Method of testing HVAC air ducts.
2006
Document Number: NL ASH 126 : 2006
Sector: Mechanical Systems and Components for General Use
TC: NL TC EO
ICS: 23.120 - 91.140.30
This standard shall be used to determine the structural strength, dimensional stability, durability, and leakage characteristics of HVAC air ducts. 2.2 This standard does not address the following: a. Fittings b. Effects of aerosols, solid particulates, corrosive environments, or combustibility c. Long-term effects of extended service d. Seismic qualifications e. Underground ducts f. Plenums and equipment casings g. Supports for ductwork and fittings