Download Yale Environmental Health & Safety User Laser Safety Audit and Inspection Checklist

Yale Environmental Health & Safety
135 College Street, Suite 100
New Haven, CT 06510-2483
T 203 785-3550 F 203 785-7588
www.yale.edu/ehs
User Laser Safety Audit and Inspection Checklist
Date of Audit:
Auditors Name:
Location of Laser System:
Note: Not all of these items may be applicable to your laser
LASER SYSTEM INFORMATION:
Manufacturer:
Model: Serial number:
Class:
Laser Type:
Tunable Y/N Wavelength(s):
Power/Energy output:
CW/Single Pulse/Multiple Pulse/Combination:
Pulse Duration:
PRF:
Beam Divergence:
Emergent Beam Diameter:
Laser is Q-Switched/Mode locked:
Y
N
NOTES:
LASER POSTING, LABELING AND SECURITY MEASURES:
Entrances properly posted:
Comments:
Room security adequate:
Comments:
Y
N
Y
N
Laser status indicator outside room:
Comments:
Y
Laser class label in place:
Comments:
N
Laser hazard label in place:
Comments:
Laser aperture label in place:
Comments:
Y
Y
Y
N
N
N
LASER UNIT SAFETY CONTROLS:
Protective housing in place:
Comments:
Y
Interlock housing:
Comments:
N
Y
N
Interlock on housing functioning:
Comments:
Beam shutter present:
Comments:
Y
Y
Y
N
N
Beam shutter functioning:
Comments:
Key operation:
Comments:
Y
N
N
Laser activation indicator on Console:
Comments:
Beam power meter:
Comments:
Y
Y
N
N
Emergency shutoff available:
Comments:
Y
N
ENGINEERING SAFETY CONTROLS:
Laser secured to table:
Comments:
Y
N
Laser optics secured to prevent stray beams:
Comments:
Laser at eye level:
Comments:
Y
N
Beam is enclosed:
Comments:
Y
N
Beam barriers in place:
Comments:
Y
Beam stops in place:
Comments:
N
Y
N
Beam condensed or enlarged:
Comments:
Beam focused:
Comments:
Y
Y
N
N
Beam intensity reduced through filtration:
Comments:
Fiber optics used:
Comments:
N
N
Y
Remote viewing of beam:
Comments:
Y
Y
N
Y
N
Windows in room covered:
Comments:
Y
N
Reflective materials kept out of beam path:
Comments:
Y
Beam management Documented:
Comments:
Y
N
Physical evidence of stray beams:
Comments:
Y
N
Class 4 diffuse reflection hazard:
Comments:
Y
N
N
ADMINISTRATIVE SAFETY CONTROLS:
Authorization up-to-date:
Comments:
Authorization posted:
Comments:
SOP up-to-date:
Comments:
SOP posted:
Comments:
Y
N
Y
Y
Y
N
N
N
Emergency contact list posted:
Comments:
Y
N
Laser safety guidelines posted:
Comments:
Y
N
Laser safety policy manual available:
Comments:
Y
N
OTHER LASER SAFETY MEASURES:
Eye exam requirement met:
Comments:
Y
N
Proper laser eye protection available:
Comments:
Proper skin protection available:
Comments:
Y
Y
N
All users have met training requirement:
Comments:
Y
NON BEAM HAZARDS:
Toxic laser media in use:
Comments:
Y
N
Fume hood for dye mixing:
Comments:
Y
Cryogens in use:
Comments:
N
Y
N
N
N
Compressed gasses in use:
Comments:
Y
High voltage power hazard’:
Comments:
N
Y
N
Optical tables properly grounded:
Comments:
Collateral radiation hazard:
Comments:
Explosion hazard:
Comments:
Fire hazard:
Comments:
Y
Y
Y
N
N
N
Y
N
LGAC production (LGAC is Laser Generated Aerosol Component):
Comments:
Y
N
HAZARD ANALYSIS: LASER BEAM
MPE1
@time1
@wavelength1
MPE1
@time2
@wavelength2
MPE3
@time3
@wavelength3
NHZ: Direct beam
@MPE
Lens on Laser
@MPE
Diffuse beam
@MPE
Reflectivity
viewing angle
Optical fiber
@MPE
Eyewear: Required OD1
@MPE
Eyewear: Required OD2
@MPE
Beam path Laser controlled area:
Totally enclosed
Y
N
Class3b
Y
N
Y
N
Limited open
Y
N
Class 4
Totally open
Y
N
Temporary
Potential for stray beams
Y
Non reflective surfaces in path
Flammable/combustible material
NOTES:
N
Y
N
Y
N
Y
N
HAZARD ANALYSIS: NON-BEAM HAZARDS
Possible airborne contaminants
Base material(s) of targets:
Lasergases:
Dyes/solvents:
Class4 laser radiation interacts with target material in the absence of mechanical ventilation.
Secondary containment for dye/solvent reservoirs is absent.
T
F
Reactive and/or toxic gases are used to generate laser radiations.
Laser gases are used in a flow-through mode.
T
T
T
F
F
NOTES:
Potential for electric hazards
The equipment is not listed and labeled by an independent testing laboratory.
There is no emergency “off” switch in the laser electrical circuit.
T
T
F
T
F
F
Employees are not authorized and qualified to work on electrical equipment.
If the answer to above is true, go to next section.
There are bare metal terminal plugs near internal power transformers.
There are bare metal connections in access panels.
T
There is no provision to discharge, short, and ground capacitors.
Grounding sticks and shorting straps are not in good condition.
T
F
F
T
T
F
F
F
NOTES:
Potential for exposure to plasma or collateral radiation
The laser has high voltage, in excess of 5kV.
T
F
The laser has a thyratron switch accessible during service.
The process uses a carbon dioxide laser.
The target material is metal.
T
T
T
F
F
F
The discharge tube is accessible and made of quartz.
T
The output of the flash lamp is accessible.
F
T
F
The laser is operated with interlocks defeated and the
Protective housing removed.
T
F
NOTES:
Potential for noise exposure
The laser is pulsed excimer lase.
T
F
The laser is transversely excited atmospheric (TEA) 7)
Carbon dioxide laser
T
F
The laser is used to dissociate gas molecules
T
F
NOTES:
Laser is used with biological materials/animals
Not Applicable
Used with live animals?
Y
N
Type of Animal?
Procedure is destructive
or
Is the laser used to ablate tissue?
non destructive to tissue
Y
N
Animal protocol id:
Has protocol been reviewed and approved by Laser safety?
Y
N
COMMENTS:
What is the Biosafety classification of material/organisms used?
BL1
BL2
BL2+
BL3
Is the process destructive or non destructive to target?
In the case of possible generation of aerosols, appropriate ventilation measures are required. Is appropriate
ventilation in use?
Y
N
Is the ventilation system approved by Biosafety Officer/Associate Biosafety Officer?
Is there a maintenance program for the ventilation system?
Is it in house or contractor provided?
In house providers:
Contractor:
Y
N
Y
N