Methods for aerodynamic testing of constant and variable dual or single duct boxes, single duct units and induction boxes for air distribution systems.
STANDARD published on 30.4.1986
Designation standards: BS 4979:1986
Note: WITHDRAWN
Publication date standards: 30.4.1986
The number of pages: 26
Approximate weight : 78 g (0.17 lbs)
Country: British technical standard
Category: Technical standards BS