EN ISO 20320:2020

SLOVENSKI STANDARD
01-junij-2020
Varovalna obleka za uporabo pri deskanju na snegu - Ščitniki zapestja - Zahteve in
preskusne metode (ISO 20320:2020)
Protective clothing for use in Snowboarding - Wrist Protectors - Requirements and test
methods (ISO 20320:2020)
Schutzkleidung zum Gebrauch beim Snowboard-Fahren - Handgelenkschützer -
Anforderungen und Prüfverfahren (ISO 20320:2020)
Habillement de protection destinés à la pratique du surf des neiges - Protecteurs de
poignets - Exigences et méthodes d’essai (ISO 20320:2020)
Ta slovenski standard je istoveten z: EN ISO 20320:2020
ICS:
13.340.40 Varovanje dlani in rok Hand and arm protection
97.220.20 Oprema za zimske športe Winter sports equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 20320
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2020
EUROPÄISCHE NORM
ICS 13.340.40; 97.220.20
English Version
Protective clothing for use in Snowboarding - Wrist
Protectors - Requirements and test methods (ISO
20320:2020)
Habillement de protection destinés à la pratique du Schutzkleidung zum Gebrauch beim Snowboard-
surf des neiges - Protecteurs de poignets - Exigences et Fahren - Handgelenkschützer - Anforderungen und
méthodes d'essai (ISO 20320:2020) Prüfverfahren (ISO 20320:2020)
This European Standard was approved by CEN on 25 January 2020.

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
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 20320:2020 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 20320:2020) has been prepared by Technical Committee ISO/TC 94 "Personal
safety -- Personal protective 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 October 2020, and conflicting national standards shall
be withdrawn at the latest by October 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.
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(s).
For the 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, 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 20320:2020 has been approved by CEN as EN ISO 20320:2020 without any modification.
Annex ZA
(informative)
Relationship between this European Standard and the essential
requirements of Regulation (EU) 2016/425 of the European Parliament and
of the Council of 9 March 2016 on personal protective equipment aimed to
be covered
This European Standard has been prepared under a mandate given to CEN by the European
Commission and the European Free Trade Association to provide a means of conforming to Essential
Requirements of Regulation (EU) 2016/425.
Once this standard is cited in the Official Journal of the European Union under that Regulation (EU)
2016/425, 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 Regulation (EU) 2016/425 and associated EFTA regulations.
Table ZA1 — Correspondence between this European Standard and Regulation (EU) 2016/425
Essential Requirements of Clause(s)/subclauses(s) Remarks/Notes
Regulation (EU) 2016/425 of this standard
1.1.1 Ergonomic 4.3
1.1.2.1 Optimum level of protection 4.3
1.2.1 Absence of inherent risks and 4.2
other nuisance factors
1.2.1.1 Suitable constituent material 4.4
1.2.1.2 Satisfactory surface condition 4.4
of all PPE parts in contact with the
user
1.3.1 Adaptation of PPE to users 4.5
morphology
1.3.2 Lightness and strength 4.6
1.4 Information supplied by the 6, 7
manufacturer
2.4 PPE subject to ageing 6, 7
2.12 PPE bearing one or more 6
identification or recognition marks
directly or indirectly relating to
health
and safety
3.1.1 Impact caused by falling or 4.7/4.8
projecting objects and collision of
parts of the body with an obstacle
WARNING 1 — Presumption of conformity stays valid only as long as a reference to this
European Standard is maintained in the list published in the Official Journal of the European
Union. Users of this standard should consult frequently the latest list published in the Official
Journal of the European Union.
WARNING 2 — Other Union legislation may be applicable to the product(s) falling within the
scope of this standard.
INTERNATIONAL ISO
STANDARD 20320
First edition
2020-03
Protective clothing for use in
snowboarding — Wrist protectors —
Requirements and test methods
Habillement de protection destiné à la pratique du surf des neiges —
Protecteurs de poignets — Exigences et méthodes d’essai
Reference number
ISO 20320:2020(E)
©
ISO 2020
ISO 20320:2020(E)
© ISO 2020
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.
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Email: copyright@iso.org
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Published in Switzerland
ii © ISO 2020 – All rights reserved

ISO 20320:2020(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Requirements . 2
4.1 General . 2
4.2 Splints . 3
4.3 Ergonomics . 3
4.4 Innocuousness . 3
4.5 Restraint . 3
4.6 Impact strength . 3
4.7 Impact performance . 3
4.8 Limitation of wrist extension . 4
5 Testing . 4
5.1 General . 4
5.2 Sampling . 5
5.3 Conditioning . 5
5.3.1 General. 5
5.3.2 Room temperature conditioning . 5
5.3.3 Cold temperature conditioning . 5
5.4 Ergonomics . 6
5.5 Restraint . 6
5.6 Impact strength . 7
5.6.1 Apparatus . 7
5.6.2 Procedure . 7
5.7 Impact performance . 8
5.7.1 Test area . 8
5.7.2 Apparatus . 8
5.7.3 Procedure . 9
5.8 Limitation of wrist extension . 9
5.8.1 Principle . 9
5.8.2 Apparatus . 9
5.8.3 Procedure .12
6 Marking .12
7 Information supplied by the manufacturer .12
8 Test report .13
Bibliography .14
ISO 20320:2020(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 94, Personal safety — Protective clothing
and equipment, Subcommittee SC 13, Protective clothing, in collaboration with the European Committee
for Standardization (CEN) Technical Committee CEN/TC 162, Protective clothing including hand and arm
protection and lifejackets, in accordance with the Agreement on technical cooperation between ISO and
CEN (Vienna Agreement).
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 2020 – All rights reserved

ISO 20320:2020(E)
Introduction
Snowboarding are all the pastimes and competitions in which a snowboard is used. The users range
from small children to adults of all ages.
The wrist is the most frequently injured body region among snowboarders. The majority of wrist
injuries are consequences of falls. The most common injury mechanism is described as a compressive
load applied to a hyperextended wrist. Beginners and children have a high incidence of wrist injuries
due to snowboarding. One third of injuries among beginner snowboarders are to the wrist.
Studies have shown that the risk of sustaining a wrist injury can be reduced by wearing wrist
protection. Wrist protectors in snowboarding are intended to protect the wearer against fractures as
well as contusions and sprains.
Wrist protectors will not prevent all wrist, forearm, hand, elbow and shoulder injuries in snowboard
accidents.
A wide variety of wrist protectors is commercially available. Consumers can choose between different
principal design concepts. One is the “integrated protection concept” in which the protective elements
are integrated within a glove. Another one is the “separated protection concept” where the protective
elements are individual components (similar to a brace or orthosis) that can be worn with or without a
[3][4][5][6]
glove. If worn with a glove it can be foreseen to place them underneath or on top of the glove .
INTERNATIONAL STANDARD ISO 20320:2020(E)
Protective clothing for use in snowboarding — Wrist
protectors — Requirements and test methods
1 Scope
This document specifies the requirements and test methods for ergonomics, innocuousness, comfort/
sizing, restraint, ability to limit wrist extension and attenuate impact force on the palm as well as
provisions for marking and instructions supplied by the manufacturer for wrist protectors for all users
of snowboard equipment.
It does not apply to protectors used in roller sports, alpine skiing, or other sports. This document does
not address protection for the forearm due to axial forces caused by an impact on the fingers or fist.
Moreover, this document does not address protection against palmar flexion (terminal flexion) caused
by an impact on the dorsal side of the hand.
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 21420:2020, Protective gloves — General requirements and test methods
ISO 13999-1:1999, Protective clothing — Gloves and arm guards protecting against cuts and stabs by hand
knives — Part 1: Chain mail gloves and arm guards
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:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1
wrist
radio-carpal joint
3.2
dorsal
pertaining to upper side or back of the hand and wrist
3.3
palmar
pertaining to the palm side of the hand and wrist
3.4
wrist protector
wrist guard
device worn on the wrist and extending onto the forearm and the hand, that is intended to reduce the
risk of wrist injuries by mechanical impact
ISO 20320:2020(E)
3.5
concepts of wrist protectors
3.5.1
integrated protection concept
glove and protection elements forming one unit and used as one product
3.5.2
standalone protection concept
protection elements forming a wrist protector which can be worn with a glove, where the suitable type
of glove will be specified by the manufacturer
Note 1 to entry: The manufacturer specifies how the protector is to be worn, including, whether the protector is
to be worn underneath or on top of the glove.
3.7
stiffness element
design element that limits wrist extension
3.8
splint
type of stiffness element that uses semi-rigid support on either the dorsal and/or palmar area of the
protector
3.9
fastener
strap or
...