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3.2.4.18.(6)
OS1
ObjectiveOS1 Fire Safety
Attribution
Application
Application 1: 
Minimum sound pressure level from a fire alarm system's audible signal device, within floor areas used for occupancies.
This applies to buildings described in Sentence 1.3.3.2.(1) of Division A in which fire alarm systems are installed.
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Intent
Intent 1: 
To limit the probability that persons will not hear or distinguish fire alarm signals from ambient noises and will not be promptly notified of a fire situation, which could lead to delays in the evacuation or movement of persons to a safe place, which could lead to harm to persons.
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