Personal protective equipment - Safety footwear (ISO 20345:2021)

This standard  specifies basic and additional (optional) requirements for safety footwear used for general purpose. It includes, for example, mechanical risks, slip resistance, thermal risks, ergonomic behaviour. Special risks are covered by complementary job-related standards, e.g. footwear for firefighters, electrical insulating footwear, footwear protecting against chain saw injuries, chemicals, molten metal splash, and protection for motor cycle riders.

Persönliche Schutzausrüstung - Sicherheitsschuhe (ISO 20345:2021)

Dieses Dokument legt Grundanforderungen und (optionale) Zusatzanforderungen an Sicherheitsschuhe für allgemeine Zwecke fest. Das schließt zum Beispiel mechanische Risiken, die Rutschhemmung, thermische Risiken und ergonomische Merkmale ein. Es legt zudem Anforderungen an Sicherheitsschuhe mit zugerichteten Einlegesohlen, zugerichtete Sicherheitsschuhe oder individuell gefertigte zugerichtete Sicherheitsschuhe fest. Diese Norm befasst sich nicht mit der Eigenschaft hoher Sichtbarkeit aufgrund des Zusammenwirkens mit der Kleidung (z. B. die Schuhe bedeckende Hosen) und den Arbeitsplatzbedingungen (z. B. Schmutz, Schlamm).
Besondere Risiken werden in ergänzenden, auf einzelne Tätigkeiten bezogenen Normen behandelt (z. B. Schuhe für die Feuerwehr, elektrisch isolierende Schuhe, Schutzschuhe gegen Verletzungen durch Kettensägen, Schuhe zum Schutz gegen Chemikalien, Schuhe zum Schutz gegen flüssige Metallspritzer, Schutzschuhe für Motorradfahrer).

Équipement de protection individuelle - Chaussures de sécurité (ISO 20345:2021)

Le présent document spécifie des exigences fondamentales et additionnelles (optionnelles) relatives aux chaussures de sécurité d'usage général. Il inclut, par exemple, les risques mécaniques, la résistance au glissement, les risques thermiques et le comportement ergonomique. Il spécifie également les exigences relatives aux chaussures de sécurité munies de premières de propreté, les chaussures de sécurité personnalisées ou les chaussures de sécurité personnalisées fabriquées individuellement. La présente norme ne couvre pas la propriété de haute visibilité en raison de l'interaction avec les vêtements (par exemple, le pantalon recouvre la chaussure) et les conditions du lieu de travail (par exemple, saleté, boue).
Les risques particuliers sont couverts par des normes complémentaires relatives au travail (par exemple, chaussures pour pompiers, chaussures isolantes électriquement, chaussures résistantes aux coupures de scies à chaîne, protection contre les produits chimiques ou les projections de métal fondu, chaussures pour motocyclistes).

Osebna varovalna oprema - Zaščitna obutev (ISO 20345:2021)

Ta standard določa osnovne in dodatne (neobvezne) zahteve za zaščitno obutev, namenjeno splošni uporabi. Zajema na primer mehanska tveganja, odpornost proti zdrsu, toplotna tveganja in ergonomski odziv. Posebna tveganja so obravnavana v dopolnilnih standardih, povezanih s poklici (npr. obutev za gasilce, elektroizolacijska obutev, obutev za zaščito pred poškodbami z verižno žago, kemikalijami in obrizgom staljene kovine ter zaščita za motoriste).

General Information

Status
Published
Public Enquiry End Date
19-Jun-2020
Publication Date
13-Apr-2022
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Apr-2022
Due Date
06-Jun-2022
Completion Date
14-Apr-2022

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SLOVENSKI STANDARD
SIST EN ISO 20345:2022
01-maj-2022
Nadomešča:
SIST EN ISO 20345:2012
Osebna varovalna oprema - Zaščitna obutev (ISO 20345:2021)
Personal protective equipment - Safety footwear (ISO 20345:2021)
Persönliche Schutzausrüstung - Sicherheitsschuhe (ISO 20345:2021)
Équipement de protection individuelle - Chaussures de sécurité (ISO 20345:2021)
Ta slovenski standard je istoveten z: EN ISO 20345:2022
ICS:
13.340.50 Varovanje nog in stopal Leg and foot protection
SIST EN ISO 20345:2022 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN ISO 20345:2022
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SIST EN ISO 20345:2022
EN ISO 20345
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2022
EUROPÄISCHE NORM
ICS 13.340.50 Supersedes EN ISO 20345:2011
English Version
Personal protective equipment - Safety footwear (ISO
20345:2021)

Équipement de protection individuelle - Chaussures de Persönliche Schutzausrüstung - Sicherheitsschuhe (ISO

sécurité (ISO 20345:2021) 20345:2021)
This European Standard was approved by CEN on 30 December 2021.

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

© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 20345:2022 E

worldwide for CEN national Members.
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SIST EN ISO 20345:2022
EN ISO 20345:2022 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

Annex ZA (informative) Relationship between this European Standard and the essential

requirements of PPE Regulation (EU) 2016/425 aimed to be covered ....................................... 4

---------------------- Page: 4 ----------------------
SIST EN ISO 20345:2022
EN ISO 20345:2022 (E)
European foreword

This document (EN ISO 20345:2022) 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 September 2022, and conflicting national standards

shall be withdrawn at the latest by March 2023.

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 ISO 20345:2011.

This document has been prepared under a Standardization Request given to CEN by the European

Commission and the European Free Trade Association, and supports essential requirements of EU

Directive(s) / Regulation(s).

For the relationship with EU Directive(s) / Regulation(s), see informative Annex ZA, which is an integral

part of this document.

Any feedback and questions on this document should be directed to the users’ national standards

body/national committee. A complete listing of these bodies can be found on the CEN website.

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 20345:2021 has been approved by CEN as EN ISO 20345:2022 without any modification.

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SIST EN ISO 20345:2022
EN ISO 20345:2022 (E)
Annex ZA
(informative)
Relationship between this European Standard and the essential
requirements of PPE Regulation (EU) 2016/425 aimed to be covered

This European Standard has been prepared under a Commission’s standardization request M/571 to

provide one voluntary means of conforming to essential requirements of REGULATION (EU) 2016/425

OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 9 March 2016 on personal protective

equipment and repealing Council Directive 89/686/EEC.

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, and associated EFTA regulations.

Table ZA.1 — Correspondence between this European Standard and Annex II of REGULATION

(EU) 2016/425
ESSENTIAL HEALTH AND
SAFETY REQUIREMENTS of
Clause(s)/sub-clause(s) of this Remarks/Notes
REGULATION (EU)
EN ISO
2016/425
General requirements applicable to all PPE
1.1.1 Ergonomics 5.3.4
1.1.2.1 Optimum level of protection 5.3.4
Absence of inherent risks and other
1.2.1 5.3.4
nuisance factors
1.2.1.1 Suitable constituent materials 5.3.6
1.2.1.2 Satisfactory surface condition of all 5.3.4
PPE parts in contact with the user
1.2.1.3 Maximum permissible user 5.3.4
impediment
1.3.1 Adaptation of PPE to user morphology 5.3.4
1.3.2 Lightness and strength 5.3.1.2, 5.4.3, 5.4.4, 5.4.5, 5.5.2,
5.6.2, 5.8.3, 5.8.4, 5.8.6, 6.2.7,
6.2.8
1.4 Manufacturer’s instructions and Clause 8
information
2.2 PPE enclosing the parts of the body 5.4.6, 5.5.4, 5.7.3
to be protected
2.4 PPE subject to ageing Clause 7 and Clause 8
2.6 PPE for use in potentially explosive 6.2.2.1; 6.2.2.2
Atmospheres
2.12 PPE bearing one or more 6.1 Table 16, Clause 7
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SIST EN ISO 20345:2022
EN ISO 20345:2022 (E)
identification markings or indicators
directly or indirectly relating to
health and safety
2.14 Multi-risk PPE 5.3.5 6.2.1, 6.2.2, 6.2.3, 6.2.4,
6.2.5, 6.2.6, 6.2.7, 6.2.8, 6.2.10,
6.4.1, 6.4.2
3.1.1 Impact caused by falling or ejected 5.3.2.6, 6.2.6, 6.2.7
objects and collisions of parts of the
body with an obstacle
3.1.2.1 Prevention of falls due to slipping 5.3.5, 5.8.2, 6.4.3, 6.2.10,
3.2 Protection against static compression 5.3.2.7, 6.2.4
of part of the body
3.3 Protection against mechanical injuries 5.5.2, 5.8.3, 6.2.1, 6.2.8, 6.2.9
3.6 Protection against heat and/or fire 6.2.3.1; 6.4.1
3.7 Protection against cold 6.2.3.2

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.
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SIST EN ISO 20345:2022
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SIST EN ISO 20345:2022
INTERNATIONAL ISO
STANDARD 20345
Third edition
2021-12
Personal protective equipment —
Safety footwear
Équipement de protection individuelle — Chaussures de sécurité
Reference number
ISO 20345:2021(E)
© ISO 2021
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SIST EN ISO 20345:2022
ISO 20345:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021

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
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
© ISO 2021 – All rights reserved
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SIST EN ISO 20345:2022
ISO 20345:2021(E)
Contents Page

Foreword ..........................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ..................................................................................................................................................................................... 1

3 Terms and definitions .................................................................................................................................................................................... 1

4 Classification and designs .......................................................................................................................................................................... 8

5 Basic requirements for safety footwear ..................................................................................................................................... 9

5.1 General ........................................................................................................................................................................................................... 9

5.2 Design .......................................................................................................................................................................................................... 12

5.2.1 General .....................................................................................................................................................................................12

5.2.2 Height of upper ..................................................................................................................................................................12

5.2.3 Heel area ................................................................................................................................................................................. 12

5.3 Whole footwear .................................................................................................................................................................................. 13

5.3.1 Constructional performance ................................................................................................................................ 13

5.3.2 Toe protection .................................................................................................................................................................... 13

5.3.3 Leak proofness .................................................................................................................................................................. 15

5.3.4 Specific ergonomic features .................................................................................................................................. 15

5.3.5 Slip resistance .................................................................................................................................................................... 15

5.3.6 Innocuousness ................................................................................................................................................................... 16

5.3.7 Seam strength .................................................................................................................................................................... 16

5.4 Upper ............................................................................................................................................................................................................ 16

5.4.1 General ..................................................................................................................................................................................... 16

5.4.2 Thickness ............................................................................................................................................................................... 17

5.4.3 Tear strength ...................................................................................................................................................................... 17

5.4.4 Tensile properties ........................................................................................................................................................... 18

5.4.5 Flexing resistance .......................................................................................................................................................... 18

5.4.6 Water vapour permeability and coefficient ............................................................................................ 18

5.4.7 Resistance to hydrolysis ........................................................................................................................................... 18

5.5 Lining ........................................................................................................................................................................................................... 19

5.5.1 General ..................................................................................................................................................................................... 19

5.5.2 Tear strength ...................................................................................................................................................................... 19

5.5.3 Abrasion resistance ...................................................................................................................................................... 19

5.5.4 Water vapour permeability and coefficient ............................................................................................ 19

5.6 Tongue ......................................................................................................................................................................................................... 19

5.6.1 General ..................................................................................................................................................................................... 19

5.6.2 Tear strength ...................................................................................................................................................................... 20

5.7 Insole, insock and footbed .........................................................................................................................................................20

5.7.1 Thickness ............................................................................................................................................................................... 20

5.7.2 Water permeability ....................................................................................................................................................... 20

5.7.3 Water absorption and desorption .................................................................................................................... 20

5.7.4 Abrasion resistance ......................................................................................................................................................20

5.8 Outsole ........................................................................................................................................................................................................ 20

5.8.1 General .....................................................................................................................................................................................20

5.8.2 Design ........................................................................................................................................................................................ 21

5.8.3 Tear strength ...................................................................................................................................................................... 21

5.8.4 Abrasion resistance ...................................................................................................................................................... 21

5.8.5 Flexing resistance ..........................................................................................................................................................22

5.8.6 Resistance to hydrolysis ........................................................................................................................................... 22

5.8.7 Interlayer bond strength .......................................................................................................................................... 22

6 Additional requirements for safety footwear ....................................................................................................................22

6.1 General ........................................................................................................................................................................................................22

6.2 Whole footwear .................................................................................................................................................................................. 24

6.2.1 Perforation resistance ................................................................................................................................................ 24

iii
© ISO 2021 – All rights reserved
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SIST EN ISO 20345:2022
ISO 20345:2021(E)

6.2.2 Electrical properties .................................................................................................................................................... 26

6.2.3 Resistance to inimical environments ........................................................................................................... 26

6.2.4 Energy absorption of seat region ..................................................................................................................... 26

6.2.5 Water resistance .............................................................................................................................................................. 27

6.2.6 Metatarsal protection ................................................................................................................................................. 27

6.2.7 Ankle protection .............................................................................................................................................................. 27

6.2.8 Cut resistance .....................................................................................................................................................................28

6.2.9 Scuff cap abrasion ..........................................................................................................................................................28

6.2.10 Slip resistance ....................................................................................................................................................................28

6.3 Upper — Water penetration and absorption ............................................................................................................29

6.4 Outsole ........................................................................................................................................................................................................29

6.4.1 Resistance to hot contact .........................................................................................................................................29

6.4.2 Resistance to fuel oil ....................................................................................................................................................29

6.4.3 Ladder grip ...........................................................................................................................................................................29

7 Marking ........................................................................................................................................... ............................................................................29

8 Manufacturer’s instructions and information ..................................................................................................................31

8.1 General ........................................................................................................................................................................................................ 31

8.2 Electrical properties....................................................................................................................................................................... 31

8.2.1 Partially conductive footwear ............................................................................................................................. 31

8.2.2 Antistatic footwear ....................................................................................................................................................... 32

8.3 Insocks ........................................................................................................................................................................................................ 33

8.4 Perforation resistance .................................................................................................................................................................. 33

8.5 Date of obsolescence ....................................................................................................................................................................... 33

Annex A (normative) Customized safety footwear (safety footwear adapted to fit an

individual user or a single unit to fit an individual user) .....................................................................................34

Annex B (informative) Assessment of the footwear by the wearer .................................................................................38

Annex C (informative) Slip resistance.............................................................................................................................................................40

Bibliography .............................................................................................................................................................................................................................43

© ISO 2021 – All rights reserved
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SIST EN ISO 20345:2022
ISO 20345:2021(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.

ISO 20345 was prepared by the European Committee for Standardization (CEN) Technical Committee

CEN/TC 161, Foot and leg protectors, in collaboration with Technical Committee ISO/TC 94, Personal

safety — Protective clothing and equipment, Subcommittee SC 3, Foot protection, in accordance with the

Agreement on technical cooperation between ISO and CEN (Vienna Agreement).

This third edition cancels and replaces the second edition (ISO 20345:2011), which has been technically

revised. The main changes compared to the previous edition are as follows:
— revision of the terms and definitions in Clause 3;
— Figure 1 to Figure 4 revised;
— Tables 1, 2 and 3 revised;
— heel area defined (5.2.3);

— toe protection, depending on ISO 22568-1 and ISO 22568-2, exchanging EN 12568:2010;

— requirement on slip resistance revised (5.3.5 and 6.2.10); marking “SRA, SRB and SRC” deleted;

marking “SR” and “Ø” introduced;

— pH value and chromium VI tests added in 5.3.6; former separate clauses under upper, lining, tongue

and insole/insock deleted;
— requirement for seam strength of hybrid footwear added (5.3.7);
— requirement for upper materials not fulfilling WVP explained (5.4.6);
— abrasion of insoles revised (5.7.4);
— outsole requirements revised (5.8);
— outsole thickness revised (5.8.2.1);
© ISO 2021 – All rights reserved
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SIST EN ISO 20345:2022
ISO 20345:2021(E)
— flexing resistance of outsole clarified (5.8.5);

— perforation resistant insert, depending on ISO 22568-3 and ISO 22568-4, exchanging EN 12568:2010;

— tolerance added (6.2.3.1);

— former Annex A Hybrid footwear included in the general text (Table 2, 5.4.1.2);

— optional requirement of metatarsal protection revised (6.2.6);
— optional requirement on ankle protection clarified (6.2.7);
— optional requirement for “SC” scuff cap abrasion added (6.2.9);

— water penetration and absorption, symbol “WRU” deleted, symbol “WPA” introduced;

— optional requirement for “LG” Ladder grip of outsoles added (6.4.3);
— marking revised (Table 16 and Table 20);
— two new categories added, S6 and S7 (Table 20);
— information on obsolescence date added (8.5);
— Annex A with requirements for customized safety footwear added;
— Annex B added;
— Annex C added;
— requirement for electrically insulating footwear (EN 50321) deleted.

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.
© ISO 2021 – All rights reserved
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SIST EN ISO 20345:2022
INTERNATIONAL STANDARD ISO 20345:2021(E)
Personal protective equipment — Safety footwear
1 Scope

This document specifies basic and additional (optional) requirements for safety footwear used for

general purpose. It includes, for example, mechanical risks, slip resistance, thermal risks, ergonomic

behaviour. It also specifies requirements for safety footwear equipped with customized insocks,

customized safety footwear or indiv
...

SLOVENSKI STANDARD
oSIST prEN ISO 20345:2020
01-junij-2020
Osebna varovalna oprema - Zaščitna obutev (ISO/DIS 20345:2020)
Personal protective equipment - Safety footwear (ISO/DIS 20345:2020)
Persönliche Schutzausrüstung - Sicherheitsschuhe (ISO/DIS 20345:2020)

Équipement de protection individuelle - Chaussures de sécurité (ISO/DIS 20345:2020)

Ta slovenski standard je istoveten z: prEN ISO 20345
ICS:
13.340.50 Varovanje nog in stopal Leg and foot protection
oSIST prEN ISO 20345:2020 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN ISO 20345:2020
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oSIST prEN ISO 20345:2020
DRAFT INTERNATIONAL STANDARD
ISO/DIS 20345
ISO/TC 94/SC 3 Secretariat: BSI
Voting begins on: Voting terminates on:
2020-04-13 2020-07-06
Personal protective equipment — Safety footwear
Équipement de protection individuelle — Chaussures de sécurité
ICS: 13.340.50
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 20345:2020(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 2020
---------------------- Page: 3 ----------------------
oSIST prEN ISO 20345:2020
ISO/DIS 20345:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© 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.
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 2020 – All rights reserved
---------------------- Page: 4 ----------------------
oSIST prEN ISO 20345:2020
ISO/DIS 20345:2020(E)
Contents Page

Foreword ..........................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Classification and designs ........................................................................................................................................................................... 8

5 Basic requirements for safety footwear ....................................................................................................................................... 9

5.1 General ........................................................................................................................................................................................................... 9

5.2 Design ..........................................................................................................................................................................................................12

5.2.1 General...................................................................................................................................................................................12

5.2.2 Height of upper ..............................................................................................................................................................12

5.2.3 Heel area ..............................................................................................................................................................................12

5.3 Whole footwear ...................................................................................................................................................................................12

5.3.1 Manufacturing performance ...............................................................................................................................12

5.3.2 Toe protection .................................................................................................................................................................13

5.3.3 Leakproofness .................................................................................................................................................................14

5.3.4 Specific ergonomic features ................................................................................................................................14

5.3.5 Slip resistance .................................................................................................................................................................14

5.3.6 Innocuousness ................................................................................................................................................................15

5.3.7 Seam Strength .................................................................................................................................................................15

5.4 Upper ............................................................................................................................................................................................................15

5.4.1 General...................................................................................................................................................................................15

5.4.2 Thickness .............................................................................................................................................................................16

5.4.3 Tear strength ....................................................................................................................................................................17

5.4.4 Tensile properties ........................................................................................................................................................17

5.4.5 Flexing resistance ...................................................................... ...................................................................................17

5.4.6 Water vapour permeability and coefficient ...........................................................................................17

5.4.7 pH value ................................................................................................................................................................................18

5.4.8 Hydrolysis ...........................................................................................................................................................................18

5.4.9 Chromium VI content ................................................................................................................................................18

5.5 Lining ............................................................................................................................................................................................................18

5.5.1 Tear strength ....................................................................................................................................................................18

5.5.2 Abrasion resistance ....................................................................................................................................................18

5.5.3 Water vapour permeability and coefficient ...........................................................................................18

5.5.4 pH value ................................................................................................................................................................................19

5.5.5 Chromium VI content ................................................................................................................................................19

5.6 Tongue .........................................................................................................................................................................................................19

5.6.1 Tear strength ....................................................................................................................................................................19

5.6.2 pH value ................................................................................................................................................................................19

5.6.3 Chromium VI content ................................................................................................................................................19

5.7 Insole and insock ......... .......................................................................................................................................................................19

5.7.1 Thickness .............................................................................................................................................................................19

5.7.2 pH value ................................................................................................................................................................................19

5.7.3 Water permeability .....................................................................................................................................................19

5.7.4 Water absorption and desorption..................................................................................................................20

5.7.5 Abrasion resistance ....................................................................................................................................................20

5.7.6 Chromium VI content ................................................................................................................................................20

5.8 Outsole ........................................................................................................................................................................................................20

5.8.1 Design .....................................................................................................................................................................................20

5.8.2 Tear strength ....................................................................................................................................................................21

5.8.3 Abrasion resistance ....................................................................................................................................................21

5.8.4 Flexing resistance ...................................................................... ...................................................................................21

5.8.5 Hydrolysis ...........................................................................................................................................................................21

5.8.6 Interlayer bond strength ........................................................................................................................................21

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6 Additional requirements for safety footwear .....................................................................................................................22

6.1 General ........................................................................................................................................................................................................22

6.2 Whole footwear ...................................................................................................................................................................................22

6.2.1 Perforation resistance ..............................................................................................................................................22

6.2.2 Electrical properties ..................................................................................................................................................24

6.2.3 Resistance to inimical environments ..........................................................................................................25

6.2.4 Energy absorption of seat region ...................................................................................................................25

6.2.5 Water resistance .................. .................................................... ......................................................................................25

6.2.6 Metatarsal protection ...............................................................................................................................................25

6.2.7 Ankle protection ............................................................................................................................................................26

6.2.8 Cut resistance ..................................................................................................................................................................26

6.2.9 Scuff caps .............................................................................................................................................................................27

6.2.10 Slip resistance .................................................................................................................................................................27

6.3 Upper — Water penetration and absorption.............................................................................................................27

6.4 Outsole ........................................................................................................................................................................................................28

6.4.1 Resistance to hot contact .......................................................................................................................................28

6.4.2 Resistance to fuel oil ..................................................................................................................................................28

6.4.3 Ladder Grip ........................................................................................................................................................................28

7 Marking .......................................................................................................................................................................................................................28

8 Information to be supplied .....................................................................................................................................................................29

8.1 General ........................................................................................................................................................................................................29

8.2 Electrical properties ........................................................................................................................................................................30

8.2.1 Dissipative footwear ..................................................................................................................................................30

8.2.2 Antistatic footwear .....................................................................................................................................................30

8.3 Insocks ........................................................................................................................................................................................................31

8.4 Perforation resistance ......... ...........................................................................................................................................................31

8.5 Obsolescence deadline ..................................................................................................................................................................32

Annex A (normative) Customized safety footwear (adapted to fit an individual user or a

single unit to fit an individual user) ..............................................................................................................................................33

Annex B (informative) Assessment of the footwear by the wearer ...................................................................................37

Annex C (informative) Slip Resistance .............................................................................................................................................................39

Annex ZA (informative) Relationship between this European Standard and the essential

requirements of PPE Regulation 2016/425 aimed to be covered ..................................................................42

Bibliography .............................................................................................................................................................................................................................44

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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.

ISO 20345 was prepared by the European Committee for Standardization (CEN) Technical Committee

CEN/TC 161, Foot and leg protectors, in collaboration with Technical Committee ISO/TC 94, Personal

safety — Protective clothing and equipment, Subcommittee SC 3, Foot protection, in accordance with the

Agreement on technical cooperation between ISO and CEN (Vienna Agreement).

This third edition cancels and replaces the second edition (ISO 20345:2011), which has been technically

revised.
Changes between this edition and the 2011 version are as follows:
— revision of terms (3.);
— Figure 1 to Figure 4 revised;
— Table 1, Table 2 and Table 3 revised;
— heel area defined (5.2.3);

— toe protection, depending on ISO 22568-1 and ISO 22568-2, exchanging EN 12568:2010;

— requirement on slip resistance revised (5.3.5 and 6.2.10); marking “SR” introduced;

— requirement for seam strength of hybrid footwear added (5.3.7);
— requirement for upper materials not fulfilling WVP explained (5.4.6);
— abrasion of insoles revised (5.7.5);
— outsole requirements revised (5.8);
— outsole thickness revised (5.8.1.1);
— flexing resistance of outsole clarified (5.8.4);
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— perforation resistant insert, depending on ISO 22568-3 and ISO 22568-4, exchanging EN 12568:2010;

— tolerance added (6.2.3.1);

— former Annex A Hybrid Footwear included in the general text (Table 2, 6.2.5.2, Table 16);

— optional requirement of metatarsal protection revised (6.2.6);
— optional requirement on ankle protection clarified (6.2.7);
— optional requirement for “SC” scuff caps added (6.2.9);
— optional requirement for “LG” Ladder grip of outsoles added (6.4.3);
— marking revised (Table 16 and Table 21);
— information on obsolescence date added (8.5);
— normative Annex A with requirements for customized safety footwear added;
— informative Annex B assessment of the footwear by the wearer added;
— informative Annex C Slip resistance added;
— requirement for electrically insulating footwear (EN 50321) deleted;
— Annex ZA revised.

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.
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oSIST prEN ISO 20345:2020
DRAFT INTERNATIONAL STANDARD ISO/DIS 20345:2020(E)
Personal protective equipment — Safety footwear
1 Scope

This International Standard specifies basic and additional (optional) requirements for safety footwear

used for general purpose. It includes, for example, mechanical risks, slip resistance, thermal risks,

ergonomic behaviour. It also specifies requirements for orthopaedic customized or individual

manufactured orthopaedic safety footwear. This standard does not cover the property of high visibility

because of interaction with the clothing (e.g. trousers cover the footwear) and work area conditions

(e.g. dirt, mud).

Special risks are covered by complementary job-related standards (e.g. footwear for firefighters,

electrical insulating footwear, protection against chain saw injuries, protection against chemicals and

molten metal splash, protection for motorcycle riders).
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 20344:2021, Personal protective equipment — Test methods for footwear

ISO 22568-1:2019, Foot and leg protectors — Requirements and test methods for footwear components —

Part 1: Metallic toecaps

ISO 22568-2:2019, Foot and leg protectors — Requirements and test methods for footwear component —

Part 2: Non-metallic toecaps

ISO 22568-3:2019, Foot and leg protectors — Requirements and test methods for footwear components —

Part 3: Metallic perforation resistant inserts

ISO 22568-4:2019, Foot and leg protectors — Requirements and test methods for footwear components —

Part 4: Non-metallic perforation resistant inserts

ISO 21064:2017, Prosthetics and orthotics — Foot orthotics — Uses, functions classification and description

3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

Note 1 to entry The component parts of footwear are illustrated in Figure 1, Figure 2 and Figure 3.

Note 2 to entry Further terms and definitions can be found in ISO 19952:2005.

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/
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3.1
safety footwear

footwear incorporating safety features to protect the wearer from injuries that could arise through

accidents

Note 1 to entry: Items of safety footwear are fitted with toecaps designed to give protection against impact of at

least 200 J and against compression at least 15 kN.
3.2
upper

part or parts of a footwear that cover the toes, the top of the foot, the sides of the foot, and optionally

the back of the heel; it is attached to the outsole of a footwear
3.3
leather
hide or skin tanned to be imperishable
3.3.1
leather split

flesh or middle part of a hide or skin, obtained by splitting a thick leather, which is tanned to be

imperishable
3.4
rubber
vulcanized elastomers
3.5
polymeric materials

large molecules composed of repeating structural units (monomers) typically connected by chemical bond

EXAMPLE Polyurethane (PU) or polyvinylchloride (PVC).
3.6
insole

non-removable component used to form the base of the shoe to which the upper is usually attached

during lasting
3.7
insock

removable or non-removable footwear component used to cover completely the insole

3.7.1
seat sock

removable or non-removable footwear component used to cover the insole in the heel area footbed

3.7.2
footbed

removable or non-removable footwear component used to cover completely the insole; shaped according

to the sole of the foot

Note 1 to entry: “Non-removable” means that the component cannot be removed without any damage.

Note 2 to entry: “Removable” means, that the component can be removed, but it must be placed in the footwear

while wearing to maintain all safety features.
3.8
lining
material covering the inner surface of the upper
Note 1 to entry: The wearer’s foot is in direct contact with the lining.
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Note 2 to entry: Where an upper is split at the forepart to house the toecap, or if an external piece of material is

stitched to the upper to form a pocket to house the toecap, the material under the toecap acts as a lining.

3.9
cleat
protruding part of the outer surface of the outsole
3.10
rigid outsole
outsole, which cannot be bent through an angle of 45° under a load of 30 N
3.11
perforation-resistant insert

Component, placed in the outsole complex or used as an insole simultaneously in order to provide

protection against perforation
3.12
safety toecap

component, placed in the footwear to protect the toes of the wearer from impacts and compression

3.13
scuff caps

abrasion resistant material or component to protect against scuff of the upper external toe region

3.14
heel area
counter (stiffener) area, rear part of the footwear
3.15
dissipative footwear

footwear with low resistance between the wearer and the ground, able to dissipate some static

electricity
3.16
antistatic footwear

Footwear maintaining some resistance between the wearer and the ground, able to dissipate some

static electricity
3.17
fuel oil
aliphatic hydrocarbon constituent of petroleum
3.18
specific job-related footwear
safety footwear relating to a specific profession

EXAMPLE Footwear for firefighters; footwear with resistance to chain saw cutting.

3.19
customized safety footwear
(adapted to fit an individual user or a single unit to fit an individual user)

covering all individual orthotic footwear according to ISO 21064:2017, 3.2 and other specific conditions

of a foot. They integrate in their design the recipient’s own physiognomy and the specific arrangements

aimed at modifying, correcting, compensating, curing, preventing, relieving a pathology, e.g.

overweight, diabetes, hyperhidrosis …
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...

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