5.5
Addition:
Appliances specified by the manufacturer for building under a counter or for placing under a
worktop between cabinets (under-counter types) shall be built-in according to the
manufacturer’s instructions in an appropriate test enclosure according to Annex B of Part 1.
Regardless of the manufacturer’s instructions, the test enclosure shall have a back plane.
When measuring a device to be built-in, care should be taken that the ventilation around the
appliance is according to the manufacturer’s instructions; this can imply special precautions at
the bottom or top of the test enclosure.
7 Measurement of sound pressure levels
This clause of Part 1 is applicable except as follows:
7.1 Microphone array, measurement surface and RSS location for essentially free-
field conditions over reflecting plane(s)
7.1.3
Replacement:
For floor-standing cabinet-type appliances for placing against a wall, including built-in
appliances of larger size with a height exceeding 2 d, but less than or equal 5 d, the
measurement surface is a parallelepiped with 10 microphone positions, as specified in
Figure 101. Additional measurement positions may be required according to 7.3.2 in
accordance with Clause C.1 of ISO 3744:19942010. The number of microphone positions may
also be reduced according to 7.4.2 in accordance with Clause C.1 of ISO 3744:19942010.
NOTE 101 The front of the appliance is directed in the direction of the x-axis.
The preferred value of the measurement distance d is 1 m.

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For determining time histories, frequency spectra, etc. of the appliance, the microphone
position no. 7 is recommended for the 10-microphone array.
7.1.5 and 7.1.6 Not applicable.
7.4 Measurements
7.4.1
Addition:
The A-weighted time-averaged sound pressure level shall be measured from 1 min after the
start of a the steady state running period to the end of this running period. In case of
aperiodic behaviour, the A-weighted, time-averaged sound pressure level shall be measured,
starting from an arbitrary point in time within a running period. In this case, the duration of
one measurement interval is 30 min.
For appliances without compressor the duration of one measurement interval is reduced to at
least 5 min.
To obtain the final result, three consecutive measurements shall be carried out on three
consecutive running periods. In case of aperiodic behaviour, three consecutive
measurements, which are regularly spaced by 15 min intervals, shall be performed within the
same running period. If, in the case of aperiodic behaviour, the running period terminates (i.e.
all compressors stop) prior to having finished all measurements aperiodic behaviour, the
complete measurement is void and shall be repeated within one running period.
The final result will be the logarithmic mean of these three measurements. If, however the
difference between any two of the measurements exceeds 2 dBA, three additional
measurements shall be carried out, and the final result will be the logarithmic mean of the six
measurements.
8 Calculation of sound pressure and sound power levels
This clause of Part 1 is applicable.
9 Information to be recorded
This clause of Part 1 is applicable except as follows:
9.7.3 and 9.7.4 Not applicable.
9.12.5 Not applicable.
10 Information to be reported
This clause of Part 1 is applicable except as follows:
10.3.4 and 10.3.5 Not applicable.
10.3.9 Not applicable.
Addition:
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Co-ordinates of microphone
Measurement surface
positions: z
no. x y z
y
Reference box
1 a -b 0,25c
2 2a 0 0,25c
3 a b 0,25c
4 2a -b 0,50c
5 2a b 0,50c 6
6 a -b 0,75c
7 2a 0 0,75c
8 a b 0,75c
9 2a -b c
2b
I
10 2a b c
I
d
d
x
2a
IEC  275/13
Measurement surface area:
S = 2(2ac + 2ab + bc)
Figure 101 – Measurement surface – parallelepiped – with key microphone positions
for high floor-standing appliances placed against a wall
I
1/4 c
1/2 c
3/4 c
c = I + d
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Annexes
The annexes of Part 1 apply with the following exception:

Annex A
(normative)
Standard test table
This annex of Part 1 is not applicable.

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Bibliography
Addition:
IEC 62552, Household refrigerating appliances – Characteristics and test methods
IEC 62552-1, Household refrigerating appliances – Characteristics and test methods – Part 1:
General requirements
IEC 62552-2, Household refrigerating appliances – Characteristics and test methods – Part 2:
Performance requirements
IEC 62552-3, Household refrigerating appliances – Characteristics and test methods – Part 3:
Energy consumption and volume
_____________
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SOMMAIRE
AVANT-PROPOS . 19
INTRODUCTION . 22
1 Domaine d'application et objet . 23
1.1 Domaine d’application . 23
1.2 Objet . 23
1.3 Incertitude de mesure . 24
1.101 Écart-type pour la déclaration et la vérification . 24
2 Références normatives . 24
3 Termes et définitions . 24
4 Méthodes de mesure et environnements acoustiques . 25
4.2 Méthode directe . 25
4.3 Méthode de comparaison . 25
5 Équipement de mesure . 26
6 Fonctionnement et emplacement des appareils en essai . 26
6.1 Équipement et conditionnement des appareils . 26
6.2 Alimentation en énergie électrique et en eau ou en gaz . 26
6.3 Conditions climatiques . 26
6.4 Charge et fonctionnement des appareils pendant l'essai . 27
6.5 Emplacement et montage des appareils . 28
6.5.2 Non applicable. . 28
7 Mesure des niveaux de pression acoustique . 28
7.1 Réseau de microphones, surface de mesure et emplacements de RSS pour
des conditions essentiellement en champ libre au-dessus d'un ou de
plusieurs plans réfléchissants . 29
7.4 Mesures . 29
8 Calcul des niveaux de pression acoustique et de puissance . 29
9 Informations à enregistrer . 30
10 Informations à consigner . 30
Annexes . 32
Annexe A (normative) Tableau d'essais normalisés . 32
Bibliographie . 33

Figure 101 – Surface de mesure – parallélépipède – avec positions clés des
microphones pour appareils posés sur un sol surélevé placés contre un mur . 31

Tableau 101 – Écarts-types des niveaux de puissance acoustique. 24
Tableau 102 – Écarts-types pour la déclaration et la vérification . 24

+AMD2:2024 CSV © IEC 2024
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
____________
APPAREILS ÉLECTRODOMESTIQUES ET ANALOGUES –
CODE D'ESSAI POUR LA DÉTERMINATION DU BRUIT AÉRIEN –
Partie 2-14: Exigences particulières pour les réfrigérateurs,
conservateurs et congélateurs
AVANT-PROPOS
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Cette version consolidée de la Norme IEC officielle et de son amendement a été
préparée pour la commodité de l'utilisateur.
L'IEC 60704-2-14 édition 2.2 contient la deuxième édition (2013-01) [documents
59/590/FDIS et 59/595/RVD], son amendement 1 (2019-03) [documents 59M/104/FDIS et
59M/105/RVD] et son amendement 2 (2024-02) [documents 59M/167/FDIS et
59M/168/RVD].
Dans cette version Redline, une ligne verticale dans la marge indique où le contenu
technique est modifié par les amendements 1 et 2. Les ajouts sont en vert, les
suppressions sont en rouge, barrées. Une version Finale avec toutes les modifications
acceptées est disponible dans cette publication.

– 20 – IEC 60704-2-14:2013+AMD1:2019
+AMD2:2024 CSV © IEC 2024
La Norme internationale IEC 60704-2-14 a été établie par le comité d'études 59 de l'IEC:
Aptitude à la fonction des appareils électrodomestiques.
Cette deuxième édition constitue une révision technique.
Cette édition inclut les modifications techniques significatives suivantes par rapport à l'édition
précédente:
a) la description d'une enceinte d'essai appropriée a été supprimée de la présente partie de
l'IEC 60704 et a été incorporée dans la Partie 1 de l'IEC 60704-1;
b) les valeurs des écarts-types des niveaux de puissance acoustique déterminés selon la
présente partie de l'IEC 60704 ont été ajoutées.
La version française de cette norme n
...