TITLE

ES&H Manual

 

DOCUMENT ID

6410 Appendix T6: Laser Labeling & Posting Requirements

 

1.0           Purpose

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.

2.0           Scope

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.

3.0           Responsibilities

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.

4.0           Protocol

4.1            Equipment Labeling

4.1.1       Manufacturer’s Labels

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.

 

Equipment labels must be positioned so they are readable and contain the following information:

  • Certification (i.e. meets CDRH requirements)
  • Identification
  • Name and address of manufacturer
  • Place, month, and year of manufacturer
  • Hazard Classification
  • Radiation output (power and wavelength) and warning logotype

4.1.3       Laser fibers

 


Figure 1:  Label required on laser fibers that can be disconnected

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

rev

summary

date

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

1.3

updated header and footer, change SOTR to TR, minor edits only, no approval needed

09.16.2021

1.2

updated TPOC form B.Manzlak to P.Collins per B.Rainey

09.05.2019

 

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

 

ISSUING AUTHORITY

TECHNICAL POINT-OF-CONTACT

APPROVAL DATE

NEXT REVIEW DATE

REVIEW CYCLE

rev

 

 

ES&H Division

Jennifer Williams

01.02.2024

01.02.2027

3 years

2.0

 

This document is controlled as an online file.  It may be printed but the print copy is not a controlled document. 

It is the user’s responsibility to ensure that the document is the same revision as the current online file.  This copy was printed on 1/4/2024.