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Maintenance. Require the contractor provide an operation and
maintenance manual for the system and also provide hands-on training for maintenance
and shop personnel.
SAFETY AND HEALTH CONSIDERATIONS
. For those systems where the replacement air
proper operation of the system, consider posting the following sign at each entrance to
the ventilated space:
KEEP DOOR CLOSED
THIS DOOR MUST BE CLOSED FOR
Noise. Use engineering controls as the primary means of protecting
personnel from hazardous noise. It is cheaper to eliminate potential noise problems
during the design or procurement stages, than it is to retrofit or modify after installation.
Determine the acoustic environment of any kind of activity in advance, both to fulfill the
design goals and prevent the need for corrections at a later stage.
Criteria. Specify the lowest noise emission level that is technologically
and economically feasible. Each DOD service branch has a permissible noise level
specified in its safety and health manual. It is not adequate to specify that individual
pieces of equipment do not produce noise levels in excess of that permissible level.
Determine the sound power levels for each piece of equipment. Use this information to
predict the acoustic characteristics of the workspace and the resulting ambient noise
level. Specify the appropriate noise control method if the total predicted ambient noise
level is in excess of the requirements in the applicable safety and health manual. For
additional information on noise control refer to UFC 3-450-01, Design: Noise and
Vibration Control; DHEW 79-117, NIOSH Industrial Noise Control Manual; OSHA Pub
3048, Noise Control, A Guide for Workers and Employees; and NAVFAC P-970,
Protection Planning in the Noise Environment.
Respiratory Protection. 29 CFR 1910.134(d), Respiratory Protection
specifies requirements for respiratory protection. Consult with an industrial hygienist or
occupational health specialist to determine the appropriate type of respiratory protection
required for each process.
Breathing Air. Breathing air for supplied air respirators must meet grade
D standards as required by 29 CFR 1910.134(d) and defined in Compressed Gas
Association Specification for Air G-7.1. Breathing air couplings must not be compatible
with outlets for non-respirable worksite air or other gas systems. Consider providing