Eye and face protection - Guidance on selection, use and maintenance (ISO 19734:2021)

This document gives guidance on the control of eye and face hazards including physical, mechanical, chemical, optical radiation and biological and the selection, use and maintenance of eye and face protectors.
This document applies to:
— Occupational use
— Non-occupational use including around the home, leisure activities and hobbies
— Schools, educational and research establishments
This document does not apply to eye and face protection for:
— ionizing radiation;
— low frequency radio waves
— microwaves
— sports or vehicular usage.
NOTE See the ISO 18527 series for advice about application to sports.
Brief advice on protection when using lasers is included but for detailed advice, see IEC 60825-14.
This standard is neither a whole nor partial substitute for risk assessment which is an essential part of any eye and face protection programme

Augen- und Gesichtsschutz - Leitfaden zur Auswahl, Anwendung und Instandhaltung (ISO 19734:2021)

Dieses Dokument enthält einen Leitfaden für Hersteller und Anwendern zur Kontrolle von Gefährdungen für Augen und Gesicht, einschließlich physikalischen, mechanischen, chemischen, optischer Strahlung und biologischen sowie zur Auswahl, Anwendung und Instandhaltung von Augen- und Gesichtsschutzgeräten.
Dieses Dokument ist anzuwenden für
- berufliche Anwendung,
- Aufgaben, die ähnlich wie in einem Beruf, aber nicht am Arbeitsplatz ausgeführt werden, z. B. „Do-it-yourself“, und,
- Schulen, Bildungs- und Forschungseinrichtungen.
Dieses Dokument ist nicht anzuwenden für den Augen- und Gesichtsschutz für
- ionisierende Strahlung,
- Niedrigfrequenz-Funkwellen,
- Mikrowellen,
- Sport- oder Fahrzeuganwendung, und
- Sonnenbrillen für den allgemeinen (nicht beruflichen) Gebrauch, siehe ISO 12312-1
ANMERKUNG Die ISO 18527 (alle Teile) legt Anforderungen an für Augenschutzgeräten zur Anwendung im Sport fest.
Kürzere Hinweise zum Schutz bei der Anwendung von Lasern sind enthalten, für ausführliche Hinweise siehe jedoch IEC/TR 60825 14.
Dieses Dokument ist weder ein vollständiger noch ein teilweiser Ersatz für die Risikobewertung, die ein wesentlicher Bestandteil jedes Augen- und Gesichtsschutzprogramms ist.
Obwohl dieses Dokument verfasst wurde, um Herstellern und Anwendern zu helfen, sind alle Empfehlungen in diesem Dokument nur als Leitfaden zu verstehen und nicht als Ersatz für nationale gesetzliche Anforderungen gedacht. Die Risikobeurteilung liegt in der alleinigen Verantwortung des Arbeitsgebers und nicht des PSA-Herstellers oder seines Bevollmächtigten.

Protection des yeux et du visage - Lignes directrices pour le choix, l’utilisation et l’entretien (ISO 19734:2021)

Varovanje oči in obraza - Navodilo za izbiro, uporabo in vzdrževanje (ISO 19734:2021)

General Information

Status
Published
Public Enquiry End Date
19-May-2020
Publication Date
24-May-2021
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
30-Mar-2021
Due Date
04-Jun-2021
Completion Date
25-May-2021

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SLOVENSKI STANDARD
SIST EN ISO 19734:2021
01-julij-2021
Varovanje oči in obraza - Navodilo za izbiro, uporabo in vzdrževanje (ISO
19734:2021)
Eye and face protection - Guidance on selection, use and maintenance (ISO
19734:2021)
Augen- und Gesichtsschutz - Leitfaden zur Auswahl, Anwendung und Instandhaltung
(ISO 19734:2021)

Protection des yeux et du visage - Lignes directrices pour le choix, l’utilisation et

l’entretien (ISO 19734:2021)
Ta slovenski standard je istoveten z: EN ISO 19734:2021
ICS:
13.340.20 Varovalna oprema za glavo Head protective equipment
SIST EN ISO 19734:2021 en

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

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SIST EN ISO 19734:2021
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SIST EN ISO 19734:2021
EN ISO 19734
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2021
EUROPÄISCHE NORM
ICS 13.340.20
English Version
Eye and face protection - Guidance on selection, use and
maintenance (ISO 19734:2021)

Protection des yeux et du visage - Lignes directrices Augen- und Gesichtsschutz - Leitfaden zur Auswahl,

pour le choix, l'utilisation et l'entretien (ISO Anwendung und Instandhaltung (ISO 19734:2021)

19734:2021)
This European Standard was approved by CEN on 2 March 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

© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 19734:2021 E

worldwide for CEN national Members.
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SIST EN ISO 19734:2021
EN ISO 19734:2021 (E)
Contents Page

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

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SIST EN ISO 19734:2021
EN ISO 19734:2021 (E)
European foreword

This document (EN ISO 19734:2021) has been prepared by Technical Committee ISO/TC 94 "Personal

safety -- Personal protective equipment" in collaboration with Technical Committee CEN/TC 85 “Eye

protective equipment” the secretariat of which is held by AFNOR.

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 2021, and conflicting national standards

shall be withdrawn at the latest by September 2021.

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.

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 19734:2021 has been approved by CEN as EN ISO 19734:2021 without any modification.

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SIST EN ISO 19734:2021
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SIST EN ISO 19734:2021
INTERNATIONAL ISO
STANDARD 19734
First edition
2021-02
Eye and face protection — Guidance
on selection, use and maintenance
Protection des yeux et du visage — Lignes directrices pour le choix,
l’utilisation et l’entretien
Reference number
ISO 19734:2021(E)
ISO 2021
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SIST EN ISO 19734:2021
ISO 19734:2021(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
ii © ISO 2021 – All rights reserved
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SIST EN ISO 19734:2021
ISO 19734:2021(E)
Contents Page

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

Introduction ................................................................................................................................................................................................................................vi

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

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

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

4 General ............................................................................................................................................................................................................................ 2

4.1 Structure of the human eye .......................................................................................................................................................... 2

4.2 Hazards and risks to the eye and face ................................................................................................................................. 3

4.2.1 Surrounding structures of the eye .................................................................................................................... 3

4.2.2 Peri-orbital skin ................................................................................................................................................................ 4

4.2.3 Tears ........................................................................................................................................................................................... 4

4.2.4 Cornea and conjunctiva ........................................................................................................................................... ... 4

4.2.5 Iris and lens .......................................................................................................................................................................... 4

4.2.6 Retina ......................................................................................................................................................................................... 5

4.2.7 Optic nerve ............................................................................................................................................................................ 5

4.2.8 Choroid and retinal pigment epithelium..................................................................................................... 5

4.3 The eye's defence system ............................................................................................................................................................... 5

4.4 Colour perception ................................................................................................................................................................................. 7

5 Hazards and their consequences ......................................................................................................................................................... 8

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

5.1.1 Mechanical hazards ....................................................................................................................................................... 8

5.1.2 Chemical hazards............................................................................................................................................................. 9

5.1.3 Radiation hazards ........................................................................................................................................................10

5.1.4 Biological hazards ........................................................................................................................................................11

5.1.5 Convection heat .............................................................................................................................................................12

5.2 Application specific hazards.....................................................................................................................................................12

5.2.1 Laser hazards ...................................................................................................................................................................12

5.2.2 Welding hazards ............................................................................................................................................................13

5.2.3 Electric arc hazards ....................................................................................................................................................14

5.2.4 Glass blowing hazards ..............................................................................................................................................14

6 Control of eye and face hazards .........................................................................................................................................................15

6.1 General ........................................................................................................................................................................................................15

6.2 Screens ........................................................................................................................................................................................................16

6.2.1 General...................................................................................................................................................................................16

6.2.2 Recommended materials for screens ..........................................................................................................17

6.2.3 Selection of light-transmitting screens and curtains for arc welding operations 17

6.2.4 Illumination of the work area ............................................................................................................................17

6.3 Exhaust systems ..................................................................................................................................................................................17

6.4 Other methods ......................................................................................................................................................................................17

7 Selection and use of personal protective equipment (PPE) .................................................................................18

7.1 General ........................................................................................................................................................................................................18

7.2 Types of eye and face protectors ..........................................................................................................................................18

7.2.1 General...................................................................................................................................................................................18

7.2.2 Selection process ..........................................................................................................................................................20

7.2.3 Eye and face protection for those requiring vision correction .............................................26

7.2.4 Material choice ...............................................................................................................................................................27

7.2.5 Comfort, vision and fit ..............................................................................................................................................28

7.2.6 Application based selection.................................................................................................................................29

7.3 Checking the fit ....................................................................................................................................................................................39

7.3.1 Fit, comfort and compliance ...............................................................................................................................39

7.3.2 Ensuring compliance with an eye protection programme .......................................................40

© ISO 2021 – All rights reserved iii
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SIST EN ISO 19734:2021
ISO 19734:2021(E)

8 Care and maintenance .................................................................................................................................................................................40

8.1 Hygiene and cleaning .....................................................................................................................................................................40

8.2 Replacement of eye protectors...............................................................................................................................................41

9 Compatibility .........................................................................................................................................................................................................41

9.1 General ........................................................................................................................................................................................................41

9.2 Eye protectors and respirators ..............................................................................................................................................42

9.3 Eye protectors and protective earmuffs .........................................................................................................................42

9.4 Helmet mounted face shields ..................................................................................................................................................42

9.5 Face shields and respirators .....................................................................................................................................................42

9.6 Eyewear with half-mask respirators .................................................................................................................................42

10 Eye and face protector marking .........................................................................................................................................................42

11 Special requirements for working conditions (e.g. hot, humid, dusty, fog, abrasion) ..............43

Annex A (informative) Electric arc protective equipment combinations ....................................................................45

Annex B (informative) Marking of laser eye protectors ................................................................................................................47

Bibliography .............................................................................................................................................................................................................................49

iv © ISO 2021 – All rights reserved
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SIST EN ISO 19734:2021
ISO 19734:2021(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.

This document was prepared by Technical Committee ISO/TC 94 Personal safety — Personal protective

equipment, Subcommittee SC 6 Eye and face protection, in collaboration with the European Committee

for Standardization (CEN) Technical Committee CEN/TC 85, Eye-protective equipment, in accordance

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

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www .iso .org/ members .html.
© ISO 2021 – All rights reserved v
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SIST EN ISO 19734:2021
ISO 19734:2021(E)
Introduction

This document is intended to provide guidance on how to select, use and maintain eye and face

protectors. A workplace eye and face safety programme should be introduced and a hierarchy of control

followed where workers are exposed to a recognised risk of injury to the eyes and/or face. Examples of

areas and processes where eye and/or face hazards may exist are shown in Tables 2, 4 and 5.

The aim of an eye and face safety programme is to protect the eyes and face of the worker through

the process of elimination or control of hazards and, where necessary, the wearing of appropriate

protection.

While responsibility for the successful implementation of an eye and face safety programme rests with

senior management, every effort is required to secure the participation and involvement of employees

or their representatives in all phases of the programme. Experience has shown that programmes

lacking this involvement have less chance of success.

A critical examination of working conditions, particularly lighting, layout and planning of buildings and

processes, forms a necessary part of an eye and face safety programme.

Selection of a suitable programme may be assigned to safety personnel within the organisation or

advice may be sought from outside sources. Elements that have been found in successful eye and face

safety programmes include the following:
a) An assessment of hazards.
b) Determination of workplace hazard areas.
c) Elimination or confinement of hazards (where possible).
d) Vision screening.

e) Referral for optometric, ophthalmological examination or both, where necessary.

f) The universal wearing of suitable eye and face protectors for those persons at risk.

g) Educational campaigns on eye safety.

Eye and face protectors are items of personal protective equipment (PPE) intended to prevent the

harmful effects that physical (e.g. flying particles, dust, splashing and molten materials), optical (e.g.

solar and artificial radiation and high intensity radiation generated during operations such as welding

and furnace work), chemical (e.g. pressurised materials, harmful gases, vapours and aerosols) and

biological hazards may have to the eye and face.

For eye and face protectors to be effective they should be used at all times when the user is in a

potentially hazardous environment. When selecting eye and face protectors, attention should be given

to factors influencing comfort and user preference.

Those involved in selling eye and face protectors to the general public for use in non-workplace settings

should adhere to the principles and guidance in this standard to ensure that users of personal protective

equipment are fully informed about making the safest choice for a particular task and environment

as well as how to use the protective equipment in the safest manner. This should also apply to those

businesses that hire out power equipment. Safety guidance based on this document should be provided

to prospective customers to ensure that they select and use the correct protective equipment to reduce

the risk of eye and face injury.
vi © ISO 2021 – All rights reserved
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SIST EN ISO 19734:2021
INTERNATIONAL STANDARD ISO 19734:2021(E)
Eye and face protection — Guidance on selection, use and
maintenance
1 Scope

This document gives guidance to specifiers and users on the control of eye and face hazards including

physical, mechanical, chemical, optical radiation and biological and on the selection, use and

maintenance of eye and face protectors.
This document applies to
— occupational use,

— tasks that are performed similarly to those in an occupation but not in the workplace, e.g. "do-it-

yourself", and
— schools, educational and research establishments.
This document does not apply to eye and face protection for
— ionizing radiation,
— low frequency radio waves,
— microwaves,
— sports or vehicular usage, and
— sunglasses for general (not occupational) use – see ISO 12312-1.

NOTE The ISO 18527 (all parts) sets requirements for eye protectors for some sports.

Brief advice on protection when using lasers is included but for detailed advice, see IEC/TR 60825-14.

This document is neither a whole nor partial substitute for risk assessment, which is an essential part

of any eye and face protection programme.

Although this document has been written to help specifiers and users, any recommendations in this

document are to be interpreted as guidance only and not intended to replace any national regulatory

requirements. Risk assessment is the sole responsibility of the employer and not the PPE manufacturer

or its authorised representative.
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 4007, Personal protective equipment — Eye and face protection — Vocabulary
3 Terms and definitions
1) 2)

For the purposes of this document, the terms and definitions given in ISO 4007 and the following apply .

1) The terms and definitions for risk and hazard have been included here for the reader's convenience.

2) The abbreviation PPE means personal protective equipment.
© ISO 2021 – All rights reserved 1
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SIST EN ISO 19734:2021
ISO 19734:2021(E)

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/

NOTE ISO/IEC Guide 51:2014, Clause 4, states: The term “safe” is often understood by the general public as

the state of being protected from all hazards. However, this is a misunderstanding: “safe” is rather the state of

being protected from recognized hazards that are likely to cause harm. Some level of risk is inherent in products

or systems. The use of the terms “safety” and “safe” as descriptive adjectives is avoided when they convey no

useful extra information. In addition, they are likely to be misinterpreted as an assurance of freedom from risk.

The recommended approach is to replace, wherever possible, the terms “safety” and “safe” with an indication of

the objective – for example, the phrase “protective spectacles” should be used in preference to “safety spectacles”.

3.1
hazard
potential source of harm
[SOURCE: ISO/IEC Guide 51:2014, 3.2]
3.2
risk

combination of the probability of occurrence of harm and the severity of that harm

Note 1 to entry: Note 1 to entry: The probability of occurrence includes the exposure to a hazardous situation,

the occurrence of a hazardous event and the possibility to avoid or limit the harm.

[SOURCE: ISO/IEC Guide 51:2014, 3.9]
4 General
4.1 Structure of the human eye
See Figure 1.
2 © ISO 2021 – All rights reserved
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SIST EN ISO 19734:2021
ISO 19734:2021(E)
Key
1 eyelid 8 vitreous chamber (filled with vitreous humour)
2 iris 9 crystalline lens
3 pupil 10 optic nerve
4 anterior Chamber (filled with aqueous humour) 11 macular region of retina
5 cornea 12 pigment epithelium and choroid
6 ciliary muscle 13 sclera
7 retina
Figure 1 — Outline of the human eye (cross section)

a) Light emitted, transmitted or reflected by an object in the field of vision travels toward the eyes.

b) Light passes through the CORNEA (transparent “front window” of the eye), which provides two-

thirds of the focusing power of the eye.

c) The PUPIL (the opening at the centre of the pigmented IRIS) changes size to vary the amount of

light that reaches the retina.
d) The CRYSTALLINE LENS provides the remaining focusing power of the eye.

e) The RETINA (rear inner lining of the eye that contains light-sensitive and image processing cells

and nerve fibres) converts light into neural signals. The MACULAR region is located near the centre

of the retina and is dense with photoreceptors; its function is to process central vision in fine detail.

f) The OPTIC NERVE is the collection of nerve fibres that carry these signals to the brain.

4.2 Hazards and risks to the eye and face
4.2.1 Surrounding structures of the eye

The structures surrounding the eye, including the eyelids, skin, muscles and the orbital bones are

susceptible to permanent damage. Objects of sufficient energy can cause bone fracture, contusions,

lacerations and penetration of these tissues. Damage to the muscles and bones around the eye can

result in a temporary or permanent disruption to binocular vision.
© ISO 2021 – All rights reserved 3
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SIST EN ISO 19734:2021
ISO 19734:2021(E)
4.2.2 Peri-orbital skin

The skin of the eyelids is thinner than the skin in the rest of the body and is therefore more susceptible

to physical dama
...

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