Devices to prevent pollution by backflow of potable water. Air gap with non-circular overflow (unrestricted). Family A. Type B.
STANDARD published on 31.7.2008
Designation standards: BS EN 13077:2008
Note: WITHDRAWN
Publication date standards: 31.7.2008
The number of pages: 18
Approximate weight : 54 g (0.12 lbs)
Country: British technical standard
Category: Technical standards BS