IEC 60704-2-20:2026

IEC 60704-2-20 ®
Edition 1.0 2026-02
INTERNATIONAL
STANDARD
EXTENDED VERSION
This full version of IEC 60704-2-20:2026 includes the content of the references made
to IEC 60704-1:2021
Household and similar electrical appliances - Test code for the determination
of airborne acoustical noise -
Part 2-20: Particular requirements for wet hard floor cleaning appliances
ICS 17.140.20; 97.080 ISBN 978-2-8327-1088-3
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CONTENTS
FOREWORD . 3
INTRODUCTION to IEC 60704-1:2021 . 5
INTRODUCTION to IEC 60704-2-20:2026 . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Measurement methods and acoustical environments . 10
4.1 General . 10
4.2 Direct method . 10
4.3 Comparison method . 11
4.4 Acoustical environments . 12
4.4.1 General requirements and criterion for adequacy of the test
environment . 12
4.4.2 Criterion for background noise level . 12
4.4.3 Environmental conditions . 12
4.5 Measurement uncertainties . 12
4.5.1 General . 12
4.5.2 Standard deviations on repeatability and reproducibility and standard
deviations related to declaration and verification . 13
5 Instrumentation. 13
5.1 Instrumentation for measuring acoustical data . 13
5.2 Instrumentation for measuring climatic conditions . 14
5.3 Instrumentation for measuring operating conditions . 14
6 Operation and location of appliances under test . 14
6.1 Equipping and pre-conditioning of appliances . 14
6.2 Supply of electric energy and of water or gas . 16
6.3 Climatic conditions . 17
6.4 Loading and operating of appliances during tests . 17
6.5 Location and mounting of appliances . 18
7 Measurement of sound pressure levels . 22
7.1 Microphone array, measurement surface and RSS location for essentially
free field conditions over reflecting plane(s) . 22
7.2 Microphone array and RSS location in hard-walled test rooms . 24
7.3 Microphone array and RSS location in special reverberation test rooms . 24
7.4 Measurements . 24
8 Calculation of sound pressure and sound power levels . 25
8.1 General . 25
8.2 Corrections for background noise levels . 25
8.3 Corrections for the test environment . 26
8.4 Calculation of sound pressure level averaged over the microphone positions . 26
8.5 Calculation of sound power levels with the comparison method . 27
8.6 Calculation of sound power levels in free field conditions over a reflecting
plane . 27
8.7 Calculation of A-weighted sound power level with the direct method in
special reverberation test rooms . 27
9 Information to be recorded . 28
9.1 General data . 28
9.2 Description of appliance under test . 28
9.3 Measurement method . 28
9.4 Acoustical test environment . 29
9.5 Instrumentation . 29
9.6 Equipment and pre-conditioning of appliance under test . 29
9.7 Electric supply, water supply, etc. . 29
9.8 Climatic conditions . 29
9.9 Operation of the appliance under test . 30
9.10 Location and mounting of the appliance under test . 30
9.11 Microphone array . 30
9.12 Measurement data . 30
9.13 Calculated sound pressure and sound power levels . 31
9.14 Reporting . 31
10 Information to be reported . 31
10.1 General data . 31
10.2 Appliance under test . 31
10.3 Test conditions for the appliance. 31
10.4 Acoustical data . 32
Annex A (normative) Standard test table . 33
Annex B (normative) Test enclosure . 34
Annex C (informative) Guidelines for the design of simple test rooms with essentially
free field conditions . 35
Bibliography . 36

Figure 101 – Appliance with cleaning head connected directly . 20
Figure 102 – Appliance with the cleaning head connected by hose and connecting tube . 21
Figure 4 – Measurement surface – hemisphere – with key microphone positions, for
hand-held, table type and floor-treatment appliances . 23

Table 1 – Standard deviations of sound power levels . 13
Table 2 – Standard deviations for declaration and verification . 13

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
Household and similar electrical appliances -
Test code for the determination of airborne acoustical noise -
Part 2-20: Particular requirements for wet hard floor cleaning appliances
FOREWORD
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This extended version (EXV) of the official IEC Standard provides the user with the full
content of the Standard.
to IEC 60704-1:2021.
The specific content of IEC 60704-2-20:2026 is displayed on a blue background.
IEC 60704-2-20 has been prepared by subcommittee 59F: Surface cleaning appliances, of
IEC technical committee 59: Performance of household and similar electrical appliances. It is
an International Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
59F/547/FDIS 59F/556/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement,
available at www.iec.ch/members_experts/refdocs. The main document types developed by
IEC are described in greater detail at www.iec.ch/publications.
This document is intended to be used in conjunction with IEC 60704-1:2021, Household and
similar electrical appliances - Test code for the determination of airborne acoustical noise –
Part 1: General requirements.
The relevant text of IEC 60704‑1:2021 as amended by this document establishes the test
code for wet hard floor cleaners.
This document supplements or modifies the corresponding clauses in IEC 60704-1:2021.
When a particular subclause of IEC 60704-1:2021 is not mentioned in this document, 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 IEC 60704-1:2021 should be adapted accordingly.
Subclauses, tables, and figures that are additional to those in Part 1 are numbered starting
from 101. 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.
In this standard, the following print types are used:
– terms defined in Clause 3: bold type.
A list of all 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 document 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.
INTRODUCTION to IEC 60704-1:2021
Although the noise emitted by household appliances does not generally present a hazard to
the hearing of the operator and other exposed persons, the need for standardization
procedures for the determination of the noise emitted has been recognized for a long time.
Such procedures should be specified, not only for special types of appliances, but also the
principles should be applicable to the majority of appliances in general use.
Generally, the determination of noise levels is only part of a comprehensive testing procedure
covering many aspects of the properties and performances of the appliance. It is therefore
important that the requirements for noise measurements (such as test environment,
instrumentation, and amount of labour involved) be kept at a modest level.
The results of noise measurements are used for many purposes, for example for noise
declaration, as well as for comparing the noise emitted by a specific appliance to the noise
emitted by other appliances of the same family. In other cases, the results are taken as a
basis for engineering action in the development stages of new pieces of equipment, or in
deciding on means for sound insulation. For all purposes, it is important to specify procedures
with known accuracy so that the results of measurements taken by different laboratories can
be compared.
These conditions have, as far as possible, been taken into account in the preparation of this
test code. The acoustic measuring methods are based on those described in
ISO 3743‑1:2010, ISO 3743-2:2018 and ISO 3744:2010.
The adoption of these methods permits the use of hemi-anechoic rooms, special reverberation
test rooms and hard-walled test rooms. The result of the measurements is the sound power
level of the appliance. Within the measuring uncertainty specific to these methods, the results
from the determination under free field conditions over a reflecting plane are equal to those
obtained in reverberant fields.
The use of intensity methods as described in ISO 9614-1:1993, ISO 9614-2:1996, and
ISO 9614-3:2002 is applicable under special conditions, which are described in specific parts
of the IEC 60704-2 series.
This test code is concerned with airborne noise only. In some cases, structure-borne noise,
for example transmitted to the adjoining room, can be of importance.
INTRODUCTION to IEC 60704-2-20:2026
The measuring conditions specified in this document 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 wet hard floor cleaners.
It is recommended to consider the determination of noise levels as part of a comprehensive
testing procedure covering many aspects of properties and performance of household wet
hard floor cleaners.
NOTE As stated in the introduction to IEC 60704-1, this test code is concerned with airborne noise only.

1 Scope
This part of IEC 60704 applies to electric appliances (including their accessories or
components) for household and similar use, supplied from mains or from batteries.
By "similar use" is understood the use in conditions similar to those found in households, for
example in inns, coffee houses, tea rooms, hotels, barber or hairdresser shops, launderettes,
etc., if not otherwise specified in the IEC 60704-2 series.
This document does not apply to
– appliances, equipment, or machines designed exclusively for industrial or professional
purposes;
– appliances that are integrated parts of a building or its installations, such as equipment for
air conditioning, heating and ventilating (except household fans, cooker hoods, free-
standing heating appliances, dehumidifiers, air cleaners, and stand-alone water heaters),
oil burners for central heating, pumps for water supply and for sewage systems;
– separate motors or generators and
– appliances exclusively for outdoor use.
For determining and verifying noise emission values declared in product specifications, see
IEC 60704-3:2019.
This document specifies the determination of airborne acoustical noise of mains operated and
cordless wet hard floor cleaning appliances for household or similar use. In the case of
appliances with combined functionality, this document only addresses the wet cleaning
functionality.
This document does not apply to wet hard floor cleaning appliances for industrial or
professional purposes and robotic wet hard floor cleaning appliances.
NOTE 101 This document is not intended for cleaning appliances according to IEC 60335-2-79, IEC 60704-2-1,
IEC 60704-2-17.
This document describes the determination of the noise emission of wet hard floor cleaners
under normal operating conditions on hard floor in accordance with 4.6 of
IEC/ASTM 62885-6:2023.
NOTE 102 For determining and verifying noise emission values declared in product specifications, see
IEC 60704-3.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their
content constitutes requirements of this document. For dated references, only the edition
cited applies. For undated references, the latest edition of the referenced document (including
any amendments) applies.
IEC 60704-2 (all parts), Household and similar electrical appliances – Test code for the
determination of airborne acoustical noise
IEC 60704-3:2019, Household and similar electrical appliances – Test code for the
determination of airborne acoustical noise – Part 3: Procedure for determining and verifying
declared noise emission values
IEC 61260-1:2014, Electroacoustics – Octave-band and fractional-octave-band filters – Part
1: Specifications
IEC 61672-1:2013, Electroacoustics – Sound level meters – Part 1: Specifications
IEC/ASTM 62885-6:2023, Surface cleaning appliances - Part 6: Wet hard floor cleaning
appliances for household and similar use - Methods for measuring the performance
ISO 3743-1:2010, Acoustics – Determination of sound power levels of noise sources –
Engineering methods for small, movable sources in reverberant fields – Part 1: Comparison
method for hard-walled test rooms
ISO 3743-2:2018, Acoustics – Determination of sound power levels of noise sources using
sound pressure – Engineering methods for small, movable sources in reverberant fields –
Part 2: Methods for special reverberation test rooms
ISO 3744:2010, Acoustics – Determination of sound power levels of noise sources using
sound pressure – Engineering method in an essentially free field over a reflecting plane
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
ISO 9614-3:2002, Acoustics – Determination of sound power levels of noise sources using
sound intensity – Part 3: Precision method for measurement by scanning
ISO 6926:2016, Acoustics – Requirements for the performance and calibration of reference
sound sources used for the determination of sound power levels
ISO 12001:1996, Acoustics – Noise emitted by machinery and equipment – Rules for the
drafting and presentation of a noise test code
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply. Terms and
definitions pertinent to the determination of sound power levels can be found in ISO 3743-
1:2010, ISO 3743-2:2018 and ISO 3744:2010.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
measurement time interval
portion or a multiple of an operational period or operational cycle for which the sound power
levels are determined
3.2
operational period
interval of time during which a specified process is accomplished by the appliance under test
(for example, washing or rinsing or drying for a dishwasher)
3.3
operational cycle
specific sequence of operational periods occurring while the appliance under test performs a
complete work cycle
Note 1 to entry: During the operational cycle, each operational period is associated with a specific process that
can occur only once, or can be repeated (for example, washing and rinsing and drying for a dishwasher).
3.4
time history
continuous recording of the sound pressure level (for a distinct microphone position) as a
function of time, which is obtained during one or more operational periods of an operational
cycle
3.5
reference box
hypothetical right parallelepiped terminating on the reflecting plane(s) on which the noise
source under test is located, that just encloses the source including all the significant sound
radiating components and any test table on which the source is mounted
[SOURCE: ISO 3744:2010, 3.10, modified – The note has been omitted.]
3.6
test enclosure
enclosure used for simulating the typical acoustic built-in or/and mounting conditions
3.101
wet hard floor cleaner
electrically operated appliance that removes wet or dry stains and soils (e.g. beverage and
food stains, floor grime, etc.) from a hard floor surface to be cleaned by use of water alone, a
detergent solution mix, or use of steam, and can employ an air flow created by a vacuum
developed within the unit, the removed material being separated in the appliance and the
cleaned suction air being returned to the ambient air
[SOURCE: IEC/ASTM 62885-6:2023, 3.1]
3.102
cordless wet hard floor cleaner
wet hard floor cleaner that is not mains-operated
Note 1 to entry: The term "cordless" is equivalent to "battery-operated" throughout the document.
[SOURCE: IEC/ASTM 62885-6:2023, 3.2]
3.103
steam cleaner
wet hard floor cleaner that uses steam, and generally employs a soft absorbent pad to
transfer hot moisture to the floor surface and to absorb and remove the stains and soils
[SOURCE: IEC/ASTM 62885-6:2023, 3.3]
3.104
cleaning head
plain nozzle, pad, or brush attached to a wet hard floor cleaner that is applied to a surface
to be cleaned
[SOURCE: IEC/ASTM 62885-6:2023, 3.4]
3.105
active nozzle
cleaning head provided with a driven agitation device to assist stain or soil removal
[SOURCE: IEC/ASTM 62885-6:2023, 3.5]
3.106
standard hard floor
part of the floor on which the wet hard floor cleaner and its cleaning head is placed for the
measurement
4 Measurement methods and acoustical environments
4.1 General
This document is concerned with objective methods of engineering accuracy grade 2 in
accordance with ISO 12001:1996 for determining sound power levels L , expressed in
W
decibels (dB), with reference to a sound power of one picowatt (1 pW), of airborne acoustical
noise within the specified frequency range of interest (generally including the octave-bands
with centre frequencies from 125 Hz to 8 000 Hz), and for prescribed operating conditions of
the appliance to be measured.
Methods for determining sound power levels with precision accuracy grade 1 in accordance
with ISO 12001:1996, as specified for example in ISO 3741 and ISO 3745, are not included in
this document. They may, however, be applied if the appropriate test environment and
instrumentation are available.
NOTE 1 The noise values obtained under the described conditions of this document will not necessarily
correspond to the noise experienced under the operational conditions of practical use.
NOTE 2 For quality control during production etc., simplified methods can be appropriate. For noise reduction
purposes, other measurement methods employing, for example, narrow-band analysis or intensity techniques
usually have to be applied. These methods are not covered by this document.
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. Within the
accuracy range of this document, the sound power of a machine is basically 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, L , in dB
WA
(re 1 pW).
According to this document, two principal methods exist, the direct method and the
comparison method, as described in 4.2 and 4.3. These two methods can be used
alternatively.
Different types of environments, as described in 4.4, may be used. A part of the IEC 60704-2
series may, if necessary, exclude one or several combinations among those available.
4.2 Direct method
The direct method can be used only for measurements in qualified test environments in
accordance with ISO 3744:2010 for free field conditions over reflecting plane(s), and in
accordance with ISO 3743-2:2018 for special reverberation test rooms.
With this method, the sound power level is determined
– in free field conditions over reflecting plane(s), from time-averaged sound pressure levels
(on a mean-square basis) over the measurement surface and from the area of the
measurement surface, S, or
– in reverberation and special reverberation test rooms, from averaged sound pressure
levels, and from the reverberation time and the volume of the test room.
If for a measurement in a free field, reverberation or special reverberation room is not
possible because the appliance cannot be placed or operated in such an environment, the
intensity method in accordance with ISO 9614-1:1993, ISO 9614-2:1996, and ISO 9614-
3:2002 shall be applied. For the intensity method, the standard deviations given in the parts of
the IEC 60704-2 series and IEC 60704-3:2019 are not applicable unless stated explicitly.
These methods yield results expressed in A-weighted sound power levels (and in octave- or
1/3 octave-band sound power levels, if required) that are calculated directly from measured
sound pressure levels.
NOTE This method can also be used in conjunction with more precise methods, such as those given in ISO 3741
and ISO 3745.
If audible discrete tones 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 can be
necessary, as specified in ISO 3743-2.
If an operator is necessary, it is considered as part of the test environment. Therefore, the
operator shall be present also during the reverberation time measurement with the RSS. The
position of the operator shall be approximately at the same position as in the measurement
with the test sample.
4.3 Comparison method
The comparison method for measurement is explicitly described in ISO 3743-1:2010 and in
ISO 3743-2:2018.
NOTE The term "comparison method" is not explicitly given in ISO 3744:2010, but when applying the "absolute
comparison test" for the determination of the environmental correction given in A.3 of ISO 3744:2010, by using a
reference sound source, the procedure is, in fact, a comparison method.
With this method, the sound power level is determined by comparing the averaged values (on
a mean-square basis) of the sound pressure levels produced by the source in the test room to
the averaged values of the sound pressure levels produced in the same room by a calibrated
reference sound source (RSS) of known sound power output, complying with the requirements
of ISO 6926:2016. The difference in sound pressure levels is equal to the difference in sound
power levels when conditions are the same for both sets of measurements.
This method yields results expressed in octave- or 1/3 octave-band sound power levels, and
the A-weighted sound power level is calculated from the octave- or 1/3 octave-band sound
power levels.
To check whether there is a systematic difference between results obtained in different
environments, the use of the comparison method is recommended.
If audible discrete tones 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 can be necessary, as specified in ISO 3743-1 or ISO 3743-2.
If an operator is necessary, it is considered as part of the test environment. Therefore, the
operator shall be present also during the comparison measurement with the RSS. The
position of the operator shall be approximately at the same position as in the measurement
with the test sample.
4.4 Acoustical environments
4.4.1 General requirements and criterion for adequacy of the test environment
They are given in the following clauses:
– Clause 4 of ISO 3743-1:2010 for hard-walled test rooms;
– Clause 5 of ISO 3743-2:2018 for special reverberation test rooms and
– Clause 4 of ISO 3744:2010 for free-field conditions over a reflecting plane.
A classification of different types of noise is given in ISO 12001:1996. The method specified
in ISO 3744:2010 is suitable for measurements of all types of noise emitted by household
appliances. The methods specified in ISO 3743-1:2010 and ISO 3743-2:2018 are suitable for
all types of noise, except for sources of impulsive noise consisting of short-duration noise
bursts. This will be taken into account in the preparation of parts of the IEC 60704-2 series.
The method specified in ISO 3744:2010 is applicable to noise sources of any size. Limitations
for the size of the source are given in 4.2 of ISO 3743-1:2010 and in Clause 5 of
ISO 3743-2:2018. This will be taken into account in the preparation of parts of the
IEC 60704-2 series.
NOTE For free-field conditions over a reflecting plane, the absolute comparison test for the qualification of the
environment, described in Clause A.2 of ISO 3744:2010, is preferred.
Guidelines for the design of simple test rooms with free-field conditions are given in Annex C.
Guidelines for the design of a suitable special reverberation test room are given in
ISO 3743-2:2018, Annex A.
The methods specified in ISO 3743-1, ISO 3743-2 and ISO 3744 can be used for measuring
noise emitted by wet hard floor cleaners.
4.4.2 Criterion for background noise level
Requirements for the background noise level are given in 4.5 of ISO 3743-1:2010, in 6.5 of
ISO 3743-2:2018 and in 4.2 of ISO 3744:2010. Averaged over the microphone positions, the
background noise level shall be at least 6 dB below, and preferably more than 15 dB below,
the sound pressure level to be measured.
NOTE If the difference between the sound pressure levels of the background noise and the appliance noise is
less than 6 dB, see 8.2.
4.4.3 Environmental conditions
Environmental conditions having an adverse effect on the microphone used for the
measurements (for example, strong electric or magnetic fields, wind, impingement of air
discharge from the equipment being tested, high or low temperatures) shall be avoided by
proper selection or positioning of the microphone.
The instructions of the manufacturers of the measurement instruments regarding adverse
environmental conditions shall be followed. The microphone shall always be oriented in such
a way that the angle of incidence of the sound waves is that for which the microphone is
calibrated.
4.5 Measurement uncertainties
4.5.1 General
The estimated values of the standard deviations of reproducibility of sound power levels
determined in accordance with this document are given in 9.1 of ISO 3743-1:2010, in 11.1 of
ISO 3743‑2:2018 and in 9.1 of ISO 3744:2010. But for a particular family of appliances of
similar size with similar operating conditions, the standard deviations of reproducibility can be
smaller than these values. Hence, in the IEC 60704-2 series, standard deviations smaller than
those listed in ISO standards can be stated if substantiation is available from the results of
suitable interlaboratory tests.
In the case of discrepancies between the measurements where the results normally remain
inside the foreseen standard deviation, it can be helpful to perform measurements according
to the upper grade of accuracy: grade 1, laboratory or precision, as described in ISO 3741 or
ISO 3745.
4.5.2 Standard deviations on repeatability and reproducibility and standard
deviations related to declaration and verification
For wet hard floor cleaners the estimated values of standard deviations of sound power
levels determined in accordance with this document are provided in Table 1.
Table 1 – Standard deviations of sound power levels
Standard deviation
(dB)
σ (repeatability) σ (reproducibility)
r R
0,5 1,0
NOTE The values are derived from the results of a round robin test (RRT) conducted in 2025 with 6 different
wet hard floor cleaners in 10 participating laboratories.

For the purpose of determining and verifying declared noise emission values for wet hard
floor cleaners, in accordance with IEC 60704-3, the following values provided in Table 2
apply:
Table 2 – Standard deviations for declaration and verification
Standard deviation
(dB)
σ (production) σ (total) σ (reference)
P t M
1,0 to 1,7 1,3 to 2,0 2,0
NOTE 101 The values of standard deviations in Table 2 are not verified and under further consideration.
5 Instrumentation
5.1 Instrumentation for measuring acoustical data
Requirements for the instrumentation system and for its calibration are given in Clause 5 of
ISO 3743-1:2010, in Clause 7 of ISO 3743-2:2018 and in Clause 5 of ISO 3744:2010.
The instrumentation system shall meet the requirements for a type 1 instrument laid down in
IEC 61672-1:2013, in accordance with the basic standard used. For measurements in octave-
and 1/3 octave-bands, the instrumentation system shall meet the requirements of
IEC 61260‑1:2014.
RSS shall meet the requirements of ISO 6926:2016, and shall be calibrated annually.
The use of windscreens is recommended. If necessary, the observed sound pressure level
shall be corrected for changes in the microphone sensitivity, in accordance with the
instructions accompanying the instrumentation.
5.2 Instrumentation for measuring climatic conditions
5.2.1 The temperature is determined with instruments having an accuracy of ±1 °C.
5.2.2 The relative humidity is determined with instruments having an absolute accuracy of
±2 % within the measuring range.
5.2.3 The absolute air pressure is determined with instruments having an accuracy of
±0,5 kPa.
5.3 Instrumentation for measuring operating conditions
5.3.1 The voltage at the plug of the cable or cord of mains-powered appliances is
measured with voltmeters having an accuracy of class 0,5 instruments.
5.3.2 The voltage at the battery terminals of battery-powered appliances is measured with
voltmeters having an accuracy of class 0,5 instruments.
5.3.3 The rotational speed of motors, attachments, etc. is measured, if necessary, with
speed indicators having an accuracy of ±1 % of full scale.
6 Operation and location of appliances under test
6.1 Equipping and pre-conditioning of appliances
6.1.1
6.1.1.101 General
The tube grip of cleaners with suction hose or the handle of other cleaners shall be held at a
height of (800 ± 50) mm above the test surface. Any telescopic suction tubes or sticks shall
be extended to maximum length. For cleaning heads without pivoting connectors, it shall be
ensured that the bottom of the cleaning head be made parallel with the test surface by
adjusting the handle height within the tolerances. If this is not possible, the length of a
telescopic tube or stick can be adjusted. Any adjustment shall be reported.
For declaration and compliance purposes, related tests conducted on a hard floor surface
shall be conducted with the same wet hard floor cleaner setting configurations such as
power, cleaning head and cleaning head setting.
The wet hard floor cleaner shall be used and adjusted in accordance with the manufacturer's
instructions for normal operation for the test to be carried out. Height adjustment controls (if
any) for the cleaning head shall be set as appropriate and the position noted. Any safety-
related device shall be allowed to operate.
For a wet hard floor cleaner having more than one cleaning head, the cleaning head
recommended for performance measurement by the manufacturer in the user instructions
shall be used for noise measurements. If no instructions are provided, the wet hard floor
cleaner shall be tested with the cleaning head producing the highest noise level. If the
appliance includes an additional powered nozzle for cleaning hard floors, measurements shall
be carried out for both cleaning heads. Noise measurements shall be recorded for each
cleaning head used.
The cleaning head us
...

IEC 60704-2-20 ®
Edition 1.0 2026-02
NORME
INTERNATIONALE
Appareils électrodomestiques et analogues - Code d’essai pour la détermination
du bruit aérien -
Partie 2-20: Exigences particulières pour les appareils de nettoyage des sols
durs et mouillés
ICS 17.140.20; 97.080 ISBN 978-2-8327-1062-3

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite ni
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SOMMAIRE
AVANT-PROPOS . 2
INTRODUCTION . 4
1 Domaine d'application . 5
2 Références normatives . 5
3 Termes et définitions . 5
4 Méthodes de mesure et environnements acoustiques . 6
4.2 Méthode directe . 6
4.3 Méthode comparative . 6
4.4 Environnement acoustique . 7
4.5 Incertitudes de mesure . 7
5 Appareillage . 7
5.1 Appareillage pour la mesure des données acoustiques . 7
6 Fonctionnement et emplacement des appareils en essai . 8
6.1 Équipement et conditionnement préalable des appareils . 8
6.2 Alimentation en énergie électrique et en eau ou gaz . 10
6.4 Charge et fonctionnement des appareils lors des essais . 11
6.5 Emplacement et montage des appareils . 11
7 Mesure des niveaux de pression acoustique . 15
7.4 Mesures . 15
9 Informations à relever . 15
10 Informations à consigner . 15
10.3 Conditions d'essai de l'appareil . 15
Annexe A (normative) Table d'essai normalisée . 16
Annexe B (normative) Enceinte d'essai . 17

Figure 101 – Appareil avec tête de nettoyage reliée directement . 13
Figure 102 – Appareil avec tête de nettoyage reliée par un tuyau et un tube de
raccordement . 14

Tableau 1 – Écarts-types des niveaux de puissance acoustique . 7
Tableau 2 – Écarts-types pour la déclaration et la vérification . 7

COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
____________
Appareils électrodomestiques et analogues -
Code d'essai pour la détermination du bruit aérien -
Partie 2-20: Exigences particulières pour les appareils
de nettoyage des sols durs et mouillés

AVANT-PROPOS
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L'IEC ne saurait être tenue pour responsable de ne pas avoir identifié de tels droits de brevets.
L'IEC 60704-2-20 a été établie par le sous-comité 59F: Appareils de nettoyage des sols, du
comité d'étude 59 de l'IEC: Aptitude à la fonction des appareils électrodomestiques. Il s'agit
d'une Norme internationale.
Le texte de cette Norme internationale est issu des documents suivants:
Projet Rapport de vote
59F/547/FDIS 59F/556/RVD
Le rapport de vote indiqué dans le tableau ci-dessus donne toute information sur le vote ayant
abouti à son approbation.
La langue employée pour l'élaboration de cette Norme internationale est l'anglais.
Ce document a été rédigé selon les Directives ISO/IEC, Partie 2, il a été développé selon les
Directives ISO/IEC, Partie 1 et les Directives ISO/IEC, Supplément IEC, disponibles sous
www.iec.ch/members_experts/refdocs. Les principaux types de documents développés par
l'IEC sont décrits plus en détail sous www.iec.ch/publications.
Le présent document est destiné à être utilisé conjointement avec l'IEC 60704-1:2021,
Appareils électrodomestiques et analogues - Code d'essai pour la détermination du bruit
aérien - Partie 1: Exigences générales.
Le texte correspondant de l'IEC 60704‑1:2021 modifié par le présent document établit le code
d'essai pour les appareils de nettoyage des sols durs et mouillés.
Le présent document complète ou modifie les articles correspondants de l'IEC 60704-1:2021.
Lorsqu'un paragraphe particulier de l'IEC 60704-1:2021 n'est pas mentionné dans le présent
document, ce paragraphe s'applique pour autant que cela soit raisonnable. Lorsque la présente
norme mentionne "addition", "modification" ou "remplacement", il convient d'adapter les
exigences, modalités d'essai ou commentaires correspondants de l'IEC 60704-1:2021 en
conséquence.
Les paragraphes, tableaux et figures qui s'ajoutent à ceux de la Partie 1 sont numérotés à partir
de 101. Les annexes qui sont ajoutées sont désignées AA, BB, etc.
À l'exception de celles qui sont dans un nouveau paragraphe ou de celles qui concernent des
notes de la Partie 1, les notes sont numérotées à partir de 101, y compris celles des articles
ou paragraphes qui sont remplacés.
Dans la présente norme, les caractères d'imprimerie suivants sont utilisés:
– termes définis à l'Article 3: caractères gras.
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, se trouve
sur le site web de l'IEC.
Le comité a décidé que le contenu de ce document ne sera pas modifié avant la date de stabilité
indiquée sur le site web de l'IEC sous webstore.iec.ch dans les données relatives au document
recherché. À cette date, le document sera
– reconduit,
– supprimé, ou
– révisé.
INTRODUCTION
Les conditions de mesure spécifiées dans le présent document sont prévues pour assurer une
exactitude suffisante pour la détermination du bruit émis et la comparaison des résultats
mesurés par différents laboratoires tout en simulant, dans la mesure du possible, l'utilisation
pratique des appareils de nettoyage des sols durs et mouillés.
Il est recommandé d'envisager la détermination des niveaux de bruit dans le cadre d'une
procédure d'essai complète qui couvre plusieurs aspects des propriétés et caractéristiques
d'aptitude à la fonction des appareils de nettoyage des sols durs et mouillés.
NOTE Comme cela est indiqué dans l'introduction de l'IEC 60704-1, ce code d'essai concerne uniquement le bruit
aérien.
1 Domaine d'application
Addition:
Le présent document spécifie la méthode utilisée pour déterminer le bruit aérien émis par les
appareils de nettoyage des sols durs et mouillés à usage domestique ou analogue sur secteur
et sans cordon. Dans le cas des appareils dont les fonctions sont combinées, le présent
document traite uniquement de la fonction de nettoyage par voie humide.
Le présent document ne s'applique pas aux appareils de nettoyage des sols durs et mouillés
destinés à des usages industriels ou professionnels ni aux appareils de nettoyage des sols durs
et mouillés robotisés.
NOTE 101 Le présent document n'est pas destiné aux appareils de nettoyage selon l'IEC 60335-2-79,
l'IEC 60704-2-1 et l'IEC 60704-2-17.
Le présent document décrit la méthode utilisée pour déterminer le bruit émis par des appareils
de nettoyage des sols durs et mouillés qui fonctionnent dans les conditions normales
d'utilisation sur un sol dur conformément au 4.6 de l'IEC/ASTM 62885-6:2023.
NOTE 102 Pour la détermination et la vérification des valeurs d'émission sonore déclarées dans les spécifications
du produit, voir l'IEC 60704-3.
2 Références normatives
Addition:
IEC/ASTM 62885-6:2023, Appareils de nettoyage des sols - Partie 6: Appareils de nettoyage
des sols durs et mouillés à usage domestique et analogue - Méthodes de mesure de l'aptitude
à la fonction
3 Termes et définitions
Addition:
3.101
appareil de nettoyage des sols durs et mouillés
appareil électrique qui élimine les taches et salissures humides ou sèches (taches de boisson
et de nourriture, saletés sur le sol, par exemple) présentes sur une surface de sol dur qui doit
être nettoyée à l'eau seule, à la vapeur ou à l'aide d'un mélange de solutions de détergent, et
qui peut utiliser un débit d'air généré par le vide dans l'unité, le matériau éliminé étant séparé
dans l'appareil et l'air d'aspiration nettoyé étant renvoyé dans l'air ambiant
[SOURCE: IEC/ASTM 62885-6:2023, 3.1]
3.102
appareil de nettoyage des sols durs et mouillés sans cordon
appareil de nettoyage des sols durs et mouillés qui ne fonctionne pas sur secteur
Note 1 à l'article: Dans l'ensemble du présent document, le terme "sans cordon" est équivalent à "alimenté par
batterie".
[SOURCE: IEC/ASTM 62885-6:2023, 3.2]
3.103
appareil de nettoyage à vapeur
appareil de nettoyage des sols durs et mouillés qui utilise la vapeur et généralement une
lingette absorbante douce pour transférer l'humidité chaude sur la surface du sol et ainsi
absorber et éliminer les taches et salissures
[SOURCE: IEC/ASTM 62885-6:2023, 3.3]
3.104
tête de nettoyage
suceur simple, lingette ou brosse fixé(e) à l'appareil de nettoyage des sols durs et mouillés,
et qui est appliqué(e) sur la surface à nettoyer
[SOURCE: IEC/ASTM 62885-6:2023, 3.4]
3.105
suceur actif
tête de nettoyage qui est équipée d'un dispositif d'agitation entraîné pour éliminer les taches
ou les salissures
[SOURCE: IEC/ASTM 62885-6:2023, 3.5]
3.106
sol dur de référence
partie du sol sur laquelle l'appareil de nettoyage des sols durs et mouillés et sa tête de
nettoyage sont placés pour le mesurage
4 Méthodes de mesure et environnements acoustiques
4.2 Méthode directe
Addition:
Si le bruit émis par la source comporte des sons purs audibles, l'écart-type estimé des niveaux
de pression acoustique mesurés dans la salle réverbérante spéciale peut augmenter. Dans de
tels cas, des positions de microphones ou des positions de sources supplémentaires peuvent
être nécessaires, comme cela est spécifié dans l'ISO 3743-2.
Si un opérateur est nécessaire, il est considéré comme faisant partie de l'environnement
d'essai. Par conséquent, l'opérateur doit également être présent pendant le mesurage du temps
de réverbération avec la RSS. La position de l'opérateur doit être située approximativement à
la même position utilisée pour le mesurage avec l'échantillon d'essai.
4.3 Méthode comparative
Addition:
Si le bruit émis par la source comporte des sons purs audibles, l'écart-type estimé des niveaux
de pression acoustique mesurés dans la salle d'essai à parois dures ou dans la salle
réverbérante spéciale peut augmenter. Dans de tels cas, des positions de microphones ou des
positions de sources supplémentaires peuvent être nécessaires, comme cela est spécifié dans
l'ISO 3743-1 ou l'ISO 3743-2.
Si un opérateur est nécessaire, il est considéré comme faisant partie de l'environnement
d'essai. Par conséquent, l'opérate
...

IEC 60704-2-20 ®
Edition 1.0 2026-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances - Test code for the determination
of airborne acoustical noise -
Part 2-20: Particular requirements for wet hard floor cleaning appliances

Appareils électrodomestiques et analogues - Code d’essai pour la détermination
du bruit aérien -
Partie 2-20: Exigences particulières pour les appareils de nettoyage des sols
durs et mouillés
ICS 17.140.20, 97.080 ISBN 978-2-8327-1062-3

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CONTENTS
FOREWORD . 2
INTRODUCTION . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Measurement methods and acoustical environments . 6
4.2 Direct method . 6
4.3 Comparison method . 6
4.4 Acoustical environment . 6
4.5 Measurement uncertainties . 7
5 Instrumentation. 7
5.1 Instrumentation for measuring acoustical data . 7
6 Operation and location of appliances under test . 8
6.1 Equipping and pre-conditioning of appliances . 8
6.2 Supply of electric energy and of water or gas . 10
6.4 Loading and operating of appliances during tests . 10
6.5 Location and mounting of appliances . 11
7 Measurement of sound pressure levels . 14
7.4 Measurements . 14
9 Information to be recorded . 14
10 Information to be reported . 14
10.3 Test conditions for the appliance. 14
Annex A (normative) Standard test table . 15
Annex B (normative) Test enclosure . 16

Figure 101 – Appliance with cleaning head connected directly . 12
Figure 102 – Appliance with the cleaning head connected by hose and connecting tube . 13

Table 1 – Standard deviations of sound power levels . 7
Table 2 – Standard deviations for declaration and verification . 7

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
Household and similar electrical appliances -
Test code for the determination of airborne acoustical noise -
Part 2-20: Particular requirements for wet hard floor cleaning appliances

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as "IEC Publication(s)"). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC 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) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
may be required to implement this document. However, implementers are cautioned that this may not represent
the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC
shall not be held responsible for identifying any or all such patent rights.
IEC 60704-2-20 has been prepared by subcommittee 59F: Surface cleaning appliances, of IEC
technical committee 59: Performance of household and similar electrical appliances. It is an
International Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
59F/547/FDIS 59F/556/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
This document is intended to be used in conjunction with IEC 60704-1:2021, Household and
similar electrical appliances - Test code for the determination of airborne acoustical noise –
Part 1: General requirements.
The relevant text of IEC 60704‑1:2021 as amended by this document establishes the test code
for wet hard floor cleaners.
This document supplements or modifies the corresponding clauses in IEC 60704-1:2021. When
a particular subclause of IEC 60704-1:2021 is not mentioned in this document, 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
IEC 60704-1:2021 should be adapted accordingly.
Subclauses, tables, and figures that are additional to those in Part 1 are numbered starting from
101. 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.
In this standard, the following print types are used:
– terms defined in Clause 3: bold type.
A list of all 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 document 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.
INTRODUCTION
The measuring conditions specified in this document 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 wet hard floor cleaners.
It is recommended to consider the determination of noise levels as part of a comprehensive
testing procedure covering many aspects of properties and performance of household wet hard
floor cleaners.
NOTE As stated in the introduction to IEC 60704-1, this test code is concerned with airborne noise only.

1 Scope
Addition:
This document specifies the determination of airborne acoustical noise of mains operated and
cordless wet hard floor cleaning appliances for household or similar use. In the case of
appliances with combined functionality, this document only addresses the wet cleaning
functionality.
This document does not apply to wet hard floor cleaning appliances for industrial or professional
purposes and robotic wet hard floor cleaning appliances.
NOTE 101 This document is not intended for cleaning appliances according to IEC 60335-2-79, IEC 60704-2-1,
IEC 60704-2-17.
This document describes the determination of the noise emission of wet hard floor cleaners
under normal operating conditions on hard floor in accordance with 4.6 of
IEC/ASTM 62885-6:2023.
NOTE 102 For determining and verifying noise emission values declared in product specifications, see
IEC 60704-3.
2 Normative references
Addition:
IEC/ASTM 62885-6:2023, Surface cleaning appliances - Part 6: Wet hard floor cleaning
appliances for household and similar use - Methods for measuring the performance
3 Terms and definitions
Addition:
3.101
wet hard floor cleaner
electrically operated appliance that removes wet or dry stains and soils (e.g. beverage and food
stains, floor grime, etc.) from a hard floor surface to be cleaned by use of water alone, a
detergent solution mix, or use of steam, and can employ an air flow created by a vacuum
developed within the unit, the removed material being separated in the appliance and the
cleaned suction air being returned to the ambient air
[SOURCE: IEC/ASTM 62885-6:2023, 3.1]
3.102
cordless wet hard floor cleaner
wet hard floor cleaner that is not mains-operated
Note 1 to entry: The term "cordless" is equivalent to "battery-operated" throughout the document.
[SOURCE: IEC/ASTM 62885-6:2023, 3.2]
3.103
steam cleaner
wet hard floor cleaner that uses steam, and generally employs a soft absorbent pad to transfer
hot moisture to the floor surface and to absorb and remove the stains and soils
[SOURCE: IEC/ASTM 62885-6:2023, 3.3]
3.104
cleaning head
plain nozzle, pad, or brush attached to a wet hard floor cleaner that is applied to a surface to
be cleaned
[SOURCE: IEC/ASTM 62885-6:2023, 3.4]
3.105
active nozzle
cleaning head provided with a driven agitation device to assist stain or soil removal
[SOURCE: IEC/ASTM 62885-6:2023, 3.5]
3.106
standard hard floor
part of the floor on which the wet hard floor cleaner and its cleaning head is placed for the
measurement
4 Measurement methods and acoustical environments
4.2 Direct method
Addition:
If audible discrete tones 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 can be necessary, as
specified in ISO 3743-2.
If an operator is necessary, it is considered as part of the test environment. Therefore, the
operator shall be present also during the reverberation time measurement with the RSS. The
position of the operator shall be approximately at the same position as in the measurement with
the test sample.
4.3 Comparison method
Addition:
If audible discrete tones 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 can be necessary, as specified in ISO 3743-1 or ISO 3743-2.
If an operator is necessary, it is considered as part of the test environment. Therefore, the
operator shall be present also during the comparison measurement with the RSS. The position
of the operator shall be approximately at the same position as in the measurement with the test
sample.
4.4 Acoustical environment
4.4.1 General requirements and criterion for adequacy of the test environment
Addition:
The methods specified in ISO 3743-1, ISO 3743-2 and ISO 3744 can be used for measuring
noise emitted by wet hard floor cleaners.
4.5 Measurement uncertainties
4.5.2 Standard deviations on repeatability and reproducibility and standard deviations
related to declaration and verification
Replacement:
For wet hard floor cleaners the estimated values of standard deviations of sound power levels
determined in accordance with this document are provided in Table 1.
Table 1 – Standard deviations of sound power levels
Standard deviation
(dB)
σ (repeatability) σ (reproducibility)
r R
0,5 1,0
NOTE The values are derived from the results of a round robin test (RRT) conducted in 2025 with 6 different wet
hard floor cleaners in 10 participating laboratories.

For the purpose of determining and verifying declared noise emission values for wet hard floor
cleaners, in accordance with IEC 60704-3, the following values provided in Table 2 apply:
Table 2 – Standard deviations for declaration and verification
Standard deviation
(dB)
σ (production) σ (total) σ (reference)
P t M
1,0 to 1,7 1,3 to 2,0 2,0
NOTE 101 The values of standard deviations in Table 2 are not verified and under further consideration.
5 Instrumentation
5.1 Instrumentation for measuring acoustical data
Addition:
The use of windscreens is recommended. If necessary, the observed sound pressure level shall
be corrected for changes in the microphone sensitivity, in accordance with the instructions
accompanying the instrumentation.
6 Operation and location of appliances under test
6.1 Equipping and pre-conditioning of appliances
6.1.1
Replacement:
6.1.1.101 General
The tube grip of cleaners with suction hose or the handle of other cleaners shall be held at a
height of (800 ± 50) mm above the test surface. Any telescopic suction tubes or sticks shall be
extended to maximum length. For cleaning heads without pivoting connectors, it shall be
ensured that the bottom of the cleaning head be made parallel with the test surface by adjusting
the handle height within the tolerances. If this is not possible, the length of a telescopic tube or
stick can be adjusted. Any adjustment shall be reported.
For declaration and compliance purposes, related tests conducted on a hard floor surface shall
be conducted with the same wet hard floor cleaner setting configurations such as power,
cleaning head and cleaning head setting.
The wet hard floor cleaner shall be used and adjusted in accordance with the manufacturer's
instructions for normal operation for the test to be carried out. Height adjustment controls (if
any) for the cleaning head shall be set as appropriate and the position noted. Any safety-
related device shall be allowed to operate.
For a wet hard floor cleaner having more than one cleaning head, the cleaning head
recommended for performance measurement by the manufacturer in the user instructions shall
be used for noise measurements. If no instructions are provided, the wet hard floor cleaner
shall be tested with the cleaning head producing the highest noise level. If the appliance
includes an additional powered nozzle for cleaning hard floors, measurements shall be carried
out for both cleaning heads. Noise measurements shall be recorded for each cleaning head
used.
The cleaning head used for each test shall be reported.
If the cleaning head has more than one setting, the setting recommended by the manufacturer
in the user manual for cleaning tasks corresponding with the test to be carried out shall be
used. If no instructions are provided in the user manual, the cleaning head shall be tested in
its default delivery setting. The setting used for each test shall be reported. Any electrical
controls shall be set for maximum continuous operation and air flow. Unless the manufacturer's
instruction states otherwise, any manually operated air by-pass openings for reduction of the
suction power shall be closed, and if open, it shall be reported. For fully automatic sensor-
controlled appliances, all relevant sensors shall be triggered to run the maximum possible air
flow and movement for this test.
6.1.1.102 Preparations specific to steam cleaners
Follow the manufacturer's specific instructions to prepare the steam cleaner for use. Install a
clean pad on the cleaning head which has been washed and thoroughly dried in accordance
with the manufacturer's instructions. This step is necessary to ensure no foreign substances on
a new or used pad will affect the test results. Fill the product with tap water (unless otherwise
stipulated by the manufacturer). When the steam cleaner is ready for operation (after the
heating-up phase), produce steam for 15 s to remove any air or condensed water, or both, from
the steam conduits in the appliance. To ensure the pad is properly moistened, place the
cleaning head on a large, clean dry floor surface outside of the measurement area and apply
steam while executing double strokes for a period of 2 min at a stroke speed of approximately
0,2 m/s. Execute only two double strokes over the same dry path of the floor surface, then
diagonally move the cleaning head to an adjacent dry area of the floor and repeat double
strokes. Continue this process until 2 min has elapsed. Immediately place the steam cleaner
to the measurement area and start the measurement within 30 s.
The preparation specific to one-tank boiler steam cleaners (i.e. non-refillable appliances while
operating), the boiler is to be filled up to three-quarters of the manufacturer's recommended
capacity with tap water (unless otherwise stipulated by the manufacturer).
6.1.1.103 Preparations for other wet hard floor cleaners
Follow the manufacturer's instructions for setup and detergent mix (if employed) for preparing
the product for floor cleaning use. Tap water shall be used for all detergent mixes. If a cleaning
pad is specified to be used, a clean pad shall be installed on the cleaning head which has been
washed and thoroughly dried in accordance with the manufacturer's instructions. For an
appliance employing a brush roll for surface cleaning, the manufacturer's instructions to
clean/wash and dry the brush roll shall be followed. This step is necessary to ensure no foreign
substances on a new or used pad or brush roll will affect test results. A clean pad or brush roll
is required for each test. To ensure the pad or brush roller is properly moistened, place the
cleaning head on a large, clean dry floor surface outside of the measurement area and apply
cleaning liquid while executing double strokes for a period of 2 min at a stroke speed of
approximately 0,2 m/s. Execute only two double strokes over the same dry path of the floor
surface, then diagonally move the cleaning head to an adjacent dry area of the floor and repeat
double strokes. Continue this process until 2 min has elapsed. Immediately place the wet hard
floor cleaner to the measurement area and start the measurement within 30 s.
The soil collection receptacle and any additional filters removable without the aid of tools shall,
prior to each measurement, be cleaned in accordance with the manufacturer's instructions until
its mass is within 1 % or 2 g of its original mass, whichever is the lower.
6.1.3
Replacement:
Prior to the first test on a new mains-operated wet hard floor cleaner, the appliance shall be
kept operating for at least 30 min while dispensing cleaning liquid, steam, etc., to ensure
adequate running-in. If the appliance employs a pad, the pad shall be removed. If the appliance
employs a vacuum, the run-in time shall be 2 h, and the appliance shall be operated with
unrestricted air flow during the run-in period. If the appliance employs an active nozzle, the
agitation device shall be running but not be in contact with the floor.
Prior to the first test (and following preparation in line with the manufacturer's instructions) on
a new cordless wet hard floor cleaner, it shall be fully charged in accordance with the
manufacturer's instructions and then kept operating in the same setting and same operating
mode as described for mains-operated wet hard floor cleaners until fully discharged. This step
shall be repeated once more. For active cleaning head during discharge, the agitation device
shall be running but be not in contact with the floor.
Prior to conducting any series of tests, the age, condition, and history of the product shall be
recorded.
6.1.4
Replacement:
Immediately before each series of noise measurements, the wet hard floor cleaner, is operated
for stabilising as described in 6.1.1.
6.2 Supply of electric energy and of water or gas
6.2.2
Addition:
Measurements on rechargeable wet hard floor cleaners start with fully charged batteries and
disconnected from the external power source. For tests where more than one repeat is
necessary, testing shall be carried out on one full charge. Results at different states of battery
charge can vary. However, if the device becomes fully discharged during a repeat, that repeat
is annulled, and the product is fully charged.
If the manufacturer provides no instructions on determination of fully charged battery, a
charging time of 24 h shall be used.
The cordless wet hard floor cleaner shall be tested between 30 min and 12 h after fully
charged.
Make a note in the report if it is not possible to test owing to a short runtime.
6.4 Loading and operating of appliances during tests
6.4.2
Replacement:
Wet hard floor cleaners shall be operated on standard hard floor, depending on the function
specified by the manufacturer.
Before starting the measurement procedure, ensure that the cleaning head and cleaning head
setting are adjusted correctly in accordance with the manufacturer's instructions for cleaning
hard floors.
With the appliance switched off, lift the cleaning head off the floor, reposition the cleaning
head approximately 30 cm behind the measurement position and push along in a forward
direction into the measurement position, taking care that no vertical force is exerted. Switch on
the appliance.
If the appliance is delivered with an ordinary hard floor nozzle and in addition with an active
nozzle for hard floors, measurements shall be carried out for both cleaning heads.
6.5 Location and mounting of appliances
6.5.2
Replacement:
The standard hard floor is specified as follows:
– sound absorption coefficient shall be lower than 0,1; and
.
– areal density is at least 50 kg/m
The wet hard floor cleaner is located on the standard hard floor placed directly without any
resilient means
– either on the floor of the hard-walled test room or the special reverberation test room with a
minimum distance of 1 m between any surface (including protruding parts) of the appliance
and the nearest wall, or
– on the reflecting plane of the free-field environment, taking into account the shape and the
size of the specified measurement surface.
Generally, the floor in a hard-walled test room, a special reverberation test room or in a semi-
anechoic test room fulfils the requirements for a standard hard floor.
Scratches and other irregularities of the surface roughness shall be below 0,5 mm to prevent
turbulence noise generated by these irregularities.
If the requirements for a standard hard floor are not met, at least one plate made of marble or
similar natural stone with a polished surface shall be used. The size of the plate shall be at
least 0,5 m × 1,0 m; thickness shall be at least 0,02 m. Additional noise production between the
plates and between plates and the floor shall be avoided.
To avoid additional noise production, a resilient underlay with a thickness of 25 mm, mechanical
loss factor 0,25 and a dynamic E-modulus less than 0,2 N/mm shall be used. The foam Getzner
Sylomer® SR11 fulfils these requirements.
The vertical projection of the shape of the appliance under test and its cleaning head, shall be
at the centre of the test area (see Figure 101 and Figure 102).
If the cleaning head is connected by a hose and connecting tube(s) to the appliance, the
cleaning head is placed close to the appliance on the floor so that the projection of the axis of
longitudinal travelling of the cleaning head and that of the longitudinal axis of the appliance
are parallel, the projections of the appropriate transverse axis coincide and the clearance
between the projection of the appliance and the projection of the cleaning head is (2 ± 1) cm.
The hose and connecting tube(s) or the handles of hand-supported and upright wet hard floor
cleaners are resiliently suspended or supported in normal position of use (middle of the handles
at (800 ± 50) mm above the floor, if possible), the cleaning head being in full contact with the
floor.
If necessary, the cleaning head is resiliently fastened to prevent self-propulsion.
___________
Getzner Sylomer® SR11 is the trade name of a product supplied by company Getzner. SR11 might be
commercially available by other suppliers after the date of publication of this document. This information is given
for the convenience of users of this document and does not constitute an endorsement by IEC of this product
named. Equivalent products can be used if they can be shown to lead to the same result.
Dimensions in millimetres
Key
1 appliance under test
2 cleaning head of the appliance
3 handle of the appliance
hf hard floor, position of marble plate (if necessary)
l length of the horizontal projection of the appliance
P measurement position
t
Figure 101 – Appliance with cleaning head connected directly
Dimensions in millimetres
Key
1 appliance under test
2 cleaning head of the appliance
3 handle of the appliance
4 hose
5 connection tube
hf hard floor, position of marble plate (if necessary)
l length of the appliance
P measurement position
t
w depth of the cleaning head
Figure 102 – Appliance with the cleaning head connected by hose and connecting tube
6.5.3 to 6.5.6 Not applicable.
7 Measurement of sound pressure levels
7.1.2 to 7.1.4 Not applicable.
7.1.6 and 7.1.7 Not applicable.
7.4 Measurements
7.4.1
Addition:
The A-weighted sound pressure level of a wet hard floor cleaner shall be time-averaged during
at least 30 s.
Make a note in the report if it is not possible to test owing to a short runtime of a cordless wet
hard floor cleaner.
9 Information to be recorded
9.12.5
Not applicable.
10 Information to be reported
10.3 Test conditions for the appliance
10.3.1
Addition:
The cleaning head used for each test shall be reported.
10.3.9
Addition:
The type of the hard floor is to be reported.
10.3.10
Addition:
The cleaning head settings and the state of openings for reduction of suction power shall be
reported.
10.4
10.4.10
Not applicable.
Annex A
(normative)
Standard test table
Not applicable.
Annex B
(normative)
Test enclosure
Not applicable.
___________
SOMMAIRE
AVANT-PROPOS . 2
INTRODUCTION . 4
1 Domaine d'application . 5
2 Références normatives . 5
3 Termes et définitions . 5
4 Méthodes de mesure et environnements acoustiques . 6
4.2 Méthode directe . 6
4.3 Méthode comparative . 6
4.4 Environnement acoustique . 7
4.5 Incertitudes de mesure . 7
5 Appareillage . 7
5.1 Appareillage pour la mesure des données acoustiques . 7
6 Fonctionnement et emplacement des appareils en essai . 8
6.1 Équipement et conditionnement préalable des appareils . 8
6.2 Alimentation en énergie électrique et en eau ou gaz . 10
6.4 Charge et fonctionnement des appareils lors des essais . 11
6.5 Emplacement et montage des appareils . 11
7 Mesure des niveaux de pression acoustique . 15
7.4 Mesures . 15
9 Informations à relever . 15
10 Informations à consigner . 15
10.3 Conditions d'essai de l'appareil . 15
Annexe A (normative) Table d'essai normalisée . 16
Annexe B (normative) Enceinte d'essai . 17

Figure 101 – Appareil avec tête de nettoyage reliée directement . 13
Figure 102 – Appareil avec tête de nettoyage reliée par un tuyau et un tube de
raccordement . 14

Tableau 1 – Écarts-types des niveaux de puissance acoustique . 7
Tableau 2 – Écarts-types pour la déclaration et la vérification . 7

COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
____________
Appareils électrodomestiques et analogues -
Code d'essai pour la détermination du bruit aérien -
Partie 2-20: Exigences particulières pour les appareils
de nettoyage des sols durs et mouillés

AVANT-PROPOS
1) La Commission Électrotechnique 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. À 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
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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.
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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,
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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'IEC attire l'attention sur le fait que la mise en application du présent document peut entraîner l'utilisation d'un
ou de plusieurs brevets. L'IEC ne prend pas position quant à la preuve, à la validité et à l'applicabilité de tout
droit de brevet revendiqué à cet égard. À la date de publication du présent document, l'IEC n'avait pas reçu
notification qu'un ou plusieurs brevets pouvaient être nécessaires à sa mise en application. Toutefois, il y a lieu
d'avertir les responsables de la mise en application du présent document que des informations plus récentes
sont susceptibles de figurer dans la base de données de brevets, disponible à l'adresse https://patents.iec.ch.
L'IEC ne saurait être tenue pour responsable de ne pas avoir identifié de tels droits de brevets.
L'IEC 60704-2-20 a été établie par le sous-comité 59F: Appareils de nettoyage des sols, du
comité d'étude 59 de l'IEC: Aptitude à la fonction des appareils électrodomestiques. Il s'agit
d'une Norme internationale.
IEC 607
...