This standard specifies the technical requirements, test methods, inspection rules and marking requirements for water mist nozzles. This standard applies to open water mist nozzles in automatic sprinkler systems.
GA 33-1992 history
1992GA 33-1992 Performance requirements and test methods for water mist nozzles of automatic sprinkler systems
GA 33-1992 Performance requirements and test methods for water mist nozzles of automatic sprinkler systems was changed to GB 5135.3-2003 Automatic sprinkler system--Part 3: Water mist nozzles.