Nfpa.72

NFPA 72 — National Fire Alarm and Signaling Code (Overview)

NFPA 72

For occupants: The next time you hear a fire drill, remember that every flash, every decibel, and every wire behind the wall exists because of the silent, powerful authority of .

Whether you are a building owner, facility manager, or a fire protection enthusiast, here is what you need to know about the current standards and how they keep us safe. What is NFPA 72? nfpa.72

You cannot just blow canned smoke at a detector. NFPA 72 requires a "calibrated test method" using a magnet or a meter to ensure the detector is within its listed sensitivity range (e.g., 0.5% to 3.5% obscurity). If it is too sensitive (nuisance alarms) or not sensitive enough (miss fire), it must be cleaned or replaced. NFPA 72 — National Fire Alarm and Signaling