This is a noise control device engineered
for use with the ARTCC system. It is designed to be an integral
part of the system in both function and appearance. It is composed
of a series of exhaust noise baffles.
SOUND BAFFLE
SPECIFICATIONS AND SAFETY DATA
ASC was commissioned by the
FAA to develop a noise suppression system for the ARTCC. Great care
was taken to accommodate the stringent demands from the FAA for
safety, durability, design and ease of installation. ASC not only
met those criteria but surpassed them with the development of this
baffle.
Made of 100% welded construction of 18 gauge
galvanized and etched sheet metal, then electrostatic powder coat
painted. This is a highly scratch resistant surface that is color
matched to the existing site hardware.
The sound absorbing material used is a 2"
fiberglass panel extensively used in the HVAC industry. We have
found that this material holds up much better than foam after years
of continuous use. The fiber shedding of this panel is well below
the permissible exposure limit (REL) proposed in 1977 by the National
Institute of Occupational, Safety and Health (NIOSH) of 3.0 fibers/cc.
All cut edges of the sound absorbing material are coated with a
fiber retaining sealant. In addition the surface and edges are covered
with a spunbond polypropylene dust cover. The dust cover is then
covered with a 40% open weave monofilament plastic screen. This
final surface handles wind and any other mechanically abrasive contact.
The lifetime of the baffle unit is expected to be indefinite when
used indoors and for its intended purpose.