IEC TR 60825-8:2022

IEC TR 60825-8 ®
Edition 3.0 2022-09
TECHNICAL
REPORT
Safety of laser products –
Part 8: Guidelines for the safe use of lasers on humans
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IEC TR 60825-8 ®
Edition 3.0 2022-08
TECHNICAL
REPORT
Safety of laser products –
Part 8: Guidelines for the safe use of lasers on humans

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 11.040.99; 31.260 ISBN 978-2-8322-5285-7

– 2 – IEC TR 60825-8:2022 © IEC 2022
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 8
4 Hazards and preventive measures . 10
4.1 Risks to eyes . 10
4.1.1 General . 10
4.1.2 Laser protective eyewear of personnel . 10
4.1.3 Laser protective eyewear of patients or clients . 11
4.1.4 Eye protection with viewing optics . 11
4.1.5 Eye protection of persons behind room windows . 11
4.1.6 Reflecting surfaces . 12
4.2 Risks to skin . 12
4.2.1 General . 12
4.2.2 Skin protection against laser radiation . 13
4.2.3 Protection against burning of materials close to the skin . 13
4.3 Risk of internal combustion . 13
4.3.1 General . 13
4.3.2 Protection against combustion of endogenous gases . 13
4.3.3 Protection against airway fire . 14
4.3.4 Protection against burning of an endoscope . 14
4.4 Risks due to inhalation of noxious fumes and plumes. 14
4.4.1 General . 14
4.4.2 Dedicated smoke evacuation systems . 15
4.4.3 Central vacuum suction systems . 15
4.4.4 Face masks . 15
4.4.5 Disposal of filters . 15
5 Administrative procedures . 16
5.1 LASER SAFETY OFFICER (LSO) . 16
5.1.1 General . 16
5.1.2 Duties and responsibilities of the LSO . 16
5.2 INCIDENTS and ACCIDENTS . 17
5.2.1 General . 17
5.2.2 Initial reporting . 17
5.2.3 Medical examination . 17
5.2.4 Medical surveillance . 17
5.2.5 Investigation of the circumstances of the event . 17
5.2.6 INCIDENT and ACCIDENT follow-up . 18
5.3 Maintenance and inspection . 18
5.3.1 Maintenance . 18
5.3.2 Inspection schedule . 19
6 Laser safety training recommendations . 19
7 Laser environment . 19
7.1 The LASER CONTROLLED AREA . 19

7.2 Access controls. 19
7.2.1 General . 19
7.2.2 Warning signs . 19
7.2.3 Illuminated warning indicators . 20
7.2.4 Door switches and interlocks . 20
7.3 Fire protection policy. 20
Annex A (informative)  Biological effects, hazards, laser equipment technology . 21
A.1 Biological effects and hazards . 21
A.1.1 General . 21
A.1.2 Hazards to the eye . 22
A.1.3 Hazards to the skin . 23
A.1.4 Determination of NOHD . 24
A.2 Laser applications . 24
A.2.1 General . 24
A.2.2 Area of application . 24
A.2.3 Types of application . 24
A.3 Laser equipment technology . 25
A.3.1 Laser radiation sources . 25
A.3.2 Laser radiation delivery systems . 25
Annex B (informative)  Window shielding . 29
B.1 General . 29
B.2 Laser wavelength . 29
B.3 Resistance to fire and heat . 29
B.4 Removable attachments . 29
Annex C (informative) Checklist for laser installation. 31
C.1 General . 31
C.2 Identify . 31
C.3 Determine relevant information . 31
C.3.1 Details of laser . 31
C.3.2 Other hazards . 31
C.3.3 Application . 31
C.3.4 Life cycle . 31
C.4 Risk assessment . 32
C.4.1 General . 32
C.4.2 Laser beam . 32
C.4.3 Non-laser hazards . 32
C.5 Treatment unit . 32
C.6 Authorization and training of personnel . 33
C.7 Operating procedures . 33
C.7.1 Pre-use testing . 33
C.7.2 INCIDENT procedure . 33
C.8 Annual audit . 33
C.8.1 Installation . 33
C.8.2 Risk assessment . 33
Annex D (informative)  Laser safety training. 34
Annex E (informative)  Inspection schedule . 35
E.1 General . 35
E.2 Quality assurance (QA) tests . 35

– 4 – IEC TR 60825-8:2022 © IEC 2022
E.2.1 General . 35
E.2.2 Cables . 35
E.2.3 Emergency switches .
...