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6410 Appendix T6: Laser Labeling & Posting Requirements |
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Jefferson Science Associates recognizes that lasers and their associated apparatus are inherently dangerous. It is, therefore, required that the materials and equipment (M&E) as well as the designated area, be labeled to provide warning of the potential hazards. This appendix delineates the labeling and posting requirements for equipment and areas; and, how to update, repair, and maintain these labels.
The requirements outlined
below apply to all Class 3B and 4
laser materials, equipment, and designated areas.
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.
3.1 Qualified Laser Workers request an equipment and area hazard evaluation from the laser safety officer (LSO) if compliance with these requirements is unclear.
3.2 Laser Safety Officer (LSO) performs M&E and area hazard evaluations and provides labels, as appropriate.
3.3
Supervisors, Technical
Representatives
(TR), and Sponsors ensure warning labels are posted
in accordance with requirements.
Do not remove manufacturers’ equipment label. Contact the LSO if labels are missing, damaged, or incorrect. Read and follow manufacturer’s warnings. Information includes:
·
certification label
·
aperture label
· identification label
4.1.2 Original Equipment Manufacturer (OEM) or Custom-built Lasers/Systems
Follow American National Standards Institute (ANSI) labeling requirements and controls or Center for Devices and Radiological Health (CDRH) requirements. Contact LSO for evaluation and/or labeling requirements.
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Equipment labels must be positioned so they are
readable and contain the following information:
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Figure 1:
Label required on laser fibers that can
be disconnected
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Note: Laser Optical Fiber
Systems – Optical fibers or optical fiber cables attached to Class 3B or
Class 4 lasers or laser systems shall not be disconnected prior to
termination of transmission of the beam into the fiber. LOTO shall be applied
at the laser source to prevent inadvertent personnel exposure from an un-terminated
or severed fiber. In cases where laser radiation above the applicable Maximum
Permissible Exposure (MPE) can be made accessible by disconnection of a
connector, the connector shall bear a label or tag bearing the words
“Hazardous Laser Radiation when Disconnected”. |
4.2
Laser enclosures
4.2.1
Interlocked
laser enclosures must be posted with a sign indicating:
4.2.1.1
the
enclosure is interlocked
4.2.1.2
the
class of laser(s) inside the enclosure
Figure 2:
example of interlocked laser enclosure sign
4.2.2
Non-Interlocked
laser enclosures must be posted with a sign indicating:
4.2.2.1
the
enclosure is non-interlocked
4.2.2.2
the
class of laser(s) inside the enclosure
Figure 3:
example of non-interlocked laser enclosure sign
4.3
Area Posting Requirements
4.3.1
Class 3B and Class 4 Laser Controlled-Areas
(LCAs) – require a danger or warning signal
word box
Figure 4: Typical/Example of Laser Controlled Area posting
4.3.2
During Times of Service/Alignment
During times of service and other
times when a temporary laser-controlled area is established, an ANSI NOTICE
sign is required. This sign is posted only during the time when service is in
progress.
Figure 5:
Typical/Example of alignment posting
4.4
Update,
Repair, or Maintenance to Labels
Anyone at Jefferson Lab may request new, update, repair, or maintenance to a laser hazard label.
Contact the LSO and state the label needing review.
o If it is determined that the label is defective, the LSO will rectify the situation.
o If no hazard is found – the LSO informs the concerned party(s) of the determination.
5.0
Revision History
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summary |
date |
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2.0 |
- revisions made
per IA-2023-01-01-01 - updated
appendix to reflect current laboratory operations; appendix title - added Note to
3.0 - TPOC change
from BManzlak to JWilliams - general
formatting updates including headers & footers (+color), cross-links,
bulleting, etc. by JAllen, ES&H Manual Editor |
01.02.2024 |
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1.3 |
updated header and footer, change SOTR
to TR, minor edits only, no approval needed |
09.16.2021 |
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1.2 |
updated TPOC form B.Manzlak to
P.Collins per B.Rainey |
09.05.2019 |
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periodic
review, no changes per
TPOC |
12.22.2015 |
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1.1 |
TPOC
changed from DOwen to BManzlak |
07.01.2014 |
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1.0 |
updated
to reflect current laboratory operations |
12.06.2010 |
