NAIMA: North American Insulation Manufacturers
Association.
OSHA: United States Occupational Safety and Health
Administration.
Panel: (1) Fabricated section of metal making up the
structural shell of a piece of mechanical equipment. (2)
Patch of sheet metal used for closing a service opening.
Particulate: Any non-adhered substance present in the
HVAC system that can be removed by contact
vacuuming.
Permanent: The life of the system.
Plastic Plug: Round polyethylene cap used to close 1"-3"
openings in sheet metal duct. (Note: the materials used
in the manufacture of these devices often exceed the
indices for flame spread and smoke spread as set forth
in NFPA 90A & 90B)
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