Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 2-1: Particular requirements for dry vacuum cleaners

IEC 60704-2-1:2020 is available as IEC 60704-2-1:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 60704-2-1:2020 is applicable for the determination of airborne acoustical noise of mains operated and cordless dry vacuum cleaners for household use or under conditions similar to those in households. This part of IEC 60704 does not apply to vacuum cleaners for industrial or professional purposes. This edition includes the following significant technical changes with respect to the previous edition:
a) product scope is extended to cordless and similar vacuum cleaners;
b) definitions of "cleaning head", "active nozzle" and "standard Wilton test carpet" have been added;
c) specification of standard Wilton test carpet has been removed; reference is made to IEC/TS 62885-1;
d) specific requirements on equipping and pre-conditioning have been added;
e) topic ageing of test carpet is addressed.
This Part 2-1 supplements or modifies the corresponding clauses in IEC 60704-1:2010.

Appareils électrodomestiques et analogues - Code d'essai pour la détermination du bruit aérien - Partie 2-1: Exigences particulières pour les aspirateurs à sec

IEC 60704-2-1:2020 est disponible sous forme de IEC 60704-2-1:2020 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.
L'IEC 60704-2-1:2020 s'applique pour la détermination du bruit aérien des aspirateurs à sec qui fonctionnent sur secteur et des aspirateurs à sec sans cordon destinés à un usage domestique ou dans des conditions analogues à celles des foyers domestiques. La présente partie de l'IEC 60704 ne s'applique pas aux aspirateurs destinés à des usages industriels ou professionnels. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) le domaine d'application des produits a été étendu aux aspirateurs sans cordon et appareils analogues;
b) les définitions des termes "tête de nettoyage", "suceur actif" et "tapis d'essai normalisé Wilton" ont été ajoutées;
c) la spécification du tapis d'essai normalisé Wilton a été supprimée; il est fait référence à l'IEC TS 62885-1;
d) des exigences spécifiques pour l'équipement et le conditionnement préalable ont été ajoutées;
e) le sujet du vieillissement du tapis d'essai est traité.
La présente Partie 2-1 complète ou modifie les articles correspondants de l'IEC 60704-1:2010.

General Information

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Published
Publication Date
29-Oct-2020
Current Stage
PPUB - Publication issued
Completion Date
30-Oct-2020
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IEC 60704-2-1
Edition 4.0 2020-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Test code for the determination
of airborne acoustical noise –
Part 2-1: Particular requirements for dry vacuum cleaners
Appareils électrodomestiques et analogues – Code d'essai pour la détermination
du bruit aérien –
Partie 2-1: Exigences particulières pour les aspirateurs à sec
IEC 60704-2-1:2020-10(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 60704-2-1
Edition 4.0 2020-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Test code for the determination
of airborne acoustical noise –
Part 2-1: Particular requirements for dry vacuum cleaners
Appareils électrodomestiques et analogues – Code d'essai pour la détermination
du bruit aérien –
Partie 2-1: Exigences particulières pour les aspirateurs à sec
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.140.20; 97.080 ISBN 978-2-8322-8724-8

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 60704-2-1:2020 © IEC 2020
CONTENTS

FOREWORD ........................................................................................................................... 3

INTRODUCTION ..................................................................................................................... 5

1 Scope and object ............................................................................................................. 6

1.1 Scope ..................................................................................................................... 6

1.1.1 General ........................................................................................................... 6

1.1.2 Types of noise ................................................................................................. 6

1.1.3 Size of the source ............................................................................................ 6

1.2 Object ..................................................................................................................... 6

1.3 Measurement uncertainty ........................................................................................ 7

2 Normative references ...................................................................................................... 8

3 Terms and definitions ...................................................................................................... 8

4 Measurement methods and acoustical environments ....................................................... 9

5 Instrumentation ................................................................................................................ 9

5.1 Instrumentation for measuring acoustical data ........................................................ 9

6 Operation and location of appliances under test .............................................................. 9

6.1 Equipping and pre-conditioning of appliances ......................................................... 9

6.2 Supply of electric energy and of water or gas ........................................................ 11

7 Measurement of sound pressure levels .......................................................................... 14

8 Calculation of sound pressure and sound power levels .................................................. 14

9 Information to be recorded ............................................................................................. 14

10 Information to be reported ............................................................................................. 14

Annexes ............................................................................................................................... 18

Annex A (normative) Standard test table .............................................................................. 18

Bibliography .......................................................................................................................... 19

Figure 101 – Appliance with cleaning head connected directly .............................................. 16

Figure 102 – Appliance with the cleaning head connected by hose and connecting tube ...... 17

Table 101 – Standard deviations of sound power levels determined on carpets ...................... 7

Table 102 – Standard deviations of sound power levels determined on hard floors ................. 7

Table 103 – Standard deviations for declaration and verification for vacuum cleaners

for carpets .............................................................................................................................. 7

Table 104 – Standard deviations for declaration and verification for vacuum cleaners

for hard floors ......................................................................................................................... 8

---------------------- Page: 4 ----------------------
IEC 60704-2-1:2020 © IEC 2020 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
TEST CODE FOR THE DETERMINATION
OF AIRBORNE ACOUSTICAL NOISE –
Part 2-1: Particular requirements for dry vacuum cleaners
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

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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

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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.

International Standard IEC 60704-2-1 has been prepared by subcommittee 59F: Surface

cleaning appliances, of IEC technical committee 59: Performance of household and similar

electrical appliances.

This fourth edition cancels and replaces the third edition published in 2014. This edition

constitutes a technical revision.

This edition includes the following significant technical changes with respect to the previous

edition:
a) product scope is extended to cordless and similar vacuum cleaners;

b) definitions of "cleaning head", "active nozzle" and "standard Wilton test carpet" have been

added;

c) specification of standard Wilton test carpet has been removed; reference is made to

IEC TS 62885-1;
---------------------- Page: 5 ----------------------
– 4 – IEC 60704-2-1:2020 © IEC 2020
d) specific requirements on equipping and pre-conditioning have been added;
e) topic ageing of test carpet is addressed.
The text of this International Standard is based on the following documents:
FDIS Report on voting
59F/399/FDIS 59F/408/RVD

Full information on the voting for the approval of this International Standard can be found in the

report on voting indicated in the above table.

This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

This Part 2-1 is intended to be used in conjunction with IEC 60704-1:2010, 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 60704-1:2010.

The relevant text of Part 1 as amended by this document establishes the test code for vacuum

cleaners.

This Part 2-1 supplements or modifies the corresponding clauses in IEC 60704-1:2010. When

a particular subclause of Part 1 is not mentioned in this Part 2-1, 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 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.

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 document will remain unchanged until the

stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to

the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
---------------------- Page: 6 ----------------------
IEC 60704-2-1:2020 © IEC 2020 – 5 –
INTRODUCTION

The measuring conditions specified in this part of IEC 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 vacuum 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 vacuum

cleaners.

NOTE As stated in the introduction to IEC 60704-1, this test code is concerned with airborne noise only.

---------------------- Page: 7 ----------------------
– 6 – IEC 60704-2-1:2020 © IEC 2020
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
TEST CODE FOR THE DETERMINATION
OF AIRBORNE ACOUSTICAL NOISE –
Part 2-1: Particular requirements for dry vacuum cleaners
1 Scope and object
This clause of Part 1 is applicable except as follows:
1.1 Scope
1.1.1 General
Replacement:

This part of IEC 60704 is applicable for the determination of airborne acoustical noise of mains

operated and cordless dry vacuum cleaners for household use or under conditions similar to

those in households.

This part of IEC 60704 does not apply to vacuum cleaners for industrial or professional

purposes.

NOTE Particular requirements for dry cleaning robots are specified in IEC 60704-2-17.

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 electric vacuum cleaners.
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, the maximum size of the appliance under test should fulfil the

requirements specified in 1.2 of ISO 3743-1:2010 and 1.3 of ISO 3743-2:1994.
1.2 Object
Addition:

This part of IEC 60704 describes the determination of the noise emission of vacuum cleaners

under normal operating conditions on carpet and hard floor in accordance with 4.6 of

IEC 62885-2.

NOTE 101 For determining and verifying noise emission values declared in product specifications, see

IEC 60704-3.
---------------------- Page: 8 ----------------------
IEC 60704-2-1:2020 © IEC 2020 – 7 –
1.3 Measurement uncertainty
Replacement:

For vacuum cleaners designed for cleaning carpets the estimated values of standard deviations

of sound power levels determined in accordance with this part of IEC 60704 are provided in

Table 101.
Table 101 – Standard deviations of sound power levels determined on carpets
Standard deviation (dB)
σ (repeatability) σ (reproducibility)
r R
0,3 0,8

For vacuum cleaners designed for cleaning hard floors the estimated values of standard

deviations of sound power levels determined in accordance with this part of IEC 60704 are

provided in Table 102.
Table 102 – Standard deviations of sound power levels determined on hard floors
Standard deviation (dB)
σ (repeatability) σ (reproducibility)
r R
0,2 0,6

NOTE 101 The values in Table 101 and Table 102 are derived from the results of a round robin test (RRT) conducted

in 2010/2011 with 4 different vacuum cleaners (passive and active) in 8 participating laboratories.

Addition:
1.101 Standard deviation for declaration and verification

For the purpose of determining and verifying declared noise emission values for vacuum

cleaners designed for cleaning carpets, in accordance with IEC 60704-3, the following values

provided in Table 103 apply:
Table 103 – Standard deviations for declaration and verification
for vacuum cleaners for carpets
Standard deviation (dB)
σ (production) σ (total) σ (reference)
P t M
0,5 to 1,0 0,9 to 1,3 1,5

For the purpose of determining and verifying declared noise emission values for vacuum

cleaners designed for cleaning hard floors, in accordance with IEC 60704-3, the following

values provided in Table 104 apply:
---------------------- Page: 9 ----------------------
– 8 – IEC 60704-2-1:2020 © IEC 2020
Table 104 – Standard deviations for declaration and verification
for vacuum cleaners for hard floors
Standard deviation (dB)
σ (production) σ (total) σ (reference)
P t M
0,5 to 1,0 0,8 to 1,2 1,5
2 Normative references
This clause of Part 1 is applicable except as follows:
Addition:

IEC TS 62885-1, Surface cleaning appliances – Part 1: General requirements on test material

and test equipment

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

noise sources using sound pressure – Engineering methods for an essentially free field over a

reflecting plane
3 Terms and definitions
This clause of Part 1 is applicable except as follows:
Addition:
3.101
cleaning head

plain nozzle or brush attached to a connecting tube, or a power nozzle, separate or part of the

cleaner housing, and that part of a dry vacuum cleaner which is applied to a surface to be

cleaned
[SOURCE: IEC 62885-2:2016, 3.3]
3.102
active nozzle
cleaning head provided with a driven agitation device to assist dirt removal

Note 1 to entry: The agitation device can be driven by an incorporated electric motor (motorized nozzle), an

incorporated turbine powered by the air flow (air-turbine nozzle) or an incorporated friction or gear mechanism

actuated by moving the cleaning head over the surface to be cleaned (mechanical nozzle).

[SOURCE: IEC 62885-2:2016, 3.4]
3.103
standard Wilton test carpet

Wilton carpet on which the vacuum cleaner and its cleaning head is placed for the measurement

Note 1 to entry: The specification of the standard Wilton test carpet can be found in IEC TS 62885-1.

---------------------- Page: 10 ----------------------
IEC 60704-2-1:2020 © IEC 2020 – 9 –
3.104
standard hard floor

part of the floor on which the vacuum cleaner and its cleaning head is placed for the

measurement
4 Measurement methods and acoustical environments
This clause of Part 1 is applicable except as follows:
4.2 Direct method
Addition:

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 may

increase. In such cases additional microphone positions or source positions may be necessary,

as specified in ISO 3743-2.
4.3 Comparison method
Addition:

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 may increase. In such cases additional microphone positions or source

positions may be necessary, as specified in ISO 3743-1 or ISO 3743-2.
5 Instrumentation
This clause of Part 1 is applicable except as follows:
5.1 Instrumentation for measuring acoustical data
Addition:

The use of a windscreen 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
This clause of Part 1 is applicable except as follows:
6.1 Equipping and pre-conditioning of appliances
6.1.1
Replacement:

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 nozzles 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 may

be adjusted. Any adjustment shall be reported.
---------------------- Page: 11 ----------------------
– 10 – IEC 60704-2-1:2020 © IEC 2020

For declaration and compliance purposes, related tests conducted on a surface type (carpet or

hard surface with or without crevice) shall be conducted with the same dry vacuum cleaner

setting configurations such as power, cleaning head and cleaning head setting.

Unless otherwise specified, the dry vacuum cleaner setting configurations, such as cleaning

head and cleaning head setting, shall be used and adjusted in accordance with the

manufacturer's instructions for the surface to be cleaned (e.g. carpet or hard floor) for the test

to be carried out.

In the absence of unambiguous instructions within the manufacturer's instructions, the product

shall be tested with settings that are in accordance with any explicitly clear text, symbol or

pictogram that is identifiable on the product.

If, after following the above order of checks, the tester believes the device under test to be in a

configuration that is ambiguous, or that multiple configurations are possible with no way to

clearly determine which is the most suitable for a given task, then the manufacturer shall be

contacted for additional guidance.

If all of the above-mentioned measures to get information regarding the correct setting fail, the

setting for maximum continuous airflow shall be used.

Complete details of the settings used for each cleaning task shall be recorded in the test

documentation.

If the dry vacuum cleaner is designed to be used with disposable dust receptacles, it shall, prior

to each measurement, be equipped with a new dust receptacle of the type recommended or

supplied by the manufacturer of the dry vacuum cleaner.

If the dry vacuum cleaner is provided with a reusable dust receptacle (as the sole original dust

receptacle or as an enclosure for disposable dust receptacles), the dust 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.

Each test of a cordless dry vacuum cleaner is started with a fully charged sample. For tests

where more than one repeat is needed, testing should be carried out on one full charge. This

document does not currently address changing performance throughout the whole run time of

some appliances. 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.

After a full charge, the cordless cleaner shall not be tested until 30 min have elapsed, and

before 48 h have elapsed. The cleaner shall be disconnected from the charger during this

period.

Make a note in the report if it is not possible to test owing to a short runtime.

6.1.3
Replacement:
---------------------- Page: 12 ----------------------
IEC 60704-2-1:2020 © IEC 2020 – 11 –

Prior to the first test on a new mains-operated vacuum cleaner, it shall be kept running with

unrestricted air flow for at least 2 h to ensure adequate running-in. For active nozzles, 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 dry vacuum cleaner, it shall be fully charged in accordance with the

manufacturer’s instructions and then discharged by running in the same setting as for the noise

measurement with unrestricted air flow. The sequence shall be repeated one more time with an

interval of at least two hours after each discharge. For active nozzles during discharge, the

agitation device shall be running but 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
Addition:

If the vacuum cleaner is unused for more than 1 h, then the vacuum cleaner and attachments

to be used shall be kept running for at least 10 min to allow them to stabilise.

For appliances supplied from batteries, this duration for stabilisation is reduced to 1 min.

6.2 Supply of electric energy and of water or gas
6.2.2
Addition:

Rechargeable vacuum cleaners are measured with fully charged batteries and disconnected

from the external power source.
6.4 Loading and operating of appliances during tests
6.4.2
Replacement:

Vacuum cleaners shall be operated either on standard Wilton test carpet or on standard hard

floor, depending on the function specified by the manufacturer. Vacuum cleaners designed for

cleaning both carpets and hard floor shall be operated on a standard Wilton test carpet and on

a standard hard floor.
The dry vacuum cleaner setting co
...

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