SIST EN ISO 20471:2013

SLOVENSKI STANDARD
SIST EN ISO 20471:2013
01-julij-2013
1DGRPHãþD
SIST EN 471:2003+A1:2008
Dobro vidna obleka - Preskusne metode in zahteve (ISO 20471:2013)
High visibility clothing - Test methods and requirements (ISO 20471:2013)
Warnkleidung - Prüfverfahren und Anforderungen (ISO 20471:2013)
Vêtements à haute visibilité - Méthodes d'essai et exigences (ISO 20471:2013)
Ta slovenski standard je istoveten z: EN ISO 20471:2013
ICS:
13.340.10 Varovalna obleka Protective clothing
SIST EN ISO 20471:2013 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 20471:2013

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SIST EN ISO 20471:2013


EUROPEAN STANDARD
EN ISO 20471

NORME EUROPÉENNE

EUROPÄISCHE NORM
March 2013
ICS 13.340.10 Supersedes EN 471:2003+A1:2007
English Version
High visibility clothing - Test methods and requirements (ISO
20471:2013, Corrected version 2013-06-01)
Vêtements à haute visibilité - Méthodes d'essai et Hochsichtbare Warnkleidung - Prüfverfahren und
exigences (ISO 20471:2013, Version corrigée 2013-06-01) Anforderungen (ISO 20471:2013, korrigierte Fassung 2013-
06-01)
This European Standard was approved by CEN on 1 March 2013.

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 20471:2013: E
worldwide for CEN national Members.

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SIST EN ISO 20471:2013
EN ISO 20471:2013 (E)
Contents Page
Foreword .3
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 89/686/EEC .4

2

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SIST EN ISO 20471:2013
EN ISO 20471:2013 (E)
Foreword
This document (EN ISO 20471:2013) has been prepared by Technical Committee ISO/TC 94 "Personal safety
- Protective clothing and equipment" in collaboration with Technical Committee CEN/TC 162 “Protective
clothing including hand and arm protection and lifejackets” 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 September 2013, and conflicting national standards shall be
withdrawn at the latest by September 2013.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 471:2003+A1:2007.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive.
For relationship with EU Directive, see informative Annex ZA, which is an integral part of this document.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 20471:2013, Corrected version 2013-06-01 has been approved by CEN as EN ISO
20471:2013 without any modification.
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SIST EN ISO 20471:2013
EN ISO 20471:2013 (E)
Annex ZA
(informative)
Relationship between this European Standard and the Essential
Requirements of EU Directive 89/686/EEC
This European Standard has been prepared under a mandate given to CEN by the European Commission
and the European Free Trade Association to provide one means of conforming to Essential Requirements of
the New Approach Directive 89/686/EEC on the approximation of the laws of the Member States relating to
personal protective equipment.
Once this standard is cited in the Official Journal of the European Union under that Directive and has been
implemented as a national standard in at least one Member State, compliance with the normative clauses of
this standard given in Table ZA.1 confers, within the limits of the scope of this standard, a presumption of
conformity with the corresponding Essential Requirements of that Directive and associated EFTA regulations.
Table ZA.1 — Correspondence between this European Standard and Directive 89/686/EEC
Clause(s)/subclause( s) of this Essential Requirements (ERs) Qualifying remarks/notes
EN of Directive 89/686/EEC
4.1 1.1.2.2 Classes of protection
appropriate to different levels of
risk
4.1; 4.2; 5.4 1.2.1 Absence of risks and
other ‘inherent' nuisance factors
5.2; 5.3; 5.5; 6.2 1.3.2 Lightness and design
strength
6.2 1.4 Information supplied by the
manufacturer
5.6 2.2 PPE “enclosing” the parts of
the body to be protected
7.5.1 2.4 PPE subject to ageing
8 2.12 PPE bearing one or more
identification or recognition marks
directly or indirectly relating to
health and safety
5.1, 6.1 2.13 PPE capable of signalling the
user's presence visually

WARNING — Other requirements and other EU Directives may be applicable to the product(s) falling within
the scope of this standard.

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SIST EN ISO 20471:2013
INTERNATIONAL ISO
STANDARD 20471
First edition
2013-03-15
Corrected version
2013-06-01
High visibility clothing — Test
methods and requirements
Vêtements à haute visibilité — Méthodes d’essai et exigences
Reference number
ISO 20471:2013(E)
©
ISO 2013

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SIST EN ISO 20471:2013
ISO 20471:2013(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2013
All rights reserved. Unless otherwise specified, 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
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Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2013 – All rights reserved

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SIST EN ISO 20471:2013
ISO 20471:2013(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Design . 3
4.1 Types and classes . 3
4.2 Specific design requirements . 4
4.3 Size designation . 9
5 Requirements for background material, non-fluorescent material and combined
performance material .10
5.1 Colour performance requirements of new material.10
5.2 Colour after Xenon test .10
5.3 Colour fastness of background material and all non-fluorescent material layers after
test exposure .11
5.4 Dimensional change of background material and non-fluorescent material.11
5.5 Mechanical properties for background material and non-fluorescent material .12
5.6 Physiological performance — Water vapour and thermal resistance .12
6 Photometric performance requirements for retroreflective material and combined
performance material after physical exposure .12
6.1 Retroreflective performance requirements of new material .12
6.2 Retroreflective performance requirements after test exposure .13
7 Test methods .14
7.1 Sampling and conditioning .14
7.2 Determination of colour .14
7.3 Method of determination of retroreflective photometric performance .14
7.4 Retroreflection after exposure .15
7.5 Ageing .15
8 Marking .16
9 Information supplied by the manufacturer .16
Annex A (informative) Information concerning risk situations .17
Annex B (normative) Positioning of bands of retroreflective material on jackets for industrial
wash test only .18
Annex C (normative) Method of measuring wet retroreflective performance .19
Annex D (informative) Guidelines for the design of high visibility garments .21
Bibliography .22
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SIST EN ISO 20471:2013
ISO 20471:2013(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International
Standards adopted by the technical committees are circulated to the member bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the member bodies
casting a vote.
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.
ISO 20471 was prepared by Technical Committee ISO/TC 94, Personal safety — Protective clothing and
equipment, Subcommittee SC 13, Protective clothing.
This corrected version of ISO 20471:2013 incorporates the following correction:
— in the fourth paragraph of subclause 4.1 the requirement concerning the sleeves of a class 3 garment
has been corrected.
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SIST EN ISO 20471:2013
ISO 20471:2013(E)

Introduction
The performance of the conspicuity-enhancing materials to be used for high risk-related visibility clothing
is specified photometrically together with minimum areas and placement (design) requirements.
Conspicuity is the property that makes an object readily attract visual attention. This is a particularly
important feature in complex environments which have visually competing objects. Conspicuity
is determined by an object’s luminance contrast, colour contrast, pattern and design, and motion
characteristics relative to the ambient background against which it is seen.
Three classes of garment are defined based on three different minimum areas of retroreflective,
fluorescent and/or combined performance materials. Each of these classes will provide a different
level of conspicuity, class 3 being the class that provides the highest degree of conspicuity against most
backgrounds found in urban and rural situations in daylight and in night time. Users should select
the required class of performance based on a risk assessment of the location/situation in which the
protection afforded by clothing to this International Standard is required.
This International Standard contains requirements relating to risk assessment and risk analysis of
high visibility garments. Possible designs illustrating the placement of retroreflective materials are
included within the standard. Ergonomic factors such as fit/sizing, comfort, and range of motion of the
wearer should be considered when selecting the most appropriate configuration of retroreflective and
fluorescent materials within the garment.
Selection and use of high visibility clothing can vary among user countries and may be subject to local
regulations. This International Standard contains requirements relating to risk assessment of the
condition in which the high visibility clothing is to be used. This will involve consideration of the factors
which may affect an observer’s ability to detect that a person is present. The observer needs both to
perceive and to recognize the wearer and then needs to be able to take appropriate avoidance action.
The wearing of a conspicuity-enhancing high visibility garment does not guarantee that the wearer will
be visible under all conditions.
The minimum requirements given within this International Standard are determined by the specific
test methods and their assigned measuring values. The tests are partly performed on new materials
and partly on preconditioned materials. By preconditioning (e.g. folding of retroreflective material) a
load of the materials is simulated. However, it should be noted that laboratory testing may not represent
real life conditions. The conspicuity performance of a garment will depend on usage (e.g. dirt, solar
irradiation), care (e.g. cleaning agent, repair), storage (e.g. dust-free, lightproof), etc.
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SIST EN ISO 20471:2013

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SIST EN ISO 20471:2013
INTERNATIONAL STANDARD ISO 20471:2013(E)
High visibility clothing — Test methods and requirements
1 Scope
This International Standard specifies requirements for high visibility clothing which is capable of
visually signalling the user’s presence. The high visibility clothing is intended to provide conspicuity of
the wearer in any light condition when viewed by operators of vehicles or other mechanized equipment
during daylight conditions and under illumination of headlights in the dark. For further information
concerning risk situations, see Annex A.
This International Standard is not applicable to medium-risk and low-risk situations.
Performance requirements are included for colour and retroreflection as well as for the minimum areas
and for the placement of the materials in protective clothing.
2 Normative references
The following referenced documents are indispensable for the application 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 105-A02, Textiles — Tests for colour fastness — Part A02: Grey scale for assessing change in colour
ISO 105-A03, Textiles — Tests for colour fastness — Part A03: Grey scale for assessing staining
ISO 105-B02:1994, Textiles — Tests for colour fastness — Part B02: Colour fastness to artificial light: Xenon
arc fading lamp test
ISO 105-C06, Textiles — Tests for colour fastness — Part C06: Colour fastness to domestic and
commercial laundering
ISO 105-D01, Textiles — Tests for colour fastness — Part D01: Colour fastness to drycleaning using
perchloroethylene solvent
ISO 105-E04, Textiles — Tests for colour fastness — Part E04: Colour fastness to perspiration — Part E04:
Colour fastness to perspiration
ISO 105-N01, Textiles — Tests for colour fastness — Part N01: Colour fastness to bleaching: Hypochlorite —
Tests for colour fastness — Part N01: Colour fastness to bleaching: Hypochlorite
ISO 105-X11, Textiles — Tests for colour fastness — Part X11: Colour fastness to hot pressing — Tests for
colour fastness — Part X11: Colour fastness to hot pressing
ISO 105-X12, Textiles — Tests for colour fastness — Part X12: Colour fastness to rubbing
ISO 1421:1998, Rubber- or plastics-coated fabrics — Determination of tensile strength and elongation at break
ISO 4674-1:2003, Rubber- or plastics-coated fabrics — Determination of tear resistance — Part 1: Constant
rate of tear methods
ISO 4675, Rubber- or plastics-coated fabrics — Low-temperature bend test
ISO 7854:1995, Rubber- or plastics-coated fabrics — Determination of resistance to damage by flexing
ISO 11092, Textiles — Physiological effects — Measurement of thermal and water-vapour resistance under
steady-state conditions (sweating guarded-hotplate test)
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SIST EN ISO 20471:2013
ISO 20471:2013(E)

ISO 12947-2, Textiles — Determination of the abrasion resistance of fabrics by the Martindale method —
Part 2: Determination of specimen breakdown
ISO 13688:1998, Protective clothing — General requirements
ISO 13934-1, Textiles — Tensile properties of fabrics — Part 1: Determination of maximum force and
elongation at maximum force using the strip method
ISO 13938 (all parts), Textiles — Bursting properties of fabrics
EN 343, Protective clothing — Protection against rain
CIE 15, Colorimetry
CIE 54.2, Retroreflection — Definition and measurement
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
high visibility clothing
warning clothing intended to provide improved conspicuity in situations where the risk of not being
seen is high
3.2
fluorescent material
material that emits electromagnetic radiation at visible wavelengths longer than those absorbed
3.3
background material
coloured fluorescent material intended to be highly conspicuous, but not intended to comply with the
requirements of this International Standard for retroreflective material
3.4
retroreflective material
material which is a retroreflector but which is not intended to comply with the requirements of this
International Standard for background material
3.5
separate-performance material
material intended to exhibit either background or retroreflective properties but not both
3.6
combined-performance material
material intended to exhibit both background and retroreflective properties
3.7
orientation-sensitive material
material having coefficients of retroreflection that differ by more than 15 % when measured at the two
rotation angles ε = 0° and ε = 90°
1 2
3.8
torso
thorax and abdomen or section of the body to which the limbs, head and neck are attached
3.9
long sleeve
(1/1 arm)
part of a garment that is completely covering the arm
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SIST EN ISO 20471:2013
ISO 20471:2013(E)

3.10
road
traffic-related area with moving vehicles
EXAMPLE Cycling path, harbour, airport, railway track and car park.
3.11
active road user
person on the road, participating in the traffic and with the attention on the traffic
Note 1 to entry: e.g. cyclist using the road and pedestrian using the road.
3.12
passive road user
person on the road, not participating in vehicular traffic and with attention focused on something
other than traffic
EXAMPLE Road worker, person in emergency situation.
3.13
outer shell
outermost material of which the warning clothing is made
4 Design
4.1 Types and classes
High visibility clothing is grouped into three classes related to risk assessment. Each class shall have
minimum areas of high visibility materials incorporated in the garment in accordance with Table 1. Garments
shall comprise the required areas of background material and retroreflective material or alternatively
shall comprise the required area of combined performance material. The area shall be measured on the
smallest garment size available with all fasteners adjusted to the smallest configuration possible.
The garment shall be made up of high visibility material on all sides. To ensure visibility from all sides
(360° visibility), it is important that horizontal retroreflective bands and fluorescent materials encircle
torso, trouser legs and sleeves.
The performance class can be obtained using a single garment or a clothing ensemble, e.g. jacket and
trousers. An assembly, e.g. a classified trouser and a classified jacket, can be classified as a higher class
if the assembly meets the minimum requirement achieved by the actually visible area when wearing
the garment. This higher class shall be additionally specified in both the information for use and on the
labels of both garments (see Clause 8).
Regardless of the area of materials used, a class 3 garment shall cover the torso and shall have as a
minimum either sleeves with retroreflective bands or full length trouser legs with retroreflective
bands, if not both.
2
Table 1 — Minimum required areas of visible material in m
Material Class 3 garments Class 2 garments Class 1 garments
Background material 0,80 0,50 0,14
Retroreflective material 0,20 0,13 0,10
Combined performance material n. a. n. a. 0,20
NOTE The clothing class is determined by the lowest area of visible material.
The minimum visible area requirements to achieve a garment classification in Table 1 are not to be
reduced or compromised due to the presence of any logos, lettering, labels etc.
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SIST EN ISO 20471:2013
ISO 20471:2013(E)

At least (50 ± 10) % of the minimum area of visible background material shall be on the front part of
the garment. Only those areas of retroreflective materials that comply with the design requirements of
4.2 shall be used in the assessment of the minimum required area of retroreflective areas. When using
two or more background materials, the total area usable regardless of colour shall be measured. The
garment is to be measured flat on the table including torso, arms and legs.
NOTE For additional information on high visibility garment design, see Annex D.
4.2 Specific design requirements
4.2.1 Garments covering only the torso
The background material shall encircle the torso and shall maintain a minimum width (height) of 50 mm.
Interruptions of background material by retroreflective stripes are not counted. Bands of retroreflective
material shall be at least 50 mm wide.
Garments only covering the torso shall have one or more bands of retroreflective material encircling
the torso with a maximum inclination of ± 20° to the horizontal and bands of retroreflective material
joining the torso band from the front to the back over each shoulder. The bottom of the lowest torso
band shall be at least 50 mm above the bottom edge. If more than one horizontal band is applied the
horizontal bands shall be at least 50 mm apart.
Alternatively, garments covering only the torso shall have two bands of retroreflective material at least
50 mm apart and encircling the torso with a maximum inclination of ± 20° to the horizontal. The bottom
of the lowest torso band shall be at least 50 mm above the bottom edge.
Tabards shall be constructed so that a person of the size for which they are designed can wear the
tabard so that any gaps at the sides shall not be greater than 50 mm horizontally.
Any gap (for fastening systems and seams) in the lengthwise continuity of each band of retroreflective or
combined performance material shall not be greater than 50 mm, measured parallel to the direction of
the band, and the total of such gaps shall not be greater than 100 mm in any one band around the torso.
Examples of garments covering only the torso are given in Figure 1.
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SIST EN ISO 20471:2013
ISO 20471:2013(E)

Dimensions in millimetres
Figure 1 — Examples of garments covering only the torso
NOTE Examples of garments covering only the torso are vests and tabards.
4.2.2 Garments covering torso and arms
The background material shall encircle the torso and the sleeves and shall maintain a minimum width
(height) of 50 mm. Interruptions by retroreflective stripes are not counted. Bands of retroreflective
material shall be at least 50 mm wide.
Garments covering the torso and arms shall have one or more bands of retroreflective ma
...