专家解读视频
Applicable to drain and sewer systems, which operate essentially under gravity, from the point where the sewage leaves a building or roof drainage system, or enters a road gully, to the point where it is discharged into a treatment works or receiving water.
ONORM EN 752-4:1998 - Identical
DIN EN 752-4 (1997-11) - Identical
BS EN 752-4:1998 - Identical
NEN EN 752-4:1998 - Identical
SN EN 752-4:1997 - Identical
NF EN 752-4:1997 - Identical
I.S. EN 752-4:1998 - Identical
UNI EN 752-4:1999 - Identical
NS EN 752-4 Ed. 1 (1997) - Identical
SS EN 752-4 Ed. 1 (1997) - Identical
UNE EN 752-4:1998 - Identical
