EN ISO 22568-4:2019

SLOVENSKI STANDARD
01-julij-2019
Nadomešča:
SIST EN 12568:2010
Ščitniki nog in stopal - Zahteve in preskusne metode za sestavne dele obutve - 4.
del: Nekovinski vložki, odporni proti prediranju (ISO 22568-4:2019)
Foot and leg protectors - Requirements and test methods for footwear components - Part
4: Non-metallic perforation resistant inserts (ISO 22568-4:2019)
Fuß- und Beinschutz - Anforderungen und Prüfverfahren für Schuhkomponenten - Teil 4:
Nichtmetallische perforationsbeständige Einlagen (ISO 22568-4:2019)
Protecteurs du pied et de la jambe - Exigences et méthodes d'essais pour les
composants de chaussure - Partie 4: Inserts anti-perforation non métalliques (ISO 22568
-4:2019)
Ta slovenski standard je istoveten z: EN ISO 22568-4:2019
ICS:
13.340.50 Varovanje nog in stopal Leg and foot protection
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 22568-4
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2019
EUROPÄISCHE NORM
ICS 13.340.50 Supersedes EN 12568:2010
English Version
Foot and leg protectors - Requirements and test methods
for footwear components - Part 4: Non-metallic
perforation resistant inserts (ISO 22568-4:2019)
Protecteurs du pied et de la jambe - Exigences et Fuß- und Beinschutz - Anforderungen und
méthodes d'essais pour les composants de chaussure - Prüfverfahren für Schuhkomponenten - Teil 4:
Partie 4: Inserts anti-perforation non métalliques (ISO Nichtmetallische perforationsbeständige Einlagen (ISO
22568-4:2019) 22568-4:2019)
This European Standard was approved by CEN on 25 February 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, 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 22568-4:2019 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 22568-4:2019) has been prepared by Technical Committee ISO/TC 94
"Personal safety -- Personal protective equipment" in collaboration with Technical Committee CEN/TC
161 “Foot and leg protectors” the secretariat of which is held by BSI.
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 November 2019, and conflicting national standards
shall be withdrawn at the latest by November 2019.
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 supersedes EN 12568:2010.
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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 22568-4:2019 has been approved by CEN as EN ISO 22568-4:2019 without any
modification.
INTERNATIONAL ISO
STANDARD 22568-4
First edition
2019-03
Foot and leg protectors —
Requirements and test methods for
footwear components —
Part 4:
Non-metallic perforation resistant
inserts
Protecteurs du pied et de la jambe — Exigences et méthodes d'essais
pour les composants de chaussure —
Partie 4: Inserts anti-perforation non métalliques
Reference number
ISO 22568-4:2019(E)
©
ISO 2019
ISO 22568-4:2019(E)
© 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.
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Phone: +41 22 749 01 11
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Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved

ISO 22568-4:2019(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Requirements for non-metallic perforation resistant inserts . 1
4.1 General . 1
4.2 Resistance to nail perforation . 2
4.3 Flexing resistance . 2
4.4 Stability against ageing and environmental influence . 3
4.5 Electrical resistance . 3
5 Test methods for the non-metallic perforation resistant inserts . 3
5.1 Determination of perforation resistance . 3
5.1.1 Method Y: with conical nail . 3
5.1.2 Method X: with pyramidal nail . 3
5.2 Determination of flexing resistance . 3
5.2.1 Apparatus . 3
5.2.2 Sampling. 4
5.2.3 Test procedure . 5
5.2.4 Results . 5
5.2.5 Test report . 5
5.3 Test methods for the assessment non-metallic perforation resistant inserts in
critical environment . 6
5.3.1 Sampling. 6
5.3.2 Effect of high temperature . 6
5.3.3 Effect of acid sweat . 6
5.3.4 Effect of alkali sweat . 6
5.3.5 Effect of fuel oil . 6
5.3.6 Results . 6
5.3.7 Test report . 6
5.4 Determination of the electrical resistance . 7
5.4.1 Testing procedure . 7
5.4.2 Test report . 8
6 Marking . 8
Annex A (normative) Method Y: Perforation resistance with the conical nail .9
Annex B (normative) Method X : Perforation resistance with the pyramidal nail .12
Annex C (normative) Procedure for the checking of the nail .17
Bibliography .19
ISO 22568-4:2019(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 94, Personal safety — Personal protective
equipment, Subcommittee SC 3, Foot protection.
A list of all parts in the ISO 22568 series can be found on the ISO website.
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

ISO 22568-4:2019(E)
Introduction
ISO 20345, ISO 20346 and ISO 20347 are related to safety, protective and occupational footwear which
define the performance and required properties of the footwear. On introducing these standards all
national standards relating to perforation resistant inserts were withdrawn leaving the manufacturers
of these items with no means of demonstrating the performance of their products. This document has
been prepared to allow manufacturers to demonstrate the type of the perforation resistant inserts
before being inserted into the footwear.
Non-metallic perforation resistant inserts and materials complying with the requirements of this
document are suitable components of “PPE footwear”.
INTERNATIONAL STANDARD ISO 22568-4:2019(E)
Foot and leg protectors — Requirements and test methods
for footwear components —
Part 4:
Non-metallic perforation resistant inserts
1 Scope
This document specifies requirements and test methods for the non-metallic inserts with resistance
against mechanical perforation, intended to function as components of PPE footwear (e.g. as described
by ISO 20345, ISO 20346 and ISO 20347).
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 105-E04: 2013, Textiles — Tests for colour fastness — Part E04: Colour fastness to perspiration
ISO 20344:2011, Personal protective equipment — Test methods for footwear
ISO 20345, Personal protective equipment — Safety footwear
ISO 20346, Personal protective equipment — Protective footwear
ISO 20347, Personal protective equipment — Occupational footwear
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 20345, ISO 20346 and
ISO 20347 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
non-metallic perforation resistant insert
non-metallic footwear component placed (or intended to be placed) in the sole complex in order to
provide protection against mechanical perforation
4 Requirements for non-metallic perforation resistant inserts
4.1 General
Depending on the footwear construction, the non-metallic perforation resistant inserts could be in
contact with the wearer foot, therefore the requirements of ISO 20345, ISO 20346 and ISO 20347 should
be taken into account (for example abrasion resistance, water absorption).
ISO 22568-4:2019(E)
Perforation resistant material can be tested in accordance with this document, even in an unshaped
status, if it is intended to be cut and/or shaped by the footwear or sole manufacturer. When shaped
non-metallic perforation resistant inserts are tested in accordance with this document, their suitability
to fit into footwear is not assured, because the dimensional conformity to the footwear depends on the
individual shape of each model of footwear.
Table 1 — Summary of requirements and number of samples
Property Subclause Number of samples Status
Non-metallic material: 1 sample
Resistance to nail perfo-
4.2 mandatory
ration
Ready –shaped inserts: 1 sample
Non-metallic material: 1 sample
Flexing resistance 4.3 mandatory
Ready – shaped inserts: 2 different
sizes
Non-metallic material: 1 sample for
Stability against ageing
each test
and environmental 4.4 mandatory
Ready –shaped inserts: 1 sample for
influence
each test
Electrical resistance 4.5 Non-metallic material: 1 sample optional
NOTE  For details, see 4.2 to 4.5.
For each of the required measurements performed in accordance with this standard, a corresponding
estimate of the uncertainty of measurement should be evaluated. One of the following approaches shall
be used:
[2]
— a statistical method, e.g. that given in ISO 5725-2 ;
[4]
— a mathematical method, e.g. that given in ISO/IEC Guide 98-3 ;
[5]
— uncertainty and conformity assessment as given in ISO/IEC Guide 98-4 ;
[6]
— JCGM 100:2008 .
4.2 Resistance to nail perforation
When the non-metallic perforation resistant inserts are tested in accordance with the applicable
methods described in 5.1, they shall meet one of the two types given in Table 2.
Table 2 — Minimum requirements for the perforation force
Types Test method Requirements
Perforation test (see A.4)
Type Y See 5.1.1
the four results reported shall be “pass”
Perforation force (B.4)
Type X See 5.1.2
the average value reported shall be greater or equal to 1 100 N
NOTE This property has two types in term of the protection afforded. This covers the degree of risk
or hazard that a user will face in terms of the type of working places. Type X offers more appropriate
protection from smaller diameter and sharper objects than type Y.
4.3 Flexing resistance
When tested in accordance with the method described in 5.2, the non-metallic perforation resistant
insert shall exhibit no visible signs of cracking, disintegration or delamination after having been
subjected to 1 × 10 (one million) flexion cycles.
2 © ISO 2019 – All rights reserved

ISO 22568-4:2019(E)
4.4 Stability against ageing and environmental influence
When subjected to each single one of the 4 treatments described in 5.3 and tested in accordance
with the method described in 5.1, the non-metallic perforation resistant insert shall conform to the
requirements of 4.2.
4.5 Electrical resistance
This property is optional and frequently requested when the non-metallic perforation resistant inserts
are supposed to be used in an antistatic or conductive footwear (ISO 20345:2011, 6.2.2.1 and 6.2.2.2).
The results of this test, see
...