Fire and life safety hazard categories
Unsafe behaviors
Unsafe conditions
Rate of rise heat detector
12-15°F per minute temp change
Preaction sprinkler system
Dry sprinkler system activated by a smoke/heat detector. Sprinkler heads still intact unlike true dry pipe system
Class I standpipe
hose connections attached to standpipe
Class II standpipe
Used by building occupants or fire personnel. 1.5 inch hose with nozzle
Class III standpipe
Both Class I and II connections. Hose/nozzle and hose connections for fire personnel