40.97 End of interruption of work - split/merged Oct 12, 1996
CEN
CEN/TC 165 Waste water engineering
European Norm
This European standard establishes a technical basic for design, calculation, installation and test methods of Air Admittance Valve Ventilating pipework Systems (AVS) which normally operate in gravity systems inside buildings. This standard specifies the performance requirements and methods of test for AVS.
ABANDON
prEN 12380-1
40.97
End of interruption of work - split/merged
Oct 12, 1996