HH-I-545 Revision B:1971
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
INSULATION, THERMAL AND ACOUSTICAL (MINERAL FIBER, DUCT LINING MATERIAL)
03-22-1988
English
Covers two types of insulation, mineral, fiber, for interior surfaces of plenums, ducts and other airhandling equipment which gives sound attenuation in systems with air up to 250 deg.F
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