Defines performance requirements of negative pressure driven sewerage systems carrying domestic waste water independent of their material. Also describes additional performance characteristics of importance to the specifiers, designers, constructors and operators of vacuum sewerage systems. Does not include provision for the evaluating of system conformity.

ONORM EN 1091:1997 - Identical

DIN EN 1091 (1997-02) - Identical

BS EN 1091:1997 - Identical

NEN EN 1091:1997 - Identical

UNE EN 1091:1997 - Identical

SS EN 1091 Ed. 1 (1997) - Identical

NS EN 1091 Ed. 1 (1997) - Identical

I.S. EN 1091:1997 - Identical

UNI EN 1091:1998 - Identical

NF EN 1091:1997 - Identical

NBN EN 1091:1997 - Identical

EN 1091:1996 - Identical