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DOCUMENT ID: |
6420 Non-Ionizing Radiant Energy (i.e.:
Radio Frequency (RF), Microwave, and Static Magnetic Fields) |
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Jefferson Lab has determined that working with non-ionizing radiant energy can carry an unmitigated Risk Code >2 and requires supervisor consideration prior to commencement of work. An Operational Safety Procedure (OSP) is written for work considered to be Risk Code of >2 in accordance with ES&H Manual Chapter 3210 Work Planning, Control, and Authorization Process. |
1.0
Purpose
Jefferson Lab uses and produces a variety of non-ionizing radiant energy, including:
· Radio Frequency and Microwave,
· Electromagnetic,
· Static Magnetic, and
· Ultraviolet, Visible and Infrared Radiation
To ensure the health and safety of individuals, equipment, and the environment this type of energy requires appropriate controls and mitigation. This chapter describes the controls and practices used to reduce the hazards; and it lists the minimum precautions necessary to ensure personnel and equipment safety.
This program satisfies applicable
federal, state, and local requirements as outlined in ES&H Manual Chapter 2410 Appendix T1 Hazard
Issues List.
2.0
Scope
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This chapter and its associated appendices does not apply to microwave ovens located in a “common” or “break” area when used in accordance with manufacturer’s instructions. Enter a Facilities Management Work Request if break area equipment is damaged or not working properly. Use of microwave ovens for other than manufacturer’s instructions is considered a Risk Code >2 and requires a Work Control Document. |
This chapter addresses the following sources of non-ionizing radiant energy:
· Radio Frequency and Microwave
· Electromagnetic
· Static Magnetic
For information regarding
ultraviolet, visible and infrared radiation see ES&H Manual Chapter
6122 Hot Work (i.e. Welding, Cutting, Brazing, and Grinding) Safety
Program; ES&H Manual Chapter 6410
Laser Safety Program, or contact
Industrial Hygiene for a hazard evaluation.
3.0
Responsibilities
NOTE: Management authority may be delegated at the discretion of the responsible manager.
3.1
Anyone
at Jefferson Lab
· Request an equipment/area hazard evaluation from System Owner if compliance with these requirements is unclear.
·
Seek medical
monitoring from Occupational Medicine if metallic objects in the
body or bioelectronic devices are a concern.
3.2
Qualified
RF Surveyor
· Complete and maintain appropriate RF Survey Training.
3.3
System
Owner
· Complete a Work Control Document for magnets or RF under your authority that have been determined to be Risk Code >2.
· Perform equipment/area hazard evaluation and provide appropriate mitigation. Ensure it is in place and functioning.
3.4
Supervisor/Subcontracting
Officer’s Technical Representative
(SOTR)/Sponsor
· Ensure warning labels are posted in accordance with requirements.
· Provide appropriate RF and Magnetic Field Survey Training.
· Identify mitigation requirements.
4.0
Technical Appendices
4.1
Radio
Frequency (RF)
Jefferson
Lab considers radio
frequency (RF) energy to be a hazard issue. The degree of danger from
RF energy is directly related to: the source power level; distance and
shielding; and the frequency, or wavelength, of the radio waves. ES&H Manual Chapter
6420 Appendix T1 Radio Frequency Survey provides the process steps for
determining when an RF survey is required; how to schedule it; performance and
documentation requirements; and when follow-up actions are required.
4.2
Work Control Documentation for
Static Magnetic Fields
When a Task Hazard
Analysis indicates that a specialty magnets poses an unmitigated Risk Code>2
a work control
document (WCD) is required to
ensure hazard
issues are
addressed and appropriately mitigated. ES&H Manual Chapter
6420 Appendix T2 Operational Safety Procedure Development for Qualifying Static
Magnetic Fields provides the requirements for this WCD.
4.3
Engineering and Administrative
Controls for Static Magnetic Fields
Jefferson Lab recognizes that
magnets, and any associated external fringe static magnetic fields, may be dangerous. It is therefore required that they be
controlled and the designated area provides warning of the potential
hazards. ES&H Manual Chapter
6420 Appendix T3 Engineering and Administrative Controls for Static Magnetic
Fields defines Jefferson Lab’s minimum engineering controls for this type
of equipment; the administrative controls – including area postings; and how
these are updated, repaired, and maintained.
4.4
Medical Monitoring Requirements
People who have metallic objects,
or bioelectronic devices in their bodies (including
but not limited to: cardiac pacemakers, implanted defibrillators, insulin
pumps, or surgical clips) may experience serious, even fatal, medical outcomes
when exposed to static magnetic fields. ES&H Manual 6420
Appendix T4 Medical Monitoring for Static Magnetic Field Exposure provides
the process steps to be followed to ensure the safety of these individuals.
5.0
Revision Summary
Revision 1 – 07/16/12 – Updated to reflect current laboratory operations.
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ISSUING
AUTHORITY |
TECHNICAL POINT-OF-CONTACT |
APPROVAL
DATE |
EXPIRATION
DATE |
REV. |
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ESH&Q Division |
07/16/12 |
07/16/15 |
1 |
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