Methods for testing and rating air control devices for air distribution systems. Aerodynamic testing of variable flow rate assemblies without a heat exchanger.
STANDARD published on 22.7.1974
Designation standards: BS 4979-2:1974
Note: WITHDRAWN
Publication date standards: 22.7.1974
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Category: Technical standards BS