Personal protective equipment - Protective footwear (ISO 20346:2021)

This document specifies basic and additional (optional) requirements for protective footwear used for general purpose. It includes, for example, mechanical risks, slip resistance, thermal risks, ergonomic behaviour. It includes, for example, mechanical risks, slip resistance, thermal risks, ergonomic behaviour. It also specifies requirements for protective footwear equipped with customized insocks, customized protective footwear or individual manufactured customized protective 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).

Persönliche Schutzausrüstung - Schutzschuhe (ISO 20346:2021)

Dieses Dokument legt Grundanforderungen und (optionale) Zusatzanforderungen an Schutzschuhe für allgemeine Zwecke fest. Das schließt zum Beispiel mechanische Risiken, die Rutschhemmung, thermische Risiken und ergonomische Merkmale ein.N1  Es legt zudem Anforderungen an Schutzschuhe mit zugerichteten Einlegesohlen, zugerichtete Schutzschuhe oder individuell gefertigte zugerichtete Schutzschuhe 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 protection (ISO 20346:2021)

Le présent document spécifie des exigences fondamentales et additionnelles (optionnelles) relatives aux chaussures de protection d'usage général. Il inclut, par exemple, les risques mécaniques, la résistance au glissement, les risques thermiques et le comportement ergonomique. 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 protection munies de premières de propreté, les chaussures de protection personnalisées ou les chaussures de protection 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 - Varovalna obutev (ISO 20346:2021)

General Information

Status
Published
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
16-Mar-2022
Completion Date
16-Mar-2022

RELATIONS

Buy Standard

Standard
EN ISO 20346:2022
English language
54 pages
sale 10% off
Preview
sale 10% off
Preview
e-Library read for
1 day
Draft
prEN ISO 20346:2020
English language
49 pages
sale 10% off
Preview
sale 10% off
Preview
e-Library read for
1 day

Standards Content (sample)

SLOVENSKI STANDARD
SIST EN ISO 20346:2022
01-maj-2022
Nadomešča:
SIST EN ISO 20346:2014
Osebna varovalna oprema - Varovalna obutev (ISO 20346:2021)
Personal protective equipment - Protective footwear (ISO 20346:2021)
Persönliche Schutzausrüstung - Schutzschuhe (ISO 20346:2021)

Équipement de protection individuelle - Chaussures de protection (ISO 20346:2021)

Ta slovenski standard je istoveten z: EN ISO 20346:2022
ICS:
13.340.50 Varovanje nog in stopal Leg and foot protection
SIST EN ISO 20346:2022 en

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

---------------------- Page: 1 ----------------------
SIST EN ISO 20346:2022
---------------------- Page: 2 ----------------------
SIST EN ISO 20346:2022
EN ISO 20346
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2022
EUROPÄISCHE NORM
ICS 13.340.50 Supersedes EN ISO 20346:2014
English Version
Personal protective equipment - Protective footwear (ISO
20346:2021)

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

protection (ISO 20346:2021) 20346:2021)
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 20346:2022 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 20346:2022
EN ISO 20346:2022 (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 20346:2022
EN ISO 20346:2022 (E)
European foreword

This document (EN ISO 20346:2022) 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 20346:2014.

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 20346:2021 has been approved by CEN as EN ISO 20346:2022 without any modification.

---------------------- Page: 5 ----------------------
SIST EN ISO 20346:2022
EN ISO 20346:2022 (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 Clause(s)/sub-clause(s) of
REQUIREMENTS of REGULATION this EN ISO
Remarks/Notes
(EU) 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
1.2.1 Absence of inherent risks and 5.3.4
other nuisance factors
1.2.1.1 Suitable constituent materials 5.3.6,
1.2.1.2 Satisfactory surface condition of 5.3.4
all 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 5.3.4
morphology
5.3.1.2, 5.4.3, 5.4.4, 5.4.5, 5.5.2,
1.3.2 Lightness and strength
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 5.4.6, 5.5.4, 5.7.3
body to be protected
2.4 PPE subject to ageing Clause 7 and Clause 8
2.6 PPE for use in potentially 6.2.2.1; 6.2.2.2
explosive atmospheres
2.12 PPE bearing one or more 6.1 Table 16, Clause 7
---------------------- Page: 6 ----------------------
SIST EN ISO 20346:2022
EN ISO 20346:2022 (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 5.3.2.6, 6.2.6, 6.2.7
ejected objects and collisions of
parts of the body with an
obstacle
3.1.2.1 Prevention of falls due to 5.3.5, 5.8.2, 6.4.3, 6.2.10,
slipping
3.2 Protection against static 5.3.2.7, 6.2.4
compression of part of the body
3.3 Protection against mechanical 5.5.2, 5.8.3, 6.2.1, 6.2.8, 6.2.9
injuries
3.6 Protection against heat and/or 6.2.3.1; 6.4.1
fire
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.
---------------------- Page: 7 ----------------------
SIST EN ISO 20346:2022
---------------------- Page: 8 ----------------------
SIST EN ISO 20346:2022
INTERNATIONAL ISO
STANDARD 20346
Third edition
2021-12
Personal protective equipment —
Protective footwear
Équipement de protection individuelle — Chaussures de protection
Reference number
ISO 20346:2021(E)
© ISO 2021
---------------------- Page: 9 ----------------------
SIST EN ISO 20346:2022
ISO 20346:2021(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
---------------------- Page: 10 ----------------------
SIST EN ISO 20346:2022
ISO 20346:2021(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 protective 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 protective footwear ........................................................................................................22

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

6.2 Whole footwear .................................................................................................................................................................................. 23

6.2.1 Perforation resistance ................................................................................................................................................23

iii
© ISO 2021 – All rights reserved
---------------------- Page: 11 ----------------------
SIST EN ISO 20346:2022
ISO 20346:2021(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 .............................................................................................................................................................. 26

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 ............................................................................................................28

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 ..................................................................................................................30

8.1 General ........................................................................................................................................................................................................30

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

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

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

8.3 Insocks ........................................................................................................................................................................................................ 32

8.4 Perforation resistance .................................................................................................................................................................. 32

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

Annex A (normative) Customized protective footwear (protective 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
---------------------- Page: 12 ----------------------
SIST EN ISO 20346:2022
ISO 20346:2021(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 on the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following

URL: www.iso.org/iso/foreword.html.

ISO 20346 was prepared by the European Committee for Standardization (CEN) Technical Committee

CEN/TC 161, Foot and leg protectors, in collaboration with ISO 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 20346:2014), which has been technically

revised. The main changes compared to the previous edition are as follows:
— revision of the terms and definitions Clause 3;
— Figures 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
---------------------- Page: 13 ----------------------
SIST EN ISO 20346:2022
ISO 20346:2021(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 caps 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, P6 and P7 (Table 20);
— information on obsolescence date added (8.5);
— Annex A with requirements for customized protective footwear added;
— Annex B assessment of the footwear by the wearer added;
— Annex C Slip resistance 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
---------------------- Page: 14 ----------------------
SIST EN ISO 20346:2022
INTERNATIONAL STANDARD ISO 20346:2021(E)
Personal protective equipment — Protective footwear
1 Scope

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

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

behaviour. It includes, for example, mechanical risk
...

SLOVENSKI STANDARD
oSIST prEN ISO 20346:2020
01-junij-2020
Osebna varovalna oprema - Varovalna obutev (ISO/DIS 20346:2020)
Personal protective equipment - Protective footwear (ISO/DIS 20346:2020)
Persönliche Schutzausrüstung - Schutzschuhe (ISO/DIS 20346:2020)

Équipement de protection individuelle - Chaussures de protection (ISO/DIS 20346:2020)

Ta slovenski standard je istoveten z: prEN ISO 20346
ICS:
13.340.50 Varovanje nog in stopal Leg and foot protection
oSIST prEN ISO 20346:2020 en

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

---------------------- Page: 1 ----------------------
oSIST prEN ISO 20346:2020
---------------------- Page: 2 ----------------------
oSIST prEN ISO 20346:2020
DRAFT INTERNATIONAL STANDARD
ISO/DIS 20346
ISO/TC 94/SC 3 Secretariat: BSI
Voting begins on: Voting terminates on:
2020-04-13 2020-07-06
Personal protective equipment — Protective footwear
Équipement de protection individuelle — Chaussures de protection
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 20346:2020(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 20346:2020
ISO/DIS 20346:2020(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 20346:2020
ISO/DIS 20346:2020(E)
Contents Page

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

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

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

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

4 Classification and designs ........................................................................................................................................................................... 7

5 Basic requirements for protective footwear ........................................................................................................................... 8

5.1 General ........................................................................................................................................................................................................... 8

5.2 Design ..........................................................................................................................................................................................................10

5.2.1 General...................................................................................................................................................................................10

5.2.2 Height of upper ..............................................................................................................................................................10

5.2.3 Heel area ..............................................................................................................................................................................10

5.3 Whole footwear ...................................................................................................................................................................................11

5.3.1 Manufacturing performance ...............................................................................................................................11

5.3.2 Toe protection .................................................................................................................................................................11

5.3.3 Leakproofness .................................................................................................................................................................13

5.3.4 Specific ergonomic features ................................................................................................................................13

5.3.5 Slip resistance .................................................................................................................................................................13

5.3.6 Innocuousness ................................................................................................................................................................13

5.3.7 Seam Strength .................................................................................................................................................................13

5.4 Upper ............................................................................................................................................................................................................14

5.4.1 General...................................................................................................................................................................................14

5.4.2 Thickness .............................................................................................................................................................................15

5.4.3 Tear strength ....................................................................................................................................................................15

5.4.4 Tensile properties ........................................................................................................................................................15

5.4.5 Flexing resistance ...................................................................... ...................................................................................16

5.4.6 Water vapour permeability and coefficient ...........................................................................................16

5.4.7 pH value ................................................................................................................................................................................16

5.4.8 Hydrolysis ...........................................................................................................................................................................16

5.4.9 Chromium VI content ................................................................................................................................................16

5.5 Lining ............................................................................................................................................................................................................16

5.5.1 Tear strength ....................................................................................................................................................................16

5.5.2 Abrasion resistance ....................................................................................................................................................17

5.5.3 Water vapour permeability and coefficient ...........................................................................................17

5.5.4 ·H value..................................................................................................................................................................................17

5.5.5 Chromium VI content ................................................................................................................................................17

5.6 Tongue .........................................................................................................................................................................................................17

5.6.1 Tear strength ....................................................................................................................................................................17

5.6.2 pH value ................................................................................................................................................................................18

5.6.3 Chromium VI content ................................................................................................................................................18

5.7 Insole and insock ......... .......................................................................................................................................................................18

5.7.1 Thickness .............................................................................................................................................................................18

5.7.2 pH value ................................................................................................................................................................................18

5.7.3 Water permeability .....................................................................................................................................................18

5.7.4 Water absorption and desorption..................................................................................................................18

5.7.5 Abrasion resistance ....................................................................................................................................................18

5.7.6 Chromium VI content ................................................................................................................................................19

5.8 Outsole ........................................................................................................................................................................................................19

5.8.1 Design .....................................................................................................................................................................................19

5.8.2 Tear strength ....................................................................................................................................................................19

5.8.3 Abrasion resistance ....................................................................................................................................................20

5.8.4 Flexing resistance ...................................................................... ...................................................................................20

5.8.5 Hydrolysis ...........................................................................................................................................................................20

5.8.6 Interlayer bond strength ........................................................................................................................................20

© ISO 2020 – All rights reserved iii
---------------------- Page: 5 ----------------------
oSIST prEN ISO 20346:2020
ISO/DIS 20346:2020(E)

6 Additional requirements for protective footwear ..........................................................................................................20

6.1 General ........................................................................................................................................................................................................20

6.2 Whole footwear ...................................................................................................................................................................................21

6.2.1 Perforation resistance ..............................................................................................................................................21

6.2.2 Electrical properties ..................................................................................................................................................23

6.2.3 Resistance to inimical environments ..........................................................................................................23

6.2.4 Energy absorption of seat region ...................................................................................................................24

6.2.5 Water resistance .................. .................................................... ......................................................................................24

6.2.6 Metatarsal protection ...............................................................................................................................................24

6.2.7 Ankle protection ............................................................................................................................................................25

6.2.8 Cut resistance ..................................................................................................................................................................25

6.2.9 Scuff caps .............................................................................................................................................................................25

6.2.10 Slip resistance .................................................................................................................................................................26

6.3 Upper — Water penetration and absorption.............................................................................................................26

6.4 Outsole ........................................................................................................................................................................................................26

6.4.1 Resistance to hot contact .......................................................................................................................................26

6.4.2 Resistance to fuel oil ..................................................................................................................................................26

6.4.3 Ladder Grip ........................................................................................................................................................................27

7 Marking .......................................................................................................................................................................................................................27

8 Information to be supplied .....................................................................................................................................................................28

8.1 General ........................................................................................................................................................................................................28

8.2 Electrical properties ........................................................................................................................................................................29

8.2.1 Dissipative footwear ..................................................................................................................................................29

8.2.2 Antistatic footwear .....................................................................................................................................................29

8.3 Insocks ........................................................................................................................................................................................................30

8.4 Perforation resistance ......... ...........................................................................................................................................................30

8.5 Obsolescence deadline ..................................................................................................................................................................31

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

single unit to fit an individual user) ..............................................................................................................................................32

Annex B (informative) Assessment of the footwear by the wearer ...................................................................................36

Annex C (informative) Slip Resistance .............................................................................................................................................................38

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

requirements of PPE Regulation 2016/425 aimed to be covered ..................................................................41

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

iv © ISO 2020 – All rights reserved
---------------------- Page: 6 ----------------------
oSIST prEN ISO 20346:2020
ISO/DIS 20346:2020(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 on the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following

URL: www .iso .org/ iso/ foreword .html.

ISO 20346 was prepared by the European Committee for Standardization (CEN) Technical Committee

CEN/TC 161, Foot and leg protectors, in collaboration with ISO 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 20346:2014), which has been technically

revised.
Changes between this edition and the 2014 version are as follows:
— revision of terms (3.)
— Figures 1 to 4 revised
— Tables 1, 2 and 3 revised
— heel area defined (5.2.3)
— toe protection, depending on ISO 22568 Part 1 and 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)
© ISO 2020 – All rights reserved v
---------------------- Page: 7 ----------------------
oSIST prEN ISO 20346:2020
ISO/DIS 20346:2020(E)

— perforation resistant insert, depending on ISO 22568 Part 3 and 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 21)
— information on obsolescence date added (8.5)
— normative Annex A with requirements for customized protective 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
vi © ISO 2020 – All rights reserved
---------------------- Page: 8 ----------------------
oSIST prEN ISO 20346:2020
DRAFT INTERNATIONAL STANDARD ISO/DIS 20346:2020(E)
Personal protective equipment — Protective footwear
1 Scope

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

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

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

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

manufactured orthopaedic protective 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.

The following referenced documents are indispensable for the application of this document.

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.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— IEC Electropedia: available at http:// www .electropedia .org/
— ISO Online browsing platform: available at https:// www .iso .org/ obp

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

Note 2 to entry Further terms and definitions can be found in ISO 19952:2005.
© ISO 2020 – All rights reserved 1
---------------------- Page: 9 ----------------------
oSIST prEN ISO 20346:2020
ISO/DIS 20346:2020(E)
3.1
protective footwear

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

accidents

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

of at least 100 J and against compression of at least 10 kN.
3.2
upper

part or parts of a shoe that cover the toes, the top of the foot, the sides of the foot, and 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, seat sock, footbed

Insock: removable or non-removable footwear component used to cover completely the insoleSeat

sock: removable or non-removable footwear component used to cover the insole in the heelarea

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 protective 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.

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 sole
2 © ISO 2020 – All rights reserved
---------------------- Page: 10 ----------------------
oSIST prEN ISO 20346:2020
ISO/DIS 20346:2020(E)
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
protective toecap

built-in footwear component designed to protect the toes of the wearer from impacts and compression

3.13
scuff caps

abrasion resistant materials 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
occupational footwear relating to a specific profession
EXAMPLE Footwear for firefighters
3.19

customized protective 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.Several types of customized protective footwear and footwear

adaptions exist: Type 1 — equipped with customized insocksProtective footwear (complying

ISO 20345:2021) incorporating a cus
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.