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6410 Appendix T3:
Laser Operational Safety Procedures |
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Class
3B and Class 4 laser light poses an unmitigated risk code >2; therefore, in accordance with Chapter 3210, Work
Planning, Control, and Authorization Process, a separate
work
control document is required for each piece of
equipment or system, and the area where the laser will be located. This appendix provides guidance for
developing laser operational safety procedures (LOSP) to ensure hazard
issues,
identified through a task hazard analysis, are adequately addressed, and
appropriately mitigated, before activities involving lasers are approved and commence.
Laser OSPs address the minimum
safety requirements to mitigate hazard issues associated with lasers. This does
not preclude the need for incorporating additional activities to ensure the
safety of people, equipment, and the environment for activities associated with
laser work.
Laser operational safety procedures are considered work
control documents and follow the same requirements defined in Chapter 3310, Operational Safety
Procedure Program ,
including triennial reviews. If LOSP content is reviewed by affected parties
and found to be current and appropriate, the document need not be rewritten;
however, the same rigor of review and approval applies as if the document was
newly written.
This procedure is performed in conjunction with Chapter 6410, Laser Safety Program.
Note: Management
authority may be delegated to a task-qualified TJNAF employee at the discretion
of the responsible manager.
· must be a TJNAF employee
· develop an LOSP for particular laser equipment, system, or location in accordance with Section 4.0 below
· acquire appropriate review and approval prior to initiating the procedure
· forward an official copy of the approved LOSP to ES&H Document Control
3.2 Laser System Supervisor (LSS)
· approve the LOSP or justifies the need for revision and/or re-submittal
o if appropriate, personally inspect the relevant area with the document author and the laser safety officer prior to recommending approval
·
provide specific laser
system training and maintains record of approved users
·
ensure laser users
have all applicable training (such as LOTO, Electrical Safety, Fire Safety) as
identified in the THA
· implement the approved LOSP:
o post LOSP at the entry way or near the equipment covered by the document
o ensures affected personnel are aware of the procedure
o ensures that those who need the procedure are trained and a list is maintained of those individuals
o verifies the effectiveness of the procedures by periodic job walk-throughs and procedure reviews
o integrates self-assessment findings, continuous improvements, and lessons learned as appropriate
·
review
and update LOSP prior to expiration and whenever there is a change that
affects the laser system
3.3
Laser
Safety Officer
(LSO)
· reviews the list of subject matter experts (SME) required to approve the LOSP and ensures it is adequate for the hazards identified
· approves the LOSP or justifies the need for revision and/or re-submittal
o if appropriate, personally inspects the relevant area with the document author and the laser system supervisor prior to recommending approval
3.4 Division Safety Officer (DSO) and Department or Group Manager
· review and, if adequate, approve LOSP to ensure work processes and hazards have been addressed
· record serial number, author, appropriate expiration date, and content in the appropriate repository
· maintain a record of all active and expired LOSPs
· ensure electronic files are accessible and current
· initiate Chapter 1300, Content Review Process, for
o activities that cannot be conducted in a manner consistent with ES&H Manual requirements, as written; or
o introduce a new, anticipated, or previously unrecognized hazard
4.0
Protocol
4.1
Laser Task
Hazard Analysis
·
use the Laser
Task Hazard Analysis Worksheet to outline the steps or services required for
an area or piece of equipment. Identify
known and potentially hazards conditions, suspected causes, and
environmental concerns.
·
identify required safety procedures, practices, controls, training,
etc.
4.2
Laser Operational Safety Procedure
(LOSP) Coversheet
·
complete
the LOSP cover sheet identifying the area and equipment
·
identify
the appropriate individuals required to review and approve the document
including the subject matter expert for all hazard issues identified through
the task hazard analysis
|
Introduction |
In areas containing more
than one laser, define operational sequence or parameters. |
|
Personnel Only those authorized by the LSS are
permitted to enter the location noted on the cover sheet of this document. |
·
Training and
qualification requirements (including refresher training). ·
Medical
requirements. ·
Spectator
protection requirements. |
|
Laser |
Define · Laser system specifications. · Define laser system components. · Copy of laser operating manuals or reference the
location of the manual(s). |
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Hazards |
Define · Laser-specific
hazards. · Occupational exposure hazards beyond laser light
(e.g. fumes, noise, etc.). · Credible non-beam hazards (e.g. environmental hazards). · Describe all required personal protective equipment, including clothing requirements and materials
(e.g., no reflective jewelry) that should not be worn. Refer to Chapter 6410, Appendix T2:
Laser Hazard Evaluations and Controls. · Control of hazardous energy (includes beam and
non-beam hazards such as electrical) |
|
Laser Environment System designs, including interlocks,
require hazard evaluation review by SME. |
Define · Layout of the laser controlled area
and/or table. (Show beam location in
relation to user (waist height preferable).) · Interlock
schematic (or similar) (including smoke detector interlocks). · Room lighting conditions during laser use and
alignment procedure(s). · Targets. · Primary and all likely beam paths (open or enclosed). |
|
Written Procedure for Use and Alignment |
Provide · All process steps for laser operations – including
unattended operation controls. · Detail the requirements for laser alignment. Include
manufacturer’s protocols for alignment. See 6410-T4 “Laser alignment
guidelines”. · Provide process steps for maintenance and service. · Off-normal and emergency procedures (e.g. beam loss,
fire). |
|
Laser Controls |
· Describe all controls (Engineering,
administrative and PPE). · If a different control is recommended, describe the
rationale for not using a typical/recommended control. · Describe any filters intended to reduce power for
safer operations |
|
Required Calculations |
· Maximum permissible exposure. · Optical density. |
|
Labeling/Posting (See Chapter 6410, Appendix T5: Laser Safety Control Inspections. |
· Equipment and area labeling & posting
requirements. · Area signs. · Posting requirement for alignment mode |
·
Submit
the completed LOSP in accordance with Chapter 3310, Appendix T1: OSP and TOSP Instructions sections:
o
4.2 Submit Draft Procedure for
Initial Review
o
4.3 Submit for Electronic
Signatures (subsections
in 4.3 as well)
·
When
all reviews and approvals have been received, perform process accordance with Chapter 3310, Appendix T1: OSP and TOSP Instructions sections:
5.0
Revision
History
|
summary |
date |
|
|
2.0 |
-
revisions made per IA-2023-01-01-01 -
updated appendix to reflect current laboratory operations -
re-arranged 6410 appendices: this T3
was T1 -
added Note to 3.0 -
TPOC change from BManzlak to JWilliams -
changed this section from list to tabular format -
general formatting updates including headers & footers (+color),
cross-links, bulleting, etc. by JAllen, ES&H
Manual Editor |
01.02.2024 |
|
1.4 |
added
LOSP THA guidance per CATS#NE-2019-08-04-01 |
02.27.2020 |
|
1.3 |
- updated TPOC from BManzlak to PCollins - added: NOTE to address fiber optics;
expectation to LSS responsibilities to ensure all applicable training of the
laser user is verified; requirement to identify Control of Hazardous Energy
per CATS# NE-2019-08-03-01 |
09.20.2019 |
|
1.2 |
updated
electronic LOSP review/approval process |
09.01.2018 |
|
|
periodic
review; no changes per
TPOC |
12.22.2015 |
|
1.1 |
TPOC
changed from DOwen to BManzlak |
07.01.2014 |
|
1.0 |
updated
to reflect current laboratory operations |
12.06.2010 |
|
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ISSUING
AUTHORITY |
TECHNICAL
POINT-OF-CONTACT |
APPROVAL
DATE |
NEXT REVIEW
DATE |
REVIEW
CYCLE |
rev |
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ES&H Division |
01.02.2024 |
01.02.2027 |
3 years |
2.0 |
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