Methods for testing and rating fan coil units, unit heaters and unit coolers. Acoustic performance; without additional ducting.
STANDARD published on 31.1.1978
Designation standards: BS 4856-4:1978
Note: WITHDRAWN
Publication date standards: 31.1.1978
The number of pages: 12
Approximate weight : 36 g (0.08 lbs)
Country: British technical standard
Category: Technical standards BS