No products
View larger M00001559
New product
ASHRAE 68-1997 Standard 68-1997 -- Laboratory Method of Testing to Determine the Sound Power in a Duct (AMCA Standard 330-97)
standard by ASHRAE, 1997
In stock
The purpose of this standard is to determine, by test, the sound power radiated into an anechoically terminated duct on the supply and/or return side of air-handling equipment.