IEC 60825-1:1993

Safety of laser products - Part 1: Equipment classification, requirements and user's guide

Deals with the safety of laser products. Covers laser radiation in the wavelength range 180 nm to 1 mm, indicates safe working levels of laser radiation and introduces a system of classification of lasers and laser products according to their degree of hazard. Replaces IEC 60825 (1984) and IEC 60820 (1986). Has the status of a group safety publication in accordance with IEC Guide 104.

Sécurité des appareils à laser - Partie 1: Classification des matériels, prescriptions et guide de l'utilisateur

Traite de la sécurité des appareils à laser - Couvre le rayonnement laser dans la gamme de longueurs d'onde de 180 nm à 1 mm, indique les niveaux de rayonnement laser accessibles sans danger et introduit un système de classification des lasers et des appareils à laser compte tenu du degré de risque qu'ils présentent. Remplace la CEI 60825 (1984) et la CEI 60820 (1986). A le statut d'une publication groupée de sécurité conformément au Guide 104.

General Information

• Status: Published
• Publication Date: 29-Aug-2001
• ICS: 31.260 - Optoelectronics. Laser equipment
• Technical Committee: TC 76 - Optical radiation safety and laser equipment
• Drafting Committee: WG 1 - TC 76/WG 1
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 02-Apr-2007

Relations

• Amended By: IEC 60825-1:1993/AMD2:2001 - Amendment 2 - Safety of laser products - Part 1: Equipment classification, requirements and user's guide
• Effective Date: 05-Sep-2023
• Amended By: IEC 60825-1:1993/AMD1:1997 - Amendment 1 - Safety of laser products - Part 1: Equipment classification, requirements and user's guide
• Effective Date: 05-Sep-2023
• Revised: IEC 60825-1:2007 - Safety of laser products - Part 1: Equipment classification and requirements
• Effective Date: 05-Sep-2023

Standards Content (Sample)

INTERNATIONAL IEC
STANDARD 60825-1
Edition 1.2
2001-08
Edition 1:1993 consolidated with amendments 1:1997 and 2:2001
GROUP SAFETY PUBLICATION
Safety of laser products –
Part 1:
Equipment classification, requirements
and user's guide
Sécurité des appareils à laser –
Partie 1:
Classification des matériels, prescriptions
et guide de l'utilisateur
Reference number
Publication numbering
As from 1 January 1997 all IEC publications are issued with a designation in the

60000 series. For example, IEC 34-1 is now referred to as IEC 60034-1.

Consolidated editions
The IEC is now publishing consolidated versions of its publications. For example,

edition numbers 1.0, 1.1 and 1.2 refer, respectively, to the base publication, the

base publication incorporating amendment 1 and the base publication incorporating
amendments 1 and 2.
Further information on IEC publications
The technical content of IEC publications is kept under constant review by the IEC,
thus ensuring that the content reflects current technology. Information relating to
this publication, including its validity, is available in the IEC Catalogue of
publications (see below) in addition to new editions, amendments and corrigenda.
Information on the subjects under consideration and work in progress undertaken
by the technical committee which has prepared this publication, as well as the list
of publications issued, is also available from the following:
• IEC Web Site (www.iec.ch)
• Catalogue of IEC publications
The on-line catalogue on the IEC web site (www.iec.ch/catlg-e.htm) enables
you to search by a variety of criteria including text searches, technical
committees and date of publication. On-line information is also available on
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• IEC Just Published
This summary of recently issued publications (www.iec.ch/JP.htm) is also
available by email. Please contact the Customer Service Centre (see below) for
further information.
• Customer Service Centre
If you have any questions regarding this publication or need further assistance,
please contact the Customer Service Centre:
Email: [e-mail]
Tel: [phone]
Fax: [phone]
.
INTERNATIONAL IEC
STANDARD 60825-1
Edition 1.2
2001-08
Edition 1:1993 consolidated with amendments 1:1997 and 2:2001
GROUP SAFETY PUBLICATION
Safety of laser products –
Part 1:
Equipment classification, requirements
and user's guide
Sécurité des appareils à laser –
Partie 1:
Classification des matériels, prescriptions
et guide de l'utilisateur
 IEC 2001 – Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical,
including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission 3, rue de Varembé Geneva, Switzerland
Telefax: [phone] e-mail: [e-mail] IEC web site http://www.iec.ch
Commission Electrotechnique Internationale
PRICE CODE
XE
International Electrotechnical Commission
For price, see current catalogue

– 2 – 60825-1 © IEC:1993+A1:1997

+A2:2001(E)
CONTENTS
FOREWORD.6

SECTION ONE – GENERAL
1 Scope and object.8

1.1 Scope.8

1.2 Object .9

2 Normative references .9
3 Definitions .10
SECTION TWO – MANUFACTURING REQUIREMENTS
4 Engineering specifications .20
4.1 General remarks.20
4.2 Protective housing.20
4.3 Access panels and safety interlocks .20
4.4 Remote interlock connector .21
4.5 Key control.21
4.6 Laser radiation emission warning .21
4.7 Beam stop or attenuator .22
4.8 Controls .22
4.9 Viewing optics .22
4.10 Scanning safeguard.22
4.11 Alignment aids.22
4.12 "Walk-in" access .22
4.13 Environmental conditions .22
4.14 Protection against other hazards .23
5 Labelling .23
5.1 General .23
5.2 Class 1.23
5.3 Class 2.24
5.4 Class 3R .24
5.5 Class 3B.24

5.6 Class 4.24
5.7 Aperture label.25
5.8 Radiation output and standards information.25
5.9 Labels for access panels .25
5.10 Warning for invisible laser radiation.26
5.11 Warning for visible laser radiation .26
5.12 Warning for LED radiation .26
6 Other informational requirements.27
6.1 Information for the user .27
6.2 Purchasing and servicing information .27

60825-1 © IEC:1993+A1:1997 – 3 –

+A2:2001(E)
7 Additional requirements for specific laser products .28

7.1 Medical laser products .28

7.2 Other parts of the standard series IEC 60825 .28

8 Classification.28

8.1 Introduction .28

8.2 Description of laser classes.28

8.3 Classification responsibilities.29

8.4 Classification rules .29

9 Measurements for classification.32

9.1 Tests.32
9.2 Measurement of laser radiation .33
9.3 Measurement geometry.34
SECTION THREE – USER'S GUIDE
10 Safety precautions.41
10.1 General .41
10.2 Use of remote interlock connector .41
10.3 Key control.41
10.4 Beam stop or attenuator .41
10.5 Warning signs .42
10.6 Beam paths .42
10.7 Specular reflections.42
10.8 Eye protection .42
10.9 Protective clothing.43
10.10 Training.44
10.11 Medical supervision.44
11 Hazards incidental to laser operation.44
11.1 Atmospheric contamination.44
11.2 Collateral radiation hazards.44
11.3 Electrical hazards.45
11.4 Cryogenic coolants.45
11.5 Materials processing .45
11.6 Other hazards .45
12 Procedures for hazard control.45

12.1 General .45
12.2 Hazard evaluation for lasers used outdoors.46
12.3 Personal protection .46
12.4 Laser demonstrations, displays and exhibitions .46
12.5 Laboratory and workshop laser installations .47
12.6 Outdoor and construction laser installations .48
13 Maximum permissible exposures .49
13.1 General remarks.49
13.2 Limiting apertures.50
13.3 Repetitively pulsed or modulated lasers .50
13.4 Measurement conditions.51
13.5 Extended source lasers .52

– 4 – 60825-1 © IEC:1993+A1:1997

+A2:2001(E)
Annex A (informative) Examples of calculations .68

Annex B (informative) Biophysical considerations .96

Annex C (informative) Bibliography.105

Annex D (informative) Summary tables .106

Annex E (informative) High power laser considerations particularly appropriate to

materials-processing laser products.109

Annex F (informative) Related IEC Standards .112

Annex G (informative) Information to be provided by manufacturers of LEDs .113

Annex H (informative) Overview of associated parts of IEC 60825 .116

–9
Figure 1 – Correction factor C for emission durations from 10 s to 10 s .55
Figure 2 – Breakpoint T for λ =
...

Publication 825-1 de la CEI IEC Publication 825-1

(Première édition - 1993) (First edition - 1993)

Safety of laser products -
Sécurité des appareils à laser -

Part 1: Equipment classification,
Partie 1: Classification des matériels,

prescriptions et guide de l’utilisateur requirements and user’s guide

C O R R I G E N D U M 1
Page 9
Page 8
FOREWORD
AVANT-PROPOS
Replace the third paragraph following the table
Remplacer le troisième alinéa sous le tableau
of documents by:
des documents par:
IEC 825-1 has the status of a Group Safety
La CEI 825-1 a le statut d’une publication
Publication, in accordance with IEC Guide 104*,
groupée de sécurité, conformément au Guide
for aspects of laser radiation pertaining to
CEI 104*, pour ce qui concerne les aspects
human safety.
du rayonnement laser relatifs à la sécurité des
personnes.
Page 11
Page 10
1.1  Scope and object
1.1  Domaine d’application et objet
Replace the last paragraph on this page (see
Remplacer le dernier alinéa de cette page (qui
also top of page 13) by:
se poursuit à la page 12) par:
Lorsqu’un système à laser constitue une Where a laser system forms a part of equip-
ment which is subject to another IEC product
partie d’un matériel qui est soumis à une autre
norme CEI de sécurité du matériel (par safety standard (e.g. for medical equipment
(IEC 601-2-22), IT equipment (IEC 950), audio
exemple matériels médicaux (CEI 601-2-22),
matériels de traitement de l’information (CEI and video equipment (IEC 65), equipment for
use in hazardous atmospheres), this part 1 will
950), matériels audio et vidéo (CEI 65), maté-
riels pour utilisation en atmo
...

NORME
CEI
INTERNATIONALE
IEC
60825-1
INTERNATIONAL
Edition 1.1
STANDARD
1998-01
Edition 1:1993 consolidée par l'amendement 1:1997
Edition 1:1993 consolidated with amendment 1:1997
PUBLICATION GROUPÉE DE SÉCURITÉ
GROUP SAFETY PUBLICATION
Sécurité des appareils à laser –
Partie 1:
Classification des matériels, prescriptions
et guide de l'utilisateur
Safety of laser products –
Part 1:
Equipment classification, requirements
and user's guide
Numéro de référence
Reference number
CEI/IEC 60825-1:1993+A1:1997
Numéros des publications Numbering

Depuis le 1er janvier 1997, les publications de la CEI As from 1 January 1997 all IEC publications are issued

sont numérotées à partir de 60000. with a designation in the 60000 series.

Publications consolidées Consolidated publications

Les versions consolidées de certaines publications de Consolidated versions of some IEC publications

la CEI incorporant les amendements sont disponibles. including amendments are available. For example,

Par exemple, les numéros d’édition 1.0, 1.1 et 1.2 edition numbers 1.0, 1.1 and 1.2 refer, respectively, to
indiquent respectivement la publication de base, la the base publication, the base publication incorporating
publication de base incorporant l’amendement 1, et la amendment 1 and the base publication incorporating

publication de base incorporant les amendements 1 amendments 1 and 2.

et 2.
Validité de la présente publication Validity of this publication
Le contenu technique des publications de la CEI est The technical content of IEC publications is kept under
constamment revu par la CEI afin qu'il reflète l'état constant review by the IEC, thus ensuring that the
actuel de la technique. content reflects current technology.
Des renseignements relatifs à la date de reconfirmation Information relating to the date of the reconfirmation of
de la publication sont disponibles dans le Catalogue de the publication is available in the IEC catalogue.
la CEI.
Les renseignements relatifs à ces révisions, à l'établis- Information on the revision work, the issue of revised
sement des éditions révisées et aux amendements editions and amendments may be obtained from
peuvent être obtenus auprès des Comités nationaux de la IEC National Committees and from the following
CEI et dans les documents ci-dessous: IEC sources:
• Bulletin de la CEI • IEC Bulletin
• Annuaire de la CEI • IEC Yearbook
Accès en ligne* On-line access*
• Catalogue des publications de la CEI • Catalogue of IEC publications
Publié annuellement et mis à jour régulièrement Published yearly with regular updates
(Accès en ligne)* (On-line access)*
Terminologie, symboles graphiques Terminology, graphical and letter
et littéraux symbols
En ce qui concerne la terminologie générale, le lecteur For general terminology, readers are referred to
se reportera à la CEI 60050: Vocabulaire Electro- IEC 60050: International Electrotechnical Vocabulary
technique International (VEI). (IEV).
Pour les symboles graphiques, les symboles littéraux et For graphical symbols, and letter symbols and signs
les signes d'usage général approuvés par la CEI, le approved by the IEC for general use, readers are
referred to publications IEC 60027: Letter symbols to
lecteur consultera la CEI 60027: Symboles littéraux à
utiliser en électrotechnique, la CEI 60417: Symboles be used in electrical technology, IEC 60417: Graphical
graphiques utilisables sur le matériel. Index, relevé et symbols for use on equipment. Index, survey and
compilation of the single sheets
compilation des feuilles individuelles, et la CEI 60617: and IEC 60617:
Symboles graphiques pour schémas. Graphical symbols for diagrams.

Publications de la CEI établies par IEC publications prepared by the same
le même comité d'études technical committee
L'attention du lecteur est attirée sur les listes figurant à The attention of readers is drawn to the end pages of
la fin de cette publication, qui énumèrent les this publication which list the IEC publications issued
publications de la CEI préparées par le comité d'études by the technical committee which has prepared the
qui a établi la présente publication. present publication.
* Voir adresse «site web» sur la page de titre. * See web site address on title page.

NORME
CEI
INTERNATIONALE
IEC
60825-1
INTERNATIONAL
Edition 1.1
STANDARD
1998-01
Edition 1:1993 consolidée par l'amendement 1:1997
Edition 1:1993 consolidated with amendment 1:1997
PUBLICATION GROUPÉE DE SÉCURITÉ
GROUP SAFETY PUBLICATION
Sécurité des appareils à laser –
Partie 1:
Classification des matériels, prescriptions
et guide de l'utilisateur
Safety of laser products –
Part 1:
Equipment classification, requirements
and user's guide
 IEC 1998 Droits de reproduction réservés  Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in
utilisée sous quelque forme que ce soit et par aucun any form or by any means, electronic or mechanical,
procédé, électronique ou mécanique, y compris la photo- including photocopying and microfilm, without permission in
copie et les microfilms, sans l'accord écrit de l'éditeur. writing from the publisher.
International Electrotechnical Commission 3, rue de Varembé Geneva, Switzerland
Telefax: [phone] e-mail: [e-mail] IEC web site http: //www.iec.ch
CODE PRIX
Commission Electrotechnique Internationale
PRICE CODE XD
International Electrotechnical Commission
Pour prix, voir catalogue en vigueur
For price, see current catalogue

– 2 – 60825-1 © CEI:1993+A1:1997

SOMMAIRE
Pages
AVANT-PROPOS . 8

SECTION UN – GÉNÉRALITÉS
Articles
1 Domaine d'application et objet . 10

1.1 Domaine d'application. 10

1.2 Objet. 12

2 Références normatives . 12

3 Définitions. 14
SECTION DEUX – PRESCRIPTIONS DE FABRICATION
4 Spécifications techniques. 28
4.1 Remarques générales. 28
4.2 Capot de protection . 28
4.3 Verrouillages de sécurité . 30
4.4 Connecteur de verrouillage à distance. 32
4.5 Commande à clé. 32
4.6 Avertissement d'émission de rayonnement laser . 32
4.7 Arrêt de faisceau ou atténuateur. 32
4.8 Commandes. 32
4.9 Optiques d'observation. 32
4.10 Sécurité de balayage . 34
4.11 Aides à l'alignement. 34
4.12 Accès «piétonnier». 34
4.13 Considérations liées à l'environnement. 34
4.14 Protection contre les autres risques . 34
5 Etiquetage. 36
5.1 Généralités. 36
5.2 Classe 1. 36
5.3 Classe 2. 36
5.4 Classe 3A. 36

5.5 Classe 3B. 38
5.6 Classe 4. 38
5.7 Plaque indicatrice d'ouverture. 38
5.8 Information sur le rayonnement émis et les normes. 38
5.9 Plaques indicatrices pour les panneaux d'accès . 38
5.10 Avertissement pour rayonnement laser invisible . 40
5.11 Avertissement pour rayonnement laser visible. 40
5.12 Avertissement pour le rayonnement des DEL . 40

60825-1 © IEC:1993+A1:1997 – 3 –

CONTENTS
Page
FOREWORD . 9

SECTION ONE – GENERAL
Clause
1 Scope and object . 11

1.1 Scope . 11

1.2 Object . 13
2 Normative references. 13
3 Definitions . 15
SECTION TWO – MANUFACTURING REQUIREMENTS
4 Engineering specifications . 29
4.1 General remarks . 29
4.2 Protective housing . 29
4.3 Access panels and safety interlocks . 31
4.4 Remote interlock connector . 33
4.5 Key control . 33
4.6 Laser radiation emission warning. 33
4.7 Beam stop or attenuator . 33
4.8 Controls . 33
4.9 Viewing optics. 33
4.10 Scanning safeguard . 35
4.11 Alignment aids . 35
4.12 "Walk-in" access . 35
4.13 Environmental conditions. 35
4.14 Protection against other hazards . 35
5 Labelling . 37
5.1 General. 37
5.2 Class 1 . 37

5.3 Class 2 . 37
5.4 Class 3A . 37
5.5 Class 3B . 39
5.6 Class 4 . 39
5.7 Aperture label . 39
5.8 Radiation output and standards information. 39
5.9 Labels for access panels . 39
5.10 Warning for invisible laser radiation. 41
5.11 Warning for visible laser radiation. 41
5.12 Warning for LED radiation. 41

– 4 – 60825-1 © CEI:1993+A1:1997

Articles Pages
6 Autres prescriptions relatives aux renseignements à fournir . 40

6.1 Renseignements pour l'utilisateur . 40

6.2 Renseignements pour l'achat et l'entretien . 42

7 Prescriptions additionnelles pour appareils à laser spécifiques. 42

7.1 Appareils à laser médicaux. 42

7.2 Système de transmission laser par fibre optique . 44

8 Essais.44

8.1 Généralités. 44

8.2 Mesure des niveaux de rayonnement laser en vue de déterminer la
classification.
...