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Lasers
Skin or tissue surface damage
inducer
Applicability
 This training is required for all personnel routinely
working with or potentially exposed to Class 1M, 2M,
3R, 3B or 4 laser radiation and shall be accomplished
in conjunction with initial training and re-accomplished
annually, training shall be documented on AF Form 55
or electronic equivalent
 This training meets the requirements of AFI 48-139
and ANSI Z136.1 for Class 3B and Class 4 laser users
 If you have questions regarding this training, please
contact your Unit or Installation Laser Safety Officer
2
3
What are Lasers?
 Light Amplified by Stimulated Emission
of Radiation
 Lasers are extremely focused light
 Three primary characteristics
 Monochromatic
 Coherent
 Focused
4
Lasers are used in:
 Surveying work
 Surgery and other medical
applications
 Construction
 Communications
 Research
5
Maximum Exposure Limits
Based on Laser Type
 Class 1 – Normal aversion methods
(blinking, turning of the head) are
enough to prevent damage.
 Class 2 - An exposure duration less
than or equal to 0.25 seconds. Normal
aversion methods (blinking, turning of
the head) are normally enough to
prevent damage.
6
Exposure Limits continued
 Class 3 – Avoid any exposure. Aversion
methods (blinking, turning of the head)
aren’t sufficient to prevent eye damage.
 Class 4 – Avoid any exposure. Aversion
methods (blinking, turning of the head)
aren’t sufficient to prevent eye damage.
Skin damage and fire hazard.
Nominal Hazard Zone
 Maximum Permissible Exposure (MPE)
 Nominal Hazard Zone = Safety Distance
7
8
Reduce Your Exposure
Following we will discuss how we are
minimizing your exposure to lasers, and
how you can further protect yourselves
through the use of:
Protective Gear
Hygiene
Work Practices
Training
9
Health Precautions
Protective Gear
The intensity of the beam and the ability of
structures in the eye to either absorb laser
energy or amplify beam power underscore the
importance of using the appropriate eye
protection.
 Eye protection is suggested for working with any class 3
or higher laser type.
 All Class 3B and 4 laser users must use eye protection
designed for that specific wavelength and optical
density.
10
Health Precautions continued
Protective Gear continued
 Skin protection (work uniform and/or
gloves) is suggested whenever working
with Class 3 and 4 lasers.
 Suitable respirators or eye protection is
suggested whenever there is a chance for
particulate exposure.
11
Health Precautions continued
Hygiene and Work Practices
 With Class 1 and 2 lasers, normal
aversion methods are sufficient to prevent
damage.
 With Class 3 and 4 lasers, damage can
occur before any aversion method occurs.
 Avoid fumes and materials produced by
laser usage. Other hazards may be
produced by laser welding or cutting.
12
Training Practices
You can further reduce your exposure to
lasers through training on:
Engineering Practices
Work Practices
Use of Protective Gear
Health Effects Recognition
13
Training Practices
Engineering Practices
 Adequate ventilation shall be installed to
reduce noxious or potentially hazardous
fumes and vapors.
 Areas using class 3b or 4 lasers must be
isolated and exhibit signs detailing the
potential skin or eye damage.
 Shielding should be applied where
applicable.
14
Training Practices continued
Engineering Practices continued
 Windows should have necessary
coverings.
 Beam shutters, beam polarizers, and beam
filters should always be used to limit
exposure.
 Lasers unable to be seen with the naked
eye should have audible or visible warning
signs to show when in use.
15
Training Practices continued
Work Practices to Limit Exposure
 Avoid any chance to be directly exposed.
 Stop all lasers with a specified beam block.
 Erect shielding to prevent reflections or
exposure.
 Light in the work area should be as bright
as optimal for work, as the pupil would be
the smallest then.
 All non-necessary reflective surfaces
should be minimized.
16
Training Practices continued
Use of Protective Equipment
 Eye and skin protection for Class 3 and 4
lasers.
 Gloves when handling laser media and
materials used by or produced by lasers.
 Respirator if necessary for fumes and
vapors produced.
17
Training Practices continued
Occupational Health Surveillance
Workers will be advised about any local
requirements for medical qualification or
occupational health examination.
18
Training Practices continued
Learn to Recognize Signs of Adverse
Health Effects
 Short Term
 Long Term
19
Potential Health Effects
Short Term
 Redness, itchiness, or burning upon skin.
 Redness, watery eyes, minor to permanent
eye damage. Minor vision impairment to
blindness.
 Eye, nose, and throat irritation
 Nausea, or vomiting
 Nasal congestion
 Chest tightness
 Abdominal cramping
 General flu-like symptoms, and fatigue.
20
Potential Health effects
Long Term
 Chronic exposure may cause cataracts and
permanent eye damage.
Questions??
21

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Laser Safety Training

  • 1. 1 Lasers Skin or tissue surface damage inducer
  • 2. Applicability  This training is required for all personnel routinely working with or potentially exposed to Class 1M, 2M, 3R, 3B or 4 laser radiation and shall be accomplished in conjunction with initial training and re-accomplished annually, training shall be documented on AF Form 55 or electronic equivalent  This training meets the requirements of AFI 48-139 and ANSI Z136.1 for Class 3B and Class 4 laser users  If you have questions regarding this training, please contact your Unit or Installation Laser Safety Officer 2
  • 3. 3 What are Lasers?  Light Amplified by Stimulated Emission of Radiation  Lasers are extremely focused light  Three primary characteristics  Monochromatic  Coherent  Focused
  • 4. 4 Lasers are used in:  Surveying work  Surgery and other medical applications  Construction  Communications  Research
  • 5. 5 Maximum Exposure Limits Based on Laser Type  Class 1 – Normal aversion methods (blinking, turning of the head) are enough to prevent damage.  Class 2 - An exposure duration less than or equal to 0.25 seconds. Normal aversion methods (blinking, turning of the head) are normally enough to prevent damage.
  • 6. 6 Exposure Limits continued  Class 3 – Avoid any exposure. Aversion methods (blinking, turning of the head) aren’t sufficient to prevent eye damage.  Class 4 – Avoid any exposure. Aversion methods (blinking, turning of the head) aren’t sufficient to prevent eye damage. Skin damage and fire hazard.
  • 7. Nominal Hazard Zone  Maximum Permissible Exposure (MPE)  Nominal Hazard Zone = Safety Distance 7
  • 8. 8 Reduce Your Exposure Following we will discuss how we are minimizing your exposure to lasers, and how you can further protect yourselves through the use of: Protective Gear Hygiene Work Practices Training
  • 9. 9 Health Precautions Protective Gear The intensity of the beam and the ability of structures in the eye to either absorb laser energy or amplify beam power underscore the importance of using the appropriate eye protection.  Eye protection is suggested for working with any class 3 or higher laser type.  All Class 3B and 4 laser users must use eye protection designed for that specific wavelength and optical density.
  • 10. 10 Health Precautions continued Protective Gear continued  Skin protection (work uniform and/or gloves) is suggested whenever working with Class 3 and 4 lasers.  Suitable respirators or eye protection is suggested whenever there is a chance for particulate exposure.
  • 11. 11 Health Precautions continued Hygiene and Work Practices  With Class 1 and 2 lasers, normal aversion methods are sufficient to prevent damage.  With Class 3 and 4 lasers, damage can occur before any aversion method occurs.  Avoid fumes and materials produced by laser usage. Other hazards may be produced by laser welding or cutting.
  • 12. 12 Training Practices You can further reduce your exposure to lasers through training on: Engineering Practices Work Practices Use of Protective Gear Health Effects Recognition
  • 13. 13 Training Practices Engineering Practices  Adequate ventilation shall be installed to reduce noxious or potentially hazardous fumes and vapors.  Areas using class 3b or 4 lasers must be isolated and exhibit signs detailing the potential skin or eye damage.  Shielding should be applied where applicable.
  • 14. 14 Training Practices continued Engineering Practices continued  Windows should have necessary coverings.  Beam shutters, beam polarizers, and beam filters should always be used to limit exposure.  Lasers unable to be seen with the naked eye should have audible or visible warning signs to show when in use.
  • 15. 15 Training Practices continued Work Practices to Limit Exposure  Avoid any chance to be directly exposed.  Stop all lasers with a specified beam block.  Erect shielding to prevent reflections or exposure.  Light in the work area should be as bright as optimal for work, as the pupil would be the smallest then.  All non-necessary reflective surfaces should be minimized.
  • 16. 16 Training Practices continued Use of Protective Equipment  Eye and skin protection for Class 3 and 4 lasers.  Gloves when handling laser media and materials used by or produced by lasers.  Respirator if necessary for fumes and vapors produced.
  • 17. 17 Training Practices continued Occupational Health Surveillance Workers will be advised about any local requirements for medical qualification or occupational health examination.
  • 18. 18 Training Practices continued Learn to Recognize Signs of Adverse Health Effects  Short Term  Long Term
  • 19. 19 Potential Health Effects Short Term  Redness, itchiness, or burning upon skin.  Redness, watery eyes, minor to permanent eye damage. Minor vision impairment to blindness.  Eye, nose, and throat irritation  Nausea, or vomiting  Nasal congestion  Chest tightness  Abdominal cramping  General flu-like symptoms, and fatigue.
  • 20. 20 Potential Health effects Long Term  Chronic exposure may cause cataracts and permanent eye damage.