MIL-H-24146, MILITARY SPECIFICATION: HEAD, SPRINKLER, FIRE PROTECTION, FOAM WATER (02-JUN-1965)

MIL-H-24146, MILITARY SPECIFICATION: HEAD, SPRINKLER, FIRE PROTECTION, FOAM WATER (02-JUN-1965)., This specification covers foam-water fire extinguishing sprinkler heads for upright or pendant installation in overhead sprinkler systems.