Laser Safety Policy. Reviews and Revisions. Action Date Reason Reviewer. Laser Safety Policy 1

Transcription

1 Laser Safety Policy Reviews and Revisions Action Date Reason Reviewer Laser Safety Policy 1

2 Contents 1. Introduction General Class 3R Lasers Class 3B And Class 4 Lasers Laser Pointers Arrangements... 5 References... 6 Appendices... 7 Laser Safety Policy 2

3 1. Introduction 1.1 The aim of this policy is to protect staff, students, contractors and visitors from exposure to harmful levels of laser radiation. 1.2 The potential hazard posed by a particular laser is indicated by its classification against the requirements of BS EN :2014, Edition 2 - Safety of laser products Part 1: Equipment classification and requirements (1), the primary standard for laser safety to which many other standards and guidelines refer. Guidance to ensure that work with lasers in universities is carried out safely and in accordance with this standard is given in Guidance on the Safe Use of Lasers in Education and Research issued by the Association of University Radiation Protection Officers (AURPO) (2). It is the policy of the University of Northumbria to ensure compliance with this document. 1.3 This policy recognises the special hazards associated with lasers of Class 3B and Class 4 and the stricter control measures necessary to ensure safety in their use. 1.4 In accordance with the AURPO guidance the University has appointed a Laser Safety Officer, Dr G Zoppi, of the Faculty of Engineering and Environment, ext General 2.1 A register of all lasers on University premises is held by the Laser Safety Officer. No laser is to be used on the premises unless it has been notified to the Laser Safety Officer and listed on the University Laser Register (Appendix I). Each Departmental Laser Safety Officer will maintain an inventory of the lasers in their Faculty/Service Department (Appendix II) and advise the Laser Safety Officer who will ensure that the University Laser Register is updated as necessary. 2.2 All lasers must bear labels giving details of their maximum output(s), of the wavelength(s) concerned, whether continuous wave or pulsed and if the latter, of pulse duration and repetition frequency and energy. In addition, each laser must be classified and labelled with a hazard warning appropriate to its class. 2.3 A laser of the minimum power or energy commensurate with the desired experimental objective should always be used. 2.4 Open beam paths should be located above or below eye level. The beam path from the laser to any equipment should be as short as possible with the minimum of optical reflection. Care should be taken to avoid unexpected reflections or refractions whenever items of apparatus are inserted or removed from the beam path. 2.5 Under no circumstances must intrabeam viewing be allowed unless authorised by the Laser Safety Officer and as documented in the local rules and schemes of work for the specified laser. Laser Safety Policy 3

4 2.6 A laser product may consist of a single laser with or without a separate power supply or may incorporate one or more lasers in a complex optical, electrical, or mechanical system. Laser products such as laser printers, CD/DVD players, barcode scanners, laser cutters and some scientific analytical equipment that employ high power lasers, may be given a low classification provided that they incorporate engineering controls to prevent user access to high levels of laser radiation. 3. Class 3R Lasers 3.1 All persons intending to work with Class 3R lasers or above must be registered with the Laser Safety Officer (Appendix V) who, in consultation with the relevant Departmental Laser Safety Officer, will arrange: (i) (ii) receipt of copies of local rules and relevant schemes of work; training in the safe use of lasers (Appendix VI). 3.2 Additional control measures apply to the use of Class 3R lasers: (i) (ii) (iii) the laser beam must be terminated at the end of the useful path by a suitable beam stop; open laser beam paths at eye-level should never be used and the beam should be enclosed where practicable; laser warning signs should be displayed at the entrance to areas where these classes of laser are used. 4. Class 3B And Class 4 Lasers 4.1 Class 3B and Class 4 lasers may only be used in a Designated Laser Area (listed in Appendix III). 4.2 Use of Class 3B and Class 4 lasers where it is not reasonably practicable to totally enclose the beam path may only be operated in accordance with an approved scheme of work designed to ensure the safe operation of the lasers. The Laser Safety Officer must be consulted and, in consultation with the relevant Departmental Laser Safety Officer, is responsible for drawing up approved schemes of work. Laser Safety Policy 4

5 4.3 Class 3B and Class 4 lasers must incorporate the following safety features: (i) (ii) (iii) (iv) key control to ensure that only authorised personnel use the laser; a beam shutter or attenuator which operates automatically to prevent the inadvertent exposure of persons to hazardous laser radiation; a remote interlock which shuts down the laser on opening the door to the Designated Laser Area; an emission indicator sited outside the Designated Laser Area to give warning of lasers in use. 4.4 Appropriate laser safety goggles must be provided for all work with Class 3B and Class 4 lasers where the laser beam is not totally enclosed. 4.5 In the event of an eye injury caused by a laser beam the Emergency Procedure for Exposure to Class 3B or Class 4 Laser (Appendix VIII) should be followed. 5. Laser Pointers 5.1 Small lasers are commonly used by students and staff for presentation purposes as pointers. Users are responsible for using such pointers in a safe manner such that they do not expose themselves or others to the beam. Guidance on the safe use of laser pointers is given in Appendix VII. 5.2 Class 1 and Class 2 pointers are recommended for use. Class 3B pointers must not be used. 6. Arrangements 6.1 The Head of Faculty/Department has overall responsibility for health and safety arrangements within that Faculty/Service Department. 6.2 Responsibility for ensuring that lasers are used in accordance with this policy is that of the relevant member of University staff in charge (Class 1, Class 1M, Class 2 and Class 2M lasers) or the registered laser user (Class 3R and above). This includes ensuring the appropriate level of supervision. 6.3 The Laser Safety Officer will monitor laser installations to ensure implementation of this policy. 6.4 The University Health and Safety Adviser will notify the Laser Safety Officer if, during the course of departmental safety inspections, they become concerned at the conditions in which a laser is being used. Laser Safety Policy 5

6 6.5 Annually, the Departmental Laser Safety Officer will assess each laser against the requirements of the Laser Survey Form (Appendix IV). Any laser failing to comply will be taken out of use until appropriate remedial action has been taken to secure compliance. 6.6 The Laser Safety Officer will notify the University Health and Safety Adviser of any concerns regarding laser safety. References (1) BS EN :2014, Edition 2 - Safety of laser products Part 1: Equipment classification and requirements. London: British Standards Institute. (2) Association of University Radiation Protection Officers (2012) Guidance on the Safe Use of Lasers in Education and Research,, AURPO Guidance Note No Revised Edition. [This document is available at Health and Safety Office 1\Codes\HS24\1994 Revised May 2014 Laser Safety Policy 6

7 Appendix I University Laser Register Appendix II Laser Inventory Appendix III Designated Laser Areas Appendix IV Laser Survey Form Appendix V Laser User Registration Form Appendix VI Laser User Training Record Form Appendix VII The Safe Use of Laser Pointers Appendix VIII Emergency Procedure for Exposure to Class 3B or Class 4 Laser Appendix IX Hazard and Risk Assessment (Class 1M, 2, 2M and 3R Lasers) Appendix X Hazard and Risk Assessment (Class 3B and 4 Lasers) Laser Safety Policy 7

8 University Laser Register Faculty/Dept: Location Manufacturer Model Serial No Type Wavelength Power (1) Laser Class Notes (1) Continuous output power for CW lasers; pulse power, duration and repetition rate for pulsed lasers. (2) Do not include office based Class 1 laser products or equipment containing them, i.e. CD/DVD players, laser printers, etc.. Laser Supervisor/Officer: Date: 8 Laser Safety Policy

9 Laser Inventory Faculty/Dept: Location Manufacturer Model Serial No Type Wavelength Power (1) Laser Class Notes (1) Continuous output power for CW lasers; pulse power, duration and repetition rate for pulsed lasers. (2) Do not include office based Class 1 laser products or equipment containing them, i.e. CD/DVD players, laser printers, etc.. Laser Supervisor/Officer: Date: 9 Laser Safety Policy

10 Designated Laser Areas Faculty/Dept: Location Manufacturer Model Serial No Type Wavelength Power (1) Laser Class Notes (1) Continuous output power for CW lasers; pulse power, duration and repetition rate for pulsed lasers. (2) Do not include office based Class 1 laser products or equipment containing them, i.e. CD/DVD players, laser printers, etc.. Laser Supervisor/Officer: Date: 10 Laser Safety Policy

11 Date: Laser Survey Form Make: Model: S/N: Asset No: Dept: Room: Type: Mode: Wavelength (nm) Max power (mw) Precautions Class 1M Class 2 Class 2M Class 3R Class 3B Class 4 Class 1(E) Remote interlock n/a n/a n/a n/a n/a Safety interlocks n/a n/a n/a Key control n/a n/a n/a n/a Emission indicator n/a n/a n/a Beam stop/shutter n/a n/a n/a n/a n/a Beam terminator n/a n/a Beam level n/a Beam enclosure n/a n/a n/a Eye protection n/a n/a n/a n/a Protective clothing n/a n/a n/a n/a n/a Eye examinations n/a n/a n/a n/a n/a Training n/a Laser labels Door/Area signs n/a n/a n/a n/a n/a Laser installation: satisfactory / not satisfactory Additional Control measures required.... Laser Safety Policy 11

12 MANUFACTURER'S AND USER REQUIREMENTS 1 Remote interlock - connection provided by the manufacturer for door or enclosure interlock for Class 3B and Class 4 lasers. 2 Safety interlocks - required for access panels on Class 3R, 3B and 4 laser systems. 3 Key control - a key or similar device is required to control unauthorised operation of Class 3B and Class 4 lasers. 4 Emission indicator - an audible or visible indicator should be provided by the manufacturer for each Class 3R laser ( except wavelengths nm) and each Class 3B and Class 4 laser system. 5 Beam stop or attenuator/shutter - should be provided by the manufacturer for each Class 3B or Class 4 laser system. 6 Beam termination - the user should ensure that all beam paths are terminated at the end of their useful path. (Does not apply to Class 1 devices.) 7 Beam level - avoid eye level. 8 Beam enclosure - to guard against specular reflections from Class 3R, Class 3B and Class 4 lasers - can mean anything from screening the experimental area or piping the beam up to a total enclosure. 9 Eye protection - required for open beam work with invisible beam Class 3R and all Class 3B and Class 4 devices. 10 Protective clothing - mainly required for Class 4 lasers but be careful with Class 3B UV lasers as well, may need fire resistant material for some lasers. 11 Eye examinations - only required after an accident but may be important to people with poor eyesight working with Class 3B or Class 4 lasers. 12 Training - required for people working with any Class 3 or Class 4 laser and any modified Class 1M or Class 2M devices. 13 Laser labels - required for all lasers except low power Class 1 ( though need not be directly affixed if the size of the laser product does not permit this). 14 Door/Area signs - required for Class 3B and Class 4 lasers indoors and also for Class 1M, 2M and 3R if used outdoors. Laser Safety Policy 12

13 LASER USER REGISTRATION FORM Surname: Title (Mr, Ms, Dr, etc.) Telephone: Status (Lecturer, RA, Technician, etc.): Forename: Location: Supervisor: Faculty/Service Department: Laser Class Location Purpose Comments RETURN THIS FORM TO YOUR FACULTY/DEPARTMENTAL LASER SAFETY OFFICER. Laser Safety Policy 13

14 AUTHORISED LASER USER TRAINING RECORD FORM Surname: Title (Mr, Ms, Dr, etc.) Telephone: Status (Lecturer, RA, Technician, etc.): Forename: Location: Supervisor: Faculty/Service Department: Laser Class Location Purpose Attended University training lecture. Registered as University laser user. Read University local rules for laser safety. Familiar with all hazards within the laboratory and the laboratory s risk assessment. Trained in the use of the lasers named above. Familiar with the laser schemes of work. Laser User Signature: Date: Supervisor Signature: Date: RETURN THIS FORM TO YOUR FACULTY/DEPARTMENTAL LASER SAFETY OFFICER. Laser Safety Policy 14

15 THE SAFE USE OF LASER POINTERS Small lasers are commonly available and some are used for presentation purposes as pointers. In the past laser pointers were only available in red wavelengths and had output powers up to and sometimes over 5mW. Nowadays devices are available emitting green wavelengths, where the eye is more sensitive and lower powers are all that is needed, so that laser pointers now only need to be Class 2 devices (output < 1 mw). NB Class 1 laser products are normally safe. Class 2 and Class 3R products are not hazardous under certain conditions, however they can cause harm to the eyes particularly if the beam is stared into. Class 3B laser pointers must not be used. Normally the eye's natural aversion response affords protection to short duration accidental exposure to Class 2. Class 1 or Class 2 laser pointers are the recommended choice where a laser pointer is necessary and are the only type that should now be purchased. Laser pointers should only be used as a pointing device and securely stored when not in use. Persons who use laser pointers should ensure that they are aware of potential hazards and they should comply with the basic instructions below. Instructions for use When operating laser pointers, users must ensure that they use them in a safe manner and do not expose themselves or others to the beam. Laser pointers are not to be modified in any way. Follow Do the manufacturer's safety instructions. Take care when operating the laser pointer. Keep the 'on' button depressed only when necessary. not keep the on button depressed when not pointing at the screen. Do not point at or towards the audience. Do not point at mirrored surfaces. Never look into the laser aperture. Never look directly or stare into the beam/beam aperture when on. Never allow unauthorised use, especially by children Further guidance on laser pointers can be found on the HPA s website Laser Safety Policy 15

16 EMERGENCY PROCEDURE FOR EXPOSURE TO CLASS 3B OR CLASS 4 LASER In the event of an actual eye injury caused by a laser beam: 1. Call for help. 2. Switch off the laser, if possible. 3. During normal working hours report to the Accident & Emergency department at the Newcastle General Hospital, Westgate Road, Newcastle upon Tyne, NE4 6BE as soon as possible and within 24 hours of the incident. Do not drive yourself, get a colleague to take you or request transportation by telephoning Security control on extension Out of normal working hours contact Security Control on extension 3200 and request an ambulance. State the building and room you are in and the nature of the incident. 4. Take the information below to the Hospital. NB: The table below should be completed immediately individual forms for each class 3B or 4 laser - so that in the event of an emergency it is readily available to inform the type of treatment you receive. EMERGENCY OPHTHALMIC EXAMINATION LASER EXPOSURE Report to: Accident & Emergency Department Royal Victoria Infirmary, Queen Victoria Road, Newcastle upon Tyne, NE1 4LP Telephone: LASER DETAILS Type: Continuous Wave/Pulsed * Wavelength: Power Output (CW): Or pulse energy, Duration and Rate(Pulsed): *Delete as appropriate Laser Classification: All accidents or incidents involving Lasers must be reported promptly to the Health & Safety Office on extension 7318 and then by completing the Incident Report form attached and sending it to The Health & Safety Adviser, 4 North Street East. The Department Laser Safety Officer must also carry out a detailed investigation of the accident. Laser Safety Policy 16

17 INCIDENT REPORT FORM (IR1) PLEASE COMPLETE ALL FIELDS IN BLOCK CAPITALS SECTION 1 To be completed by Injured Party or their representative WHAT ARE YOU REPORTING? (Please circle) Accident / Violence at Work / Near Miss / Ill Health Condition / Dangerous Occurrence Mr / Mrs / Miss / Ms / Dr Employee / Student / Contractor / Visitor Age: Last Name: Department/Faculty: Job Title: First Name: Work Tel. No: Course (if student): Home Address: (This will not be passed to any third party other than the Health & Safety Executive if required) Home Tel. No: DETAILS OF WHERE THE INCIDENT OCCURRED Date of Incident: Building: Time of Incident: Campus: Exact Location: Laser Safety Policy 17

18 DETAILS DETAILS OF HOW THE OF HOW INCIDENT THE OCCURRED INCIDENT OCCURED (Please give as much detail as possible) (please give as much detail as possible) INJURIES (Please give details of nature of any injuries sustained as a result of the incident, what was the injury e.g. fracture, laceration, what part of the body was affected?) Part of the CONTINUED body affected OVER (tick all that apply) Eye Han Wris Arm/Shoulde Le d t r g Left Righ t Kne e Ankl e Foo t Hi p Hea d Ches t Abdomen/lo wer body Laser Safety Policy 18

19 TREATMENT What treatment was given at the scene? (Describe) Was the injured person sent: Home / to Hospital / to GP / Back to Work (please circle) Name of First Aider dealing with incident: First Aider University registered? Yes / No Type of First Aider: Security / Caretaker / Other (please circle) Witness Details (if applicable) Name: Telephone No: SECTION 2 To be completed by the Supervisor or Person in charge of the Activity Name of Supervisor or Person in charge of Activity: Job title: Telephone number: Date: Was the incident due to possible defects in premises, equipment, tools and/or systems of work? (If yes, please give details below) What immediate action has been taken to prevent a re-occurrence of the incident? If an employee has the injured person been absent from work for more than 7 days? Yes / No (please circle) If you require acknowledgement that this form has been received by Health and Safety, please tick the box and supply telephone contact details: Contact telephone number: THE SUPERVISOR OR PERSON IN CHARGE OF THE ACTIVITY MUST SEND THE COMPLETED FORM IN A SEALED ENVELOPE TO THE HEALTH & SAFETY ADVISOR, CAMPUS SERVICES DEPARTMENT, 6 NORTH STREET EAST, CITY CAMPUS AND A COPY TO THE FACULTY OFFICE OR SERVICE DEPARTMENT ADMINISTRATION SECTION. Laser Safety Policy 19

20 SECTION 3 For Health and Safety Office use only Accident Number: Investigate Y/N Reportable Y/N Major Y/N 7 Day+ Y/N Report Illness to Occupational Health Y/N Time Lost Y/N First Day of Absence: RIDDOR Report Number: Signature: Date of RIDDOR Report: Date: Laser Safety Policy 20

21 HAZARD AND RISK ASSESSMENT USE of CLASS 1M, 2, 2M and 3R LASERS Faculty/Service Department: Assessor: Date of assessment: Without the use of magnifying optics 1M devices do not pose an eye hazard, neither do 2 or Class 2M devices so long as you do not stare into the beam (eye protection is normally afforded by the aversion responses). An eye hazard is possible if there is: exposure in excess of more than 0.25 seconds from Class 2/2M lasers; exposure to modified Class 1M/2M; or if Class 3R lasers are viewed directly. Risk of eye injury is low. There is no skin or fire hazard. LOCATION AND DESCRIPTION OF THE WORK/ACTIVITY LASER SPECIFICATION Model: Maximum Power: Classification: Wavelength Range: HAZARDS NON-OPTICAL and OPTICAL (1M/2M) Detail the significant risks and the control measures necessary for any nonoptical hazard identified, and any optical hazard from 1M/2M devices Hazard/Risk Control Measure CONTROL MEASURES Avoid eye level and do not expose users or others to the beam. Modified 1M/2M devices may need to be reassessed as a higher classified laser. Follow the manufacturer's safety instructions. Take care when operating the laser system. Keep the laser 'on' only when necessary. Restrict unauthorised use. Terminate the beam at the end of its useful path. Laser Safety Policy 21

22 Do not point at or towards persons deliberately. Do not point at mirrored surfaces that may cause unplanned reflections. Never look into the laser aperture. Never look directly or stare into the beam/beam aperture when on. Never allow unauthorised use. Do not use direct optical viewing aids. Contact Name: Ext: Laser Safety Policy 22

23 HAZARD AND RISK ASSESSMENT USE of CLASS 3B and 4 LASERS Faculty/Service Department: Assessor: Date of assessment: Class 3B and Class 4 lasers are capable of causing eye injury to anyone who looks directly into the beam or its specular reflections. In addition, diffuse reflections of a high power (Class 4) laser beam can produce permanent eye damage. High power laser beams (Class 4) can burn exposed skin, ignite flammable materials, and heat materials that release hazardous fumes, gases, debris, or radiation. Equipment and optical apparatus required to produce and control laser energy may also introduce additional hazards associated with high voltage, high pressure, cryogenics, noise, and other forms of radiation, flammable materials, and toxic fluids. Thus, each proposed experiment or operation involving a laser must be evaluated to determine the hazards involved and the appropriate safety measures and controls required. 1. LOCATION OF THE WORK/ACTIVITY 2. LASER IDENTIFICATION AND SPECIFICATIONS Complete the following chart; list all lasers, including low power alignment lasers. Type Manufacturer: Model Serial No. Maximum Power Maximum Pulse Energy Wavelength Range Wavelength Used Power Used Pulse Energy Used Pulse Length Pulse Repetition Rate Laser 1 Laser 2 Laser 3 Laser Safety Policy 23

24 Beam Diameters (x,y) Beam shape (e.g. ellipse, box, circular) Beam Divergence (x,y) Laser Classification 3. DESCRIPTION OF ACTIVITY OR RESEARCH PROJECT Provide a brief description of the laser set up, its purpose and operational parameters. DURATION OF ACTIVITY/PROJECT Is the work ongoing or for a limited period? 4. IDENTIFICATION OF HAZARDS ADDITIONAL TO THE LASER HAZARD(S) Electrical Hazards Most lasers contain high voltage power supplies and often large capacitors/capacitor banks that store lethal amounts of electrical energy. Are any special precautions/procedures required? Yes/No Laser Dyes Laser dyes are often toxic and/or carcinogenic chemicals dissolved in flammable solvents Are laser dyes used? If yes give details. Yes/No Compressed and Toxic Gases Hazardous gases may be used in laser applications, i.e., excimer lasers (fluorine, hydrogen chloride). Are compressed gases and/or toxic gases used? If yes give details. Yes/No Cryogenic Fluids Cryogenic fluids can create hazardous situations. Adequate ventilation must be provided. Are cryogenic fluids used? If yes give details. Yes/No Fumes/Vapours/Laser Generated Air Contaminants from Beam / Target interaction When laser beams are sufficiently energised to heat up a target, the target may vaporise, Laser Safety Policy 24

25 creating hazardous fumes or vapours that may need to be captured or exhausted. Is there a potential for fumes/vapours/laser Generated Air Contaminants? If yes give details. Yes/No UV and Visible Radiation/ Plasma Emissions UV and visible radiation may be generated by laser discharge tubes, pump lamps or plasmas. The levels produced may be an eye and skin hazard. Is there a potential for significant UV/visible radiation? Yes/No Explosion Hazards High pressure arc lamps, filament lamps, and capacitors may explode if they fail during operation. Laser targets and some optical components also may shatter if heat cannot be dissipated quickly enough. Is there an explosion hazard? If yes give details. Yes/No Ionising Radiation (X rays) X rays can be produced from two main sources, high voltage vacuum tubes of laser power supplies such as rectifiers, thyratrons, and electric discharge lasers. Any power supplies that require more than 15 kv may produce x rays. Is there an ionising radiation hazard? Yes/N o Other hazards not identified above. Please specify 5. PERSONS WHO MAY BE AT RISK Specified Authorised Laser Users Project Supervisors Laser Safety Policy 25

26 6. MEASURES TO REDUCE LEVEL OF RISK (LASER HAZARD) Are open or partially enclosed beams 1. Initial setting up and beam alignment. used during the following? 2. Addition of new optical elements/lasers. 3. Day to day operation 4. Servicing. Are there protocols/procedures to control risks from the ocular (and if applicable, skin) hazard? List the operating protocols with references/dates/location. 1. Initial setting up and beam alignment. 2. Addition of new optical elements/lasers. 3. Day to day operation 4. Servicing. YES / NO / n/a YES / NO / n/a YES / NO / n/a YES / NO / n/a YES / NO / n/a YES / NO / n/a YES / NO / n/a YES / NO / n/a ALL OPEN BEAM WORK MUST HAVE AN APPROPRIATE PROTOCOL/OPERATING PROCEDURE 7. INSTRUCTION/TRAINING Authorised laser users must receive appropriate training and instruction. Specify the instruction and training arrangements. 8. PERSONAL EYE PROTECTION A list of authorised laser users is to be displayed Detail How Scale number was determined. Number available Location Manufacturer Scale number Wavelength 9. ASSESSMENT OF RISK (ASSOCIATED HAZARDS identified in Section 4) Laser Safety Policy 26

27 Detail the significant risks and the control measures necessary (i.e. by reference to protocols/procedures or safety manual). For hazardous substances, specify the location of the appropriate COSHH assessments. Hazard/Risk Control Measure 10. MONITORING Performance of control measures. It is the individual responsibility of each laser operator to follow the guidelines on laser safety. Where control measures have failed or have been suspect then laser users should report these. Supervisors should monitor that users are complying with procedures as should the Departmental and University Laser Safety Officers by carrying out periodic checks. 11. REVIEW Enter the date or circumstances for review of assessment (3 years or the length of the particular project/worker if shorter.) Where new lasers or components are introduced then these changes need to be assessed; protocols may need to be modified. A review would also be required where a new laser worker starts; ensure that they are informed of the relevant risks and protocols. 12. EMERGENCY ACTION Enter the date or circumstances for review of assessment (3 years or the length of the particular project/worker if shorter.) TO CONTROL HAZARDS Turn off power. To stabilise situation e.g. turn off power source, etc. TO PROTECT PERSONNEL Evacuation, protection for personnel, Special First Aid Once power has been turned off the laser does not present an optical hazard to personnel in the area. TO RENDER SITE OF EMERGENCY SAFE Power, ventilation Turn off power. 13. EMERGENCY CONTACTS Name Name Telephone Telephone Laser Safety Policy 27

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