prEN ISO 20346

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)

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

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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

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

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

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

Any trade name used in this document is information given for the convenience of users and does not

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

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

This third edition cancels and replaces the second edition (ISO 20346:2014), which has been technically

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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.

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

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

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

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

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

customized protective footwear (adapted to fit an individual user or a single unit to fit an

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