This part of GB 5135 specifies the requirements, test methods and inspection rules for sprinkler system deluge alarm valves. This section applies to deluge alarm valves in automatic sprinkler systems.
2003GB 5135.5-2003 Automatic sprinkler system Part 5: Deluge alarm valves
GB 5135.5-2003 Automatic sprinkler system Part 5: Deluge alarm valves has been changed from GA 125-1996 Automatic sprinkler systems performance requirements and test methods for deluge alarm valves.