Historical
ANSI/ASHRAE/SMACNA 126-2000
Method of Testing HVAC Air Ducts
Provides laboratory test procedures for the evaluation of HVAC air ducts. It may be used to determine HVAC air duct structural strength, dimensional stability, durability, and leakage characteristics.
American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. [ashrae]
