SIST EN ISO 24550:2020
(Main)Ergonomics - Accessible design - Indicator lights on consumer products (ISO 24550:2019)
Ergonomics - Accessible design - Indicator lights on consumer products (ISO 24550:2019)
EN-ISO 24550 specifies design requirements and recommendations for indicator lights, mainly LED sourced, on consumer products for use by older people and people with visual disabilities. It does not consider the needs of persons who are blind. Indicator lights include those that inform users visually about the conditions, changes in functional status and settings, and malfunction of products. They convey information by light on/off, time-modulated intensity, blinking, colour, luminance level, and layout. This document addresses household and home appliances. It excludes electronic displays presenting characters and graphics, machinery, and appliances in special use for professional, technical, and industrial applications.
Ergonomie - Zugängliche Gestaltung - Kontrollleuchten an Konsumgütern (ISO 24550:2019)
Dieses Dokument legt Anforderungen und Empfehlungen für die Gestaltung von Kontrollleuchten, zumeist mit LED-Lichtquelle, an Konsumgütern für den Gebrauch durch ältere Menschen und Menschen mit Sehbehinderungen fest. Es berücksichtigt nicht die Bedürfnisse von Menschen, die blind sind.
Kontrollleuchten umfassen Leuchten, die Benutzer optisch über die Zustände, Veränderungen des Funktionsstatus und der Einstellungen sowie Fehlfunktionen von Produkten informieren. Sie vermitteln Informationen durch ihr Aufleuchten oder Erlöschen, zeitliche Modulation ihrer Lichtstärke, Blinken, Farbe, unterschiedliche Leuchtdichten und durch ihre Anordnung.
Dieses Dokument bezieht sich auf Geräte für den Hausgebrauch. Es bezieht sich nicht auf elektronische Anzeigeeinrichtungen zur Darstellung von Zeichen und Graphiken, Maschinen, und Geräte, die speziell in beruflichen, technischen und industriellen Anwendungen verwendet werden.
Ergonomie - Conception accessible - Voyants lumineux sur les produits de consommation (ISO 24550:2019)
Le présent document spécifie des exigences et des recommandations de conception des voyants lumineux, principalement à base de LED, sur les produits de consommation courante destinés à être utilisés par des personnes âgées et des personnes malvoyantes. Il ne prend pas en compte les besoins des personnes non voyantes.
Les voyants lumineux englobent les voyants qui informent visuellement les utilisateurs sur les conditions, les changements d'état fonctionnel et les réglages, ainsi que sur le dysfonctionnement des produits. Ils fournissent des informations par leur état allumé/éteint, par la modulation de leur intensité dans le temps, leur clignotement, leur couleur, leur niveau de luminance et leur configuration.
Le présent document concerne les produits et appareils électroménagers. Il exclut les écrans électroniques affichant des caractères et des graphiques, les machines et les appareils pour usages spéciaux destinés à des applications professionnelles, techniques et industrielles.
Ergonomija - Dostopno načrtovanje - Indikatorji svetil za proizvode (ISO 24550:2019)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 24550:2020
01-maj-2020
Nadomešča:
SIST EN ISO 24500:2011
Ergonomija - Dostopno načrtovanje - Indikatorji svetil za proizvode (ISO
24550:2019)
Ergonomics - Accessible design - Indicator lights on consumer products (ISO
24550:2019)
Ergonomie - Zugängliche Gestaltung - Kontrollleuchten an Konsumgütern (ISO
24550:2019)
Ergonomie - Conception accessible - Voyants lumineux sur les produits de
consommation (ISO 24550:2019)
Ta slovenski standard je istoveten z: EN ISO 24550:2019
ICS:
11.180.15 Pripomočki za gluhe osebe in Aids for deaf and hearing
osebe z okvaro sluha impaired people
13.180 Ergonomija Ergonomics
SIST EN ISO 24550:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 24550:2020
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SIST EN ISO 24550:2020
EN ISO 24550
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2019
EUROPÄISCHE NORM
ICS 11.180.15; 13.180
English Version
Ergonomics - Accessible design - Indicator lights on
consumer products (ISO 24550:2019)
Ergonomie - Conception accessible - Voyants lumineux Ergonomie - Zugängliche Gestaltung - Kontrollleuchten
sur les produits de consommation (ISO 24550:2019) an Konsumgütern (ISO 24550:2019)
This European Standard was approved by CEN on 25 October 2019.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 24550:2019 E
worldwide for CEN national Members.
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SIST EN ISO 24550:2020
EN ISO 24550:2019 (E)
Contents Page
European foreword . 3
2
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SIST EN ISO 24550:2020
EN ISO 24550:2019 (E)
European foreword
This document (EN ISO 24550:2019) has been prepared by Technical Committee ISO/TC 159
"Ergonomics" in collaboration with Technical Committee CEN/TC 122 “Ergonomics” the secretariat of
which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by May 2020, and conflicting national standards shall be
withdrawn at the latest by May 2020.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 24550:2019 has been approved by CEN as EN ISO 24550:2019 without any modification.
3
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SIST EN ISO 24550:2020
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SIST EN ISO 24550:2020
INTERNATIONAL ISO
STANDARD 24550
First edition
2019-10
Ergonomics — Accessible design —
Indicator lights on consumer products
Ergonomie — Conception accessible — Voyants lumineux sur les
produits de consommation courante
Reference number
ISO 24550:2019(E)
©
ISO 2019
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SIST EN ISO 24550:2020
ISO 24550:2019(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2019
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved
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SIST EN ISO 24550:2020
ISO 24550:2019(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Accessibility considerations related to indicator lights . 2
4.1 Modes of lighting condition . 2
4.2 Colour . 3
4.3 Luminance . 3
4.4 Size . 5
4.5 Temporal luminance difference and blinking light frequency . 5
4.6 Location . 6
4.7 Alternative presentation of indicator light information. 6
4.8 Marking of the indicator light meaning . 7
4.9 Other factors . 7
5 Conformance . 7
Bibliography . 8
© ISO 2019 – All rights reserved iii
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SIST EN ISO 24550:2020
ISO 24550:2019(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso .org/
iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 159, Ergonomics, Subcommittee SC 4,
Ergonomics of human-system interaction.
This first edition cancels and replaces ISO 24500:2010.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
iv © ISO 2019 – All rights reserved
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SIST EN ISO 24550:2020
ISO 24550:2019(E)
Introduction
Indicator lights of consumer products provide important information to use products properly.
Although their importance is recognized widely, many difficulties exist in relation to indicator lights
such as insufficient on/off visibility, unclear implications of lighting modes, and discomforting glare are
reported by users, particularly by older persons or persons with visual disabilities. These claims result
from the lack of a relevant standard related to indicator lights design. This document is intended to
provide design requirements and recommendations for adequate brightness, colour, and use of blinking
lights of indicator lights considering the needs of older persons and persons with visual disabilities.
This document adopts the concepts of accessibility given in ISO/IEC Guide 71 and in ISO/TR 22411.
© ISO 2019 – All rights reserved v
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SIST EN ISO 24550:2020
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SIST EN ISO 24550:2020
INTERNATIONAL STANDARD ISO 24550:2019(E)
Ergonomics — Accessible design — Indicator lights on
consumer products
1 Scope
This document specifies design requirements and recommendations for indicator lights, mainly LED
sourced, on consumer products for use by older people and people with visual disabilities. It does not
consider the needs of persons who are blind.
Indicator lights include those that inform users visually about the conditions, changes in functional
status and settings, and malfunction of products. They convey information by light on/off, time-
modulated intensity, blinking, colour, luminance level, and layout.
This document addresses household and home appliances. It excludes electronic displays presenting
characters and graphics, machinery, and appliances in special use for professional, technical, and
industrial applications.
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.
ISO/IEC Guide 71, Guide for addressing accessibility in standards
ISO 17049, Accessible design — Application of braille on signage, equipment and appliances
CIE S 017, ILV: International Lighting Vocabulary
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO/IEC Guide 71 and CIE S 017
and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1
consumer product
product that is intended to be acquired and used by an individual for personal rather than
professional use
[SOURCE: ISO/TS 20282-2:2013, 4.3]
3.2
indicator light
light which is associated with the operation of a product and is indicative of th
...
SLOVENSKI STANDARD
oSIST prEN ISO 24550:2019
01-april-2019
(UJRQRPLMD'RVWRSQRQDþUWRYDQMH,QGLNDWRUMLVYHWLO]DSURL]YRGH ,62',6
Ergonomics - Accessible design - Indicator lights on consumer products (ISO/DIS
24550:2019)
Ergonomie - Zugängliche Gestaltung - Kontrollleuchten an Konsumgütern (ISO/DIS
24550:2019)
Ergonomie - Conception accessible - Voyants lumineux sur les produits de
consommation (ISO/DIS 24550:2019)
Ta slovenski standard je istoveten z: prEN ISO 24550
ICS:
11.180.15 3ULSRPRþNL]DJOXKHRVHEHLQ Aids for deaf and hearing
RVHEH]RNYDURVOXKD impaired people
13.180 Ergonomija Ergonomics
oSIST prEN ISO 24550:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN ISO 24550:2019
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oSIST prEN ISO 24550:2019
DRAFT INTERNATIONAL STANDARD
ISO/DIS 24550
ISO/TC 159/SC 4 Secretariat: BSI
Voting begins on: Voting terminates on:
2019-01-11 2019-04-05
Ergonomics — Accessible design — Indicator lights on
consumer products
ICS: 11.180.15; 13.180
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 24550:2019(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
©
PROVIDE SUPPORTING DOCUMENTATION. ISO 2019
---------------------- Page: 3 ----------------------
oSIST prEN ISO 24550:2019
ISO/DIS 24550:2019(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2019
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved
---------------------- Page: 4 ----------------------
oSIST prEN ISO 24550:2019
ISO/DIS 24550:2019(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Accessibility considerations related to indicator lights . 3
4.1 Modes of lighting condition . 3
4.2 Colour . 4
4.3 Luminance . 4
4.4 Size . 5
4.5 Temporal luminance difference and blinking light frequency . 5
4.6 Location . 6
4.7 Alternative presentation of indicator light information. 6
4.8 Marking of the indicator light meaning . 6
4.9 Other factors . 7
5 Conformance statement . 7
Bibliography . 8
© ISO 2019 – All rights reserved iii
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oSIST prEN ISO 24550:2019
ISO/DIS 24550:2019(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following
URL: www .iso .org/iso/foreword .html.
This document was prepared by Technical Committee ISO/TC 159, Ergonomics, Subcommittee SC 4,
Ergonomics of human-system interaction.
iv © ISO 2019 – All rights reserved
---------------------- Page: 6 ----------------------
oSIST prEN ISO 24550:2019
ISO/DIS 24550:2019(E)
Introduction
Indicator lights of consumer products provide important information to use products properly.
Although their importance is recognized widely, many difficulties exist in relation to indicator lights
such as insufficient on/off visibility, unclear implications of lighting modes, and discomforting glare are
being claimed by users, particularly by older persons or persons with visual disabilities. These claims
results from the lack of a relevant standard related to indicator lights design. This standard is intended
to provide design guidelines for adequate brightness, colour, and use of blinking lights of indicator
lights considering the needs of older persons and persons with visual disabilities.
This international standard adopts the concepts of accessibility given in ISO/IEC Guide 71:2014 and in
ISO/TR 22411:2008.
© ISO 2019 – All rights reserved v
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oSIST prEN ISO 24550:2019
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oSIST prEN ISO 24550:2019
DRAFT INTERNATIONAL STANDARD ISO/DIS 24550:2019(E)
Ergonomics — Accessible design — Indicator lights on
consumer products
1 Scope
This International Standard specifies design guidelines for indicator lights, mainly LED sourced, on
consumer products for use by older people and people with visual disabilities. It does not consider the
needs of persons who are blind.
Indicator lights include those that inform users visually about the conditions, changes in functional
status and settings, and malfunction of products. They convey information by light on/off, time-
modulated intensity, blinking, colour, luminance level, and layout.
This document addresses household and home appliances. It excludes electronic displays presenting
characters and graphics, machinery, and appliances in special use for professional, technical, and
industrial applications.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the cited edition applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 17049:2013, Accessible design — Application of braille on signage, equipment and appliances
ISO 9241-391, Ergonomics of human-system interaction — Part 391: Requirements, analysis and compliance
test methods for the reduction of photosensitive seizures
CIE 017/E: 2011, ILV: International Lighting Vocabulary
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO/IEC Guide 71 and
CIE 017/E:2011 and the following apply.
3.1
consumer product
product that is intended to be acquired and used by an individual for personal rather than
professional use
[SOURCE: ISO/TS 20282-2:2013(en), 4.3]
3.2
indicator light
light which is associated with and indicative of the operation of a product
Note 1 to entry: Indicator light informs users about the conditions, changes in functional statuses and settings,
or malfunction of products.
Note 2 to entry: Indicator light conveys information by light on/off, time-modulated intensity, blinking, colour,
luminance level, and layout.
Note 3 to entry: Indicator light may have different shapes, e.g. circular, rectangular, triangular, or arrow shape.
© ISO 2019 – All rights reserved 1
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oSIST prEN ISO 24550:2019
ISO/DIS 24550:2019(E)
Note 4 to entry: Indicator light includes lights with a light conductor or cover. It may be located on a control
panel, labelled with text or an icon, or be an integral part of a control element.
3.3
small indicator light
indicator light emitting area that is smaller than 20’ in diameter of the visual angle
Note 1 to entry: Visual angle of 20’ corresponds to 3 mm size viewed at the 50 cm distance.
Note 2 to entry: Visual appearance of small indicator light smaller than 20’ of visual angle changes in brightness
and colour. According to the spatial summation of vision, brightness of a light smaller than 20’ of visual angle
changes proportionally with its size. Brightness of a light larger than 20’ of visual angle is determined by
luminance only. Colour for a smaller visual field than 20’ also changes its appearance described small-field
tritanopia, a kind of colour defect.
3.4
alarm light
light information and the optical source to announce emergencies and danger
3.5
low vision
a person with low vision is one who has impairment of visual functioning even after treatment and/or
standard refractive correction, and has a visual acuity of less than 6/18 to light perception, or a visual
field less than 10 degrees from the point of fixation, but who uses, or is potentially able to use, vision for
the planning and/or execution of
...
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