UL Releases New Edition of UL 217 Standard for Smoke Alarms

smoke alarm photo

UL has released a new edition of UL 217, the standard for smoke alarms. The 7th edition can be purchased from the UL website. The 7th edition includes new requirements for: multi-criteria smoke alarms, extended temperature range testing, lower beam limits for liquid fuel fire, smoldering smoke test clarification, and 21 day Corrosion Test.


“1.1 These requirements cover electrically operated single and multiple station smoke alarms intended for open area protection in indoor locations and portable smoke alarms used as “travel” alarms in accordance with:
a)    National Fire Alarm and Signaling Code, NFPA 72;

b)    Standard for Recreational Vehicles, NFPA 501C, for smoke alarms intended for use in recreational vehicles;

c)    For smoke alarms intended for use in recreational boats:

1)    Fire Protection Standard for Pleasure and Commercial Motor Craft, NFPA 302,

2)    AC and DC Electrical Systems on Boats, ABYC E-11, and

3)    The applicable regulations of the United States Coast Guard.”

*Description from the UL website



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