Household and similar use electrical hair care appliances - Methods for measuring the performance

IEC 61855:2022 applies to electrical appliances for household and similar use for drying and styling hair (including their accessories).
This document defines the main performance characteristics that are of interest to the user and specifies methods of measuring these characteristics.
Appliances to which this document applies include:
– Hair dryers;
– Hair curlers;
– Hair straighteners.
This document does not specify the requirements for performance.
This document does not deal with safety requirements (IEC 60335-2-23).
This document does not apply to electric hair clippers or trimmers.
This second edition cancels and replaces the first edition published in 2003. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) the definitions of hair dryers, hair curlers and hair straighteners are updated;
b) the measurement of temperature profile of the outlet air of hair dryers is added;
c) the measurement of temperature profile of the whole work area of hair curlers is added;
d) the measurement of temperature profile of the heating plate of hair straighteners is added;
e) the measurement method for air flow of hair dryers is introduced;
f) the measurement method for anion emission concentration of anion hair dryers is introduced;
g) the measurement method for tension of hair straighteners is introduced;
h) the service life test for hair dryers, hair curlers and hair straighteners is introduced.

Appareils électriques destinés aux soins des cheveux pour usages domestiques et analogues - Méthodes de mesure de l'aptitude à la fonction

L'IEC 61855:2022 s'applique aux appareils électriques pour usages domestiques et analogues destinés au séchage et au coiffage des cheveux (y compris leurs accessoires).
Le présent document définit les caractéristiques de performance principales qui sont pertinentes pour l'utilisateur et spécifie les méthodes de mesure de ces caractéristiques.
Le présent document couvre les appareils suivants:
– sèche-cheveux;
– fers à boucler;
– fers à lisser.
Le présent document ne spécifie pas les exigences pour l'aptitude à la fonction de ces appareils.
Le présent document ne traite pas des exigences de sécurité (IEC 60335-2-23).
Le présent document ne s'applique pas aux tondeuses à barbe ou à cheveux électriques.
Pour la méthode de mesure de l'aptitude à la fonction des tondeuses pour usages domestiques, consulter l'IEC 62863.
Cette deuxième édition annule et remplace la première édition parue en 2003. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) les définitions des sèche-cheveux, des fers à boucler et des fers à lisser ont été mises à jour;
b) le mesurage du profil de température de l'air de sortie des sèche-cheveux a été ajouté;
c) le mesurage du profil de température de la surface de travail totale des fers à boucler a été ajouté;
d) le mesurage du profil de température de la plaque chauffante des fers à lisser a été ajouté;
e) la méthode de mesure du débit d'air des sèche-cheveux a été ajoutée;
f) la méthode de mesure de la concentration en anions émise par les sèche-cheveux à anions a été ajoutée;
g) la méthode de mesure de la tension des fers à lisser a été ajoutée;
h) l'essai de durée en service des sèche-cheveux, des fers à boucler et des fers à lisser a été ajouté.

General Information

Status
Published
Publication Date
11-Aug-2022
Current Stage
PPUB - Publication issued
Completion Date
12-Aug-2022
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IEC 61855
Edition 2.0 2022-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Household and similar use electrical hair care appliances – Methods for
measuring the performance
Appareils électriques destinés aux soins des cheveux pour usages domestiques
et analogues – Méthodes de mesure de l'aptitude à la fonction
IEC 61855:2022-08(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 61855
Edition 2.0 2022-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Household and similar use electrical hair care appliances – Methods for
measuring the performance
Appareils électriques destinés aux soins des cheveux pour usages domestiques
et analogues – Méthodes de mesure de l'aptitude à la fonction
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 97.170 ISBN 978-2-8322-4074-8

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 61855:2022 © IEC 2022
CONTENTS

FOREWORD ........................................................................................................................... 4

1 Scope .............................................................................................................................. 6

2 Normative references ...................................................................................................... 6

3 Terms and definitions ...................................................................................................... 6

4 List of measurements and tests ....................................................................................... 7

4.1 General ................................................................................................................... 7

4.2 General conditions for measurements ..................................................................... 8

4.3 Test environment .................................................................................................... 8

4.4 Limits of voltage variation ....................................................................................... 8

4.5 Test voltage ............................................................................................................ 8

4.6 Test frequency ........................................................................................................ 8

4.7 Test electrical supply system .................................................................................. 8

4.8 Steady conditions ................................................................................................... 8

4.9 Requirements for measurement instruments ........................................................... 9

5 Measurements ................................................................................................................. 9

5.1 Mass of the appliance ............................................................................................. 9

5.2 Length of the flexible cord ....................................................................................... 9

5.3 Heating-up time ...................................................................................................... 9

5.3.1 Hair dryer ........................................................................................................ 9

5.3.2 Hair curler ....................................................................................................... 9

5.3.3 Hair straightener ............................................................................................ 10

5.4 Temperatures ....................................................................................................... 10

5.4.1 General ......................................................................................................... 10

5.4.2 Hair dryer ...................................................................................................... 10

5.4.3 Hairstyling appliances with warm air .............................................................. 11

5.4.4 Hair curler ..................................................................................................... 12

5.4.5 Hair straightener ............................................................................................ 12

5.5 Air flow of the hair dryer ........................................................................................ 12

5.6 Drying rate of the hair dryer .................................................................................. 13

5.6.1 General ......................................................................................................... 13

5.6.2 Test equipment .............................................................................................. 13

5.6.3 Measuring procedure ..................................................................................... 14

5.6.4 Determination of the drying rate ..................................................................... 15

5.7 Measurement of anion concentration of anion hair dryer ....................................... 15

5.8 Measurement of tension of hair straightener ......................................................... 15

5.9 Drop endurance test ............................................................................................. 16

5.10 Service life test ..................................................................................................... 16

5.10.1 Hair dryer ...................................................................................................... 16

5.10.2 Hair curler ..................................................................................................... 16

5.10.3 Hair straightener ............................................................................................ 17

5.11 Attachment of accessories .................................................................................... 17

5.11.1 Reliability....................................................................................................... 17

5.11.2 Ease of handling ............................................................................................ 17

6 Measurement of airborne acoustical noise ..................................................................... 17

7 Features ........................................................................................................................ 17

7.1 Control settings ..................................................................................................... 17

---------------------- Page: 4 ----------------------
IEC 61855:2022 © IEC 2022 – 3 –

7.2 Accessories .......................................................................................................... 17

7.3 Additional features ................................................................................................ 17

8 Instructions for use ........................................................................................................ 18

Annex A (informative) Additional information ........................................................................ 28

A.1 Measurement of the volumising effect of diffusers (volumisers) ............................. 28

A.2 Measurement of hair intake ................................................................................... 28

A.3 Information at the point of sale .............................................................................. 28

A.4 List of accessories supplied .................................................................................. 28

Annex B (informative) Addresses of suppliers ...................................................................... 29

B.1 General ................................................................................................................. 29

B.2 Test cloth for measuring drying rate of the hair dryer ............................................ 29

B.3 Measurement of anion concentration..................................................................... 29

Bibliography .......................................................................................................................... 30

Figure 1 – Temperature measuring device (from UL 859) ...................................................... 19

Figure 2 – Attachment of the thermocouples (from UL859) .................................................... 20

Figure 3 – Distance between the measuring device and the air outlet ................................... 21

Figure 4 – Example of graph of air outlet temperature distribution of hair dryer or

hairstyling appliance with warm air........................................................................................ 22

Figure 5 – Hair curler, position of the measuring points......................................................... 22

Figure 6 – Example of temperature profile of the barrel of the hair curler .............................. 23

Figure 7 – Hair straighter, position of the measuring points ................................................... 23

Figure 8 – Example of temperature profile of the heating plate of the hair straightener ......... 23

Figure 9 – Test set-up for measuring the air flow of the hair dryer ......................................... 24

Figure 10 – Test equipment for measuring the drying rate ..................................................... 25

Figure 11 – Graphical derivation of distance D .................................................................... 26

Figure 12 – Measurement setup of anion emission concentration .......................................... 26

Figure 13 – Test setup for measuring tension ....................................................................... 27

Figure 14 – Example of indication of tension uniformity ......................................................... 27

Table 1 – Requirements for measurement instruments ............................................................ 9

---------------------- Page: 5 ----------------------
– 4 – IEC 61855:2022 © IEC 2022
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR USE ELECTRICAL HAIR CARE APPLIANCES –
METHODS FOR MEASURING THE PERFORMANCE
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,

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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.

IEC 61855 has been prepared by subcommittee 59L: Small household appliances, of IEC

technical committee 59: Performance of household and similar electrical appliances. It is an

International Standard.

This second edition cancels and replaces the first edition published in 2003. This edition

constitutes a technical revision.

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

edition:

a) the definitions of hair dryers, hair curlers and hair straighteners are updated;

b) the measurement of temperature profile of the outlet air of hair dryers is added;

c) the measurement of temperature profile of the whole work area of hair curlers is added;

d) the measurement of temperature profile of the heating plate of hair straighteners is added;

e) the measurement method for air flow of hair dryers is introduced;

f) the measurement method for anion emission concentration of anion hair dryers is

introduced;
---------------------- Page: 6 ----------------------
IEC 61855:2022 © IEC 2022 – 5 –
g) the measurement method for tension of hair straighteners is introduced;

h) the service life test for hair dryers, hair curlers and hair straighteners is introduced.

The text of this International Standard is based on the following documents:
Draft Report on voting
59L/215/FDIS 59L/218/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/standardsdev/publications.
In this document, the following print types are used:
• terms defined in Clause 3: bold type.

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,
• replaced by a revised edition, or
• amended.

IMPORTANT – The "colour inside" logo on the cover page of this document indicates that it

contains colours which are considered to be useful for the correct understanding of its

contents. Users should therefore print this document using a colour printer.
---------------------- Page: 7 ----------------------
– 6 – IEC 61855:2022 © IEC 2022
HOUSEHOLD AND SIMILAR USE ELECTRICAL HAIR CARE APPLIANCES –
METHODS FOR MEASURING THE PERFORMANCE
1 Scope

This document applies to electrical appliances for household and similar use for drying and

styling hair (including their accessories).

This document defines the main performance characteristics that are of interest to the user and

specifies methods of measuring these characteristics.
NOTE 1 Appliances to which this document applies include:
– Hair dryers;
– Hair curlers;
– Hair straighteners.
This document does not specify the requirements for performance.
This document does not deal with safety requirements (IEC 60335-2-23).
This document does not apply to electric hair clippers or trimmers.

NOTE 2 See IEC 62863 for the method of measuring the performance of electric hair clippers or trimmers for

household use.
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 60704-2-9, Household and similar electrical appliances – Test code for the determination

of airborne acoustical noise – Part 2-9: Particular requirements for electrical hair care

appliances

ISO 2267:1986, Surface active agents – Evaluation of certain effects of laundering – Methods

of preparation and use of unsoiled cotton control cloth
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following

addresses:
• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
3.1
hair dryer
appliance that applies electric energy to dry the hair by cool or warm air flow
---------------------- Page: 8 ----------------------
IEC 61855:2022 © IEC 2022 – 7 –
3.1.1
portable hair dryer
hair dryer intended to be moved during normal use
3.1.2
anion hair dryer
hair dryer capable of releasing anion particles in normal use
3.2
hairstyling appliance
electric appliance in which heat is produced for styling the hair
3.2.1
hair curler
hairstyling appliance which is able to curl the hair
3.2.2
hair straightener
hairstyling appliance which is able to straighten the hair
3.3
concentrator
accessory used to concentrate the air flow in one direction
3.4
diffuser
volumiser
accessory for providing a wide distribution of the air flow
3.5
rated voltage
voltage assigned to the appliance by the manufacturer
3.6
rated voltage range
voltage range assigned to the appliance by the manufacturer
3.7
rated frequency
frequency assigned to the appliance by the manufacturer
3.8
rated frequency range
frequency range assigned to the appliance by the manufacturer
4 List of measurements and tests
4.1 General

Depending on the appliance, the following measurements or tests are relevant when assessing

the performance:
– mass, in accordance with 5.1;
– length of the flexible cord, in accordance with 5.2;
– heating-up time, in accordance with 5.3;
– temperatures, in accordance with 5.4;
---------------------- Page: 9 ----------------------
– 8 – IEC 61855:2022 © IEC 2022
– air flow, in accordance with 5.5;
– drying rate, in accordance with 5.6;
– anion concentration of anion hair dryer, in accordance with 5.7;
– tension of hair straightener, in accordance with 5.8;
– drop endurance test, in accordance with 5.9;
– service life test, in accordance with 5.10;
– attachment of accessories, in accordance with 5.11;
– airborne acoustical noise, in accordance with Clause 6;
– features, in accordance with Clause 7;
– instructions for use, in accordance with Clause 8.
NOTE For other items, see Annex A for additional information.
4.2 General conditions for measurements

Unless otherwise specified, the measurements are carried out under the conditions of 4.2 to

4.9.

The measurements are made with controls adjusted to their highest setting and when steady

conditions in accordance with 4.8 are established.

NOTE 1 Due to the influence of environmental conditions, variations in time, origin of test materials and proficiency

of the operator, most of the described test methods will give more reliable results when applied for comparative

testing of a number of appliances at the same time, in the same laboratory, and by the same operator.

4.3 Test environment

The tests are carried out in a substantially draught-free room. The ambient temperature is

maintained at (23 ± 2) °C. The relative humidity is maintained at 50 % ± 5 %.
4.4 Limits of voltage variation

During the test, the variation in the voltage shall not exceed ±1 % of the test voltage.

4.5 Test voltage

Unless otherwise specified, the tests are carried out at a specific voltage within a rated voltage

range (e.g.100 V to 240 V) or at the rated voltage or voltages (e.g. 120 V, or 120 V and 240 V).

4.6 Test frequency

The appliances are tested at the rated frequency or within a rated frequency range (e.g. rated

as 50 Hz and 60 Hz, or 50 Hz to 60 Hz).
4.7 Test electrical supply system

Total harmonic distortion of the test electrical supply system shall be less than 5 %.

4.8 Steady conditions

For hair dryers, steady conditions are considered to be established 10 min after switching on

the appliance.

For other appliances, steady conditions are considered to be established 20 min after switching

on the appliance or when the thermostat has operated four times, if this occurs first.

---------------------- Page: 10 ----------------------
IEC 61855:2022 © IEC 2022 – 9 –
4.9 Requirements for measurement instruments

The requirements for measurement instruments shall be in accordance with Table 1.

Table 1 – Requirements for measurement instruments
Parameter Unit Minimum resolution Instrument accuracy
Temperature °C 0,1 °C ±0,5 K
Mass g 0,1 g ±2 %
Time s 1 s ±1 %
Air flow m/s 0 to 9.99: 0.01 m/s ± 2% on indicated or
10 to 30:0.1 m/s 0.015 m/s, whichever is
bigger
Electrical energy W·h ±1 %
3 3
Anion concentration ±10 %
ion/cm 10 ion/cm
Tension N 0,01 N ±0,5 %
The thermocouples shall be type K, Ni-CrSi.
5 Measurements
5.1 Mass of the appliance

The mass of the appliance is determined including the flexible cord, but excluding any

accessory.
The mass of each accessory is measured separately.
The results are expressed in kg to the nearest 0,01 kg.
5.2 Length of the flexible cord

The length of the flexible cord is measured between the point where the cord or cord guard

enters the appliance and the cord entry point of the plug. Coiled cords are stretched with a pull

of 10 N before measurement.
The length is expressed in m rounded down to the nearest 0,05 m.
5.3 Heating-up time
5.3.1 Hair dryer
Not applicable.
5.3.2 Hair curler

The heating-up time of the hair curler is the time taken for the temperature rise of the barrel to

reach 100 K, measured in accordance with 5.4.4.1. The time is expressed in s.

NOTE This temperature rise implies a temperature of approximately 120 °C, which is considered to be the minimum

temperature necessary for curling dry hair.
---------------------- Page: 11 ----------------------
– 10 – IEC 61855:2022 © IEC 2022
5.3.3 Hair straightener

The heating-up time of the hair straightener is the time taken for the temperature rise of the

heating plate to reach 100 K, measured in accordance with 5.4.5.1. The time is expressed in s.

NOTE This temperature rise implies a temperature of approximately 120 °C, which is considered to be the minimum

temperature necessary for straightening dry hair.
5.4 Temperatures
5.4.1 General

The test methods, which are considered to be reproducible, are only applicable for comparative

testing.
5.4.2 Hair dryer
5.4.2.1 Outlet air temperature of hair dryers
The measuring device is shown in Figure 1.

The thermocouple grid assembly shall consist of two pieces of 1,6 mm thick glass epoxy board

with the configuration and dimensions shown in Figure 1. The two boards are to be separated

by 3,2 mm by one 134 mm × 6,4 mm × 3,2 mm wood spacer at the top and bottom edges. Each

spacer is to be secured by four M3 × 12mm countersunk flat head machine screws, so that each

screw’s head is the same level with the front plate. Each end
...

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