§ 52.140  FIRE SPRINKLER SYSTEMS.
   (A)   All unmetered fire sprinkler systems without booster facilities or chemical additives shall have a double check-detector check valve assembly as a minimum containment device.
   (B)   All unmetered fire sprinkler systems with a booster facility or chemical additives shall have a reduced pressure principle-detector assembly as a minimum containment device.
(Res. passed 9-11-2012)