|
|
TITLE: |
||
|
|
|||
|
DOCUMENT ID: |
6410 Appendix T1 Laser Operational Safety Procedure (LOSP) |
||
|
|
|||
Jefferson Lab has determined that
Class 3 and Class 4 laser light poses an unmitigated Risk Code>2;
therefore, in accordance with ES&H Manual
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 it is located. This Laser Operational
Safety Procedure (LOSP) has been developed to ensure hazard
issues, identified
through a Task
Hazard Analysis, are adequately addressed, and appropriately mitigated,
before activities involving lasers are approved and commenced.
LOSPs addresses minimum safety requirements
to mitigate the hazard issues associated with lasers. This does not preclude the need to
incorporate additional activities to ensure the safety of people, equipment,
and the environment for activities associated with laser work.
LOSPs
are considered work control documents and follow the same requirements as
defined in ES&H
Manual Chapter 3310 Operational Safety Procedure Program including
triennial reviews. If a LOSP’s content
is reviewed by affected parties and found to be current and appropriate, the
document need not be re-written, however the same rigor of review and approval
applies, as if the document were written as new.
The process steps for this procedure are performed in coordination with ES&H Manual Chapter 6410 Laser Safety Program.
NOTE: Management
authority may be delegated at the discretion of the responsible manager.
|
NOTE: The individual responsible for the implementation of the
document is the “Document Owner” even if another individual initiates the
document. |
· Is a Jefferson Lab employee.
· Develops a LOSP for a particular laser equipment/system or location in accordance with the Section 4.0 Process Steps of this procedure.
· Acquires appropriate review and approval signatures prior to initiating the procedure.
· Forwards an official copy of the approved LOSP to ESH&Q Document Control.
3.2 Laser System Supervisor (LSS)
· Approves the LOSP or justifies the need for revision/re-submittal.
o If appropriate, personally inspects the relevant area with the document author and the Laser Safety Officer prior to recommending approval.
·
Provides specific
laser system training and maintains record of approved users.
· Implements the approved LOSP:
o Posts the 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.
·
Reviews
and updates the LOSP prior to expiration and whenever there is a change
that affects the laser system.
· Reviews the list of subject matter experts (SME) required to approve the document and ensures it is adequate for the hazards identified.
· Approves the LOSP or justifies the need for revision/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 and Department or Group Head
· Reviews and, if adequate, approves the LOSP to ensure work processes and hazards have been addressed.
· Provides the document serial number.
· Records the serial number, Document Owner, expiration dates, and content in the Jefferson Lab authorized electronic filing system.
·
Registers the Document Owner and Department/Group
Head.
·
Maintains
a record of all active and expired LOSPs.
·
Ensures
electronic files are accessible and current.
4.0
Process
Steps
·
Use the Task
Hazard Analysis Worksheet (see ES&H Manual Chapter 3210
Appendix T1 Work Planning, Control, and Authorization Procedure) to outline the task 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.
|
NOTE: All
Class 4 lasers possess the potential to ignite fires. When these systems are installed, contact
the Laser
Safety Officer to determine whether smoke detector interlocks are
required. Systems that are located in
unique scientific installations (e.g. Halls, Tunnel, and FEL) require smoke
detector interlocks. Once installed, interlocks
are to be reviewed by the Fire
Protection Engineer. |
Step
2:
Laser Operational Safety
Procedure (LOSP) Coversheet
·
Complete
the LOSP cover sheet identifying the area/equipment.
·
Identify
the appropriate individuals required to review and approve the document
including the Subject
Matter Expert for all hazard issues identified in 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). |
|
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 ES&H Manual Chapter
6410 Appendix T2 Laser Personal Protective Equipment (PPE) (include: clothing requirements (e.g. no reflective jewelry
etc.). |
|
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 – including unattended operation
controls. · All process steps for detailed alignment – Include
manufacturer’s protocols for alignment. · Maintenance and service. · Off-normal and emergency procedures (e.g. beam loss,
fire). |
|
Laser Controls |
· Describe all controls (administrative
and engineering).
(If a different control is recommended the rationale for not using a typical/recommended
control.) |
|
Required Calculations |
· Maximum permissible
exposure. · Optical density. |
|
Labeling/Posting (See ES&H Manual Chapter
6410 Appendix T5 Laser Labeling/Posting Requirements. |
· Equipment/area labeling/posting requirements. · Area signs. |
·
Submit
the completed LOSP to appropriate individuals for review and, if found to be
acceptable, approval.
·
When
all reviews and approvals have been received, submit a copy of the completed
document to ESH&Q Document Control (x7277).
·
Post
the original at the affected area(s).
·
Provide
copies to Document Owner and Division Safety Officer.
5.0
Revision
Summary
Revision 1 – 12/06/10
– Updated to
reflect current laboratory operations.
|
|
ISSUING
AUTHORITY |
TECHNICAL POINT-OF-CONTACT |
APPROVAL
DATE |
EXPIRATION
DATE |
REV. |
|
|
|
ESH&Q Division |
12/06/10 |
12/06/15 |
1 |
|