IEC TR 60825-14:2022

Safety of laser products - Part 14: A user's guide

IEC TR 60825-14:2022 This second edition cancels and replaces the first edition published in 2004. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
incorporates changes made in IEC 60825-1:2014;
adds information to users of laser equipment on administrative controls to ensure safety in the workplace, including the training and appointment of people to specific laser safety management roles;
updates an approach to risk assessment;
includes updated guidance on the management of incidents and accidents;
includes updated guidance on medical surveillance for laser workers;
includes revised examples of calculations.
This document is intended to help laser users and their employers to understand the general principles of safety management, to identify the hazards that can be present, to assess the risks of harm that can arise, and to set up and maintain appropriate control measures. Although the guidance given in this document is aimed principally at organizations (whether private, corporate or public), where systems of safety management would be expected to be in place, it can be applied by anyone using lasers.
Laser control measures vary widely. They depend on the type of laser equipment in use, the task or process being performed, the environment in which the equipment is used and the personnel who are at risk of harm. Specific requirements for certain laser applications are given in other documents in the IEC 60825 series.

General Information

• Status: Published
• Publication Date: 24-Mar-2022
• ICS: 31.260 - Optoelectronics. Laser equipment
• Technical Committee: TC 76 - Optical radiation safety and laser equipment
• Drafting Committee: WG 8 - TC 76/WG 8
• Current Stage: PPUB - Publication issued
• Start Date: 12-Apr-2022
• Completion Date: 25-Mar-2022

Relations

• Revises: IEC TR 60825-14:2004 - Safety of laser products - Part 14: A user's guide
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC TR 60825-14 ®
Edition 2.0 2022-03
TECHNICAL
REPORT
colour
inside
Safety of laser products –
Part 14: A user's guide
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IEC TR 60825-14 ®
Edition 2.0 2022-03
TECHNICAL
REPORT
colour
inside
Safety of laser products –
Part 14: A user's guide
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 31.260 ISBN 978-2-8322-1087-7

– 2 – IEC TR 60825-14:2022 © IEC 2022
CONTENTS
FOREWORD . 7
INTRODUCTION . 9
1 Scope . 10
2 Normative references . 10
3 Terms, definitions and symbols. 11
3.1 Terms and definitions . 11
3.2 Symbols . 11
4 Administrative policies . 13
4.1 Safety responsibilities . 13
4.2 Competent Person . 13
4.3 Laser Safety Officer . 13
4.4 Information and training . 14
4.5 Levels of competence . 15
4.5.1 Laser Protection Adviser . 15
4.5.2 Laser Safety Officer . 15
4.5.3 Laser Safety Supervisor . 17
4.5.4 Laser user . 17
4.5.5 Awareness for other persons . 17
4.6 Training requirements . 18
4.7 Accreditation . 18
5 Laser radiation hazards . 19
5.1 Laser products . 19
5.1.1 Laser product classification . 19
5.1.2 Product classes . 19
5.1.3 Embedded lasers . 22
5.1.4 Optical fibres . 23
5.1.5 Laser demonstrations and displays . 23
5.1.6 Consumer laser products . 24
5.2 Exposure to laser radiation . 24
5.2.1 Maximum permissible exposure . 24
5.2.2 Transient visual effects . 24
5.3 Determining the level of laser exposure . 25
5.3.1 The effective exposure . 25
5.3.2 Limiting apertures . 26
5.3.3 Angle of acceptance for the assessment of exposure from extended
sources. 27
5.3.4 Use of binoculars . 29
6 Determining the maximum permissible exposure (MPE) . 29
6.1 General remarks . 29
6.2 Repetitively pulsed or modulated lasers . 36
6.3 Multiple wavelengths . 38
6.4 Extended source MPEs . 38
6.5 Hazard distance and hazard area. 39
6.5.1 Nominal ocular hazard distance . 39
6.5.2 Nominal ocular hazard area . 39
7 Associated hazards . 40

7.1 Additional health hazards . 40
7.2 Hazards arising from the laser . 40
7.2.1 Electricity. 40
7.2.2 Collateral radiation . 40
7.2.3 Other laser radiation . 41
7.2.4 Hazardous substances . 41
7.2.5 Fume . 41
7.2.6 Noise . 41
7.2.7 Mechanical hazards . 41
7.2.8 Fire, explosion and thermal damage . 41
7.2.9 Heat and cold . 42
7.3 Hazards arising from the environment . 42
7.3.1 Temperature and humidity . 42
7.3.2 Mechanical shock and vibration . 42
7.3.3 Atmospheric effects . 42
7.3.4 Electromagnetic and radio-frequency interference . 42
7.3.5 Power supply interruption or fluctuation . 42
7.3.6 Computer software problems . 42
7.3.7 Ergonomic and human-factor considerations . 42
7.4 Control of associated hazards . 43
8 Evaluating risk . 43
8.1 Hazards and risks . 43
8.2 Risk assessment: Stage 1 – Identifying potentially injurious situations . 44
8.2.1 General . 44
8.2.2 The hazards involved . 44
8.2.3 The laser environment . 44
8.2.4 The people at risk . 44
8.3 Risk assessment: Stage 2 – Assessing risk for potentially injurious situations . 45
8.3.1 General . 45
8.3.2 Frequency . 45
8.3.3 Severity . 45
8.3.4 Resultant risk . 45
8.4 Risk assessment: Stage 3 – Selecting control measures . 46
9 Control measures . 46
9.1 General . 46
9.2 Hazard reduction . 47
9.3 Enclosing the hazard . 48
9.3.1 Beam enclosures . 48
9.3.2 Viewing windows . 48
9.3.3 Interlock protection . 48
9.4 Hazard mitigation . 49
9.4.1 Preventing access . 49
9.4.2 Laser controlled areas . 50
9.4.3 Local rules and procedures . 56
9.4.4 Localized risk reduction . 57
9.4.5 Personal protection . 58
9.4.6 Protective clothing . 61
9.5 Equipment servicing . 61
9.5.1 Increased risks during laser equipment servicing . 61

– 4 – IEC TR 60825-14:2022 © IEC 2022
9.5.2 Temporary laser controlled areas. 61
9.5.3 Controls during servicing . 62
9.5.4 Visiting installation and servic
...