Fixed firefighting systems - Components for sprinkler and water spray systems - Part 2: Wet alarm valve assemblies (includes Amendment A1:2001); German version EN 12259-2:1999 + A1:2001— 27 стр.
Fixed firefighting systems - Components for sprinkler and water spray systems - Part 2: Wet alarm valve assemblies; German version EN 12259-2:1999/A2:2005— 8 стр.
Fixed firefighting systems - Components for sprinkler and water spray systems - Part 2: Wet alarm valve assemblies; German version EN 12259-2:1999/A2:2005— 8 стр.