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DOCUMENT ID: |
6640
Appendix T1 High Noise
Hazard Evaluation and Area Monitoring |
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1.0
Purpose
A High Noise Hazard Evaluation and subsequent area monitoring is required when individual exposure is suspected to be at or above 85 dBA. This appendix provides recognized high noise conditions; the process steps used to schedule and obtain a hazard evaluation; and how area monitoring is implemented.
2.0
Scope
Personal noise dosimetry is required when work is regularly conducted within a “high noise” area, or upon request. If high noise is found to be a concern, appropriate personal protective equipment (PPE), monitoring, and training is initiated.
The process steps for this procedure are performed in coordination with ES&H Manual Chapter 6640 Hearing Conservation Program.
3.0
Responsibilities
NOTE: Management authority may be delegated at the discretion of the responsible manager.
3.1 Anyone at Jefferson Lab
· Request a High Noise Hazard Evaluation if you recognize possible high noise conditions.
3.2
Supervisor/Subcontracting
Officer’s Technical Representative (SOTR)/Sponsor
· Ensure individuals under your authority, who work in, or are otherwise exposed to, high noise levels, are informed, and appropriate hearing protection is utilized in accordance with ES&H Manual Chapter 6620 Personal Protective Equipment (PPE) Program and ES&H Manual 6800 Occupational Medicine.
· Perform High Noise Hazard Evaluations for areas/equipment when requested, or identified.
· Initiate required monitoring.
· Provide recommendations for engineering controls and PPE.
4.0
Process Steps
Unless otherwise stated, anyone at Jefferson Lab may perform the process steps outlined below.
4.1
High
Noise Conditions Recognition
Conditions which suggest that noise may be a hazard issue
include:
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Ringing, muffling, numbness,
or other unusual sensations after exposure to a noise source.
· Ambient noise makes conversation, at a normal level, difficult.
· Tools that produce high noise on a regular or sporadic basis.
· When listed on an individual’s Skills Requirements
List.
Other considerations
include: warnings/cautions provided in equipment’s owner manuals, and
accumulated noise of two or more “safe” sources.
4.2
High Noise Hazard Evaluation
Request a High Noise Hazard Evaluation from Industrial Hygiene when high noise symptoms are recognized.
· Concerned individuals are allowed to observe the evaluation process.
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IF
NOISE LEVEL (NL) IS: |
THEN |
AND |
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NL > 100 dBA (i.e.: NL is greater than
or equal to 100 dBA.) |
Dual Hearing Protection is required. Engineering controls are initiated for permanent
installations. |
1. The Supervisor
and area owner are informed. 2. The
following activities are initiated: · Area Monitoring assigned in accordance
with Industrial Hygiene Department procedures. · Medical Monitoring in accordance with ES&H Manual
Chapter 6800 Appendix T1 Medical Monitoring · Personal Protective Equipment (PPE) in
accordance with ES&H
Manual Chapter 6620 PPE Program · Postings Installed in
accordance with ES&H
Manual Chapter 6640 T3 High Noise Posting Requirements |
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90 dBA< NL<100 dBA (i.e.: NL is greater than
or equal to 90 dBA but less than 100 dBA |
Hearing Protection is required. Engineering controls should be initiated. |
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85 dBA< NL<90 dBA (i.e.: NL is greater than
or equal to 85 dBA but less than 90 dBA |
Hearing Protection is required. |
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<85 dBA (i.e.: NL is less than 85
dBA) |
Hearing Protection is NOT required. |
1.
The concerned party(s) is informed of the determination. 2.
Alternative solutions are discussed if the concern is not satisfied. |
Monitoring is required for any area recognized, or suspected to be at or above 85 dBA. Industrial Hygiene provides appropriate monitoring in accordance with required regulations and standards per department procedures. Monitoring may be requested for any area at Jefferson Lab through Industrial Hygiene.
5.0
Revision Summary
Revision 1 – 04/16/12 – Update to reflect current laboratory operations.
Revision 0 – 08/31/06 – Original content.
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ISSUING
AUTHORITY |
TECHNICAL POINT-OF-CONTACT |
APPROVAL
DATE |
EXPIRATION
DATE |
REV. |
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ESH&Q Division |
04/16/12 |
04/16/17 |
1 |
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