audibility of fire alarms

ICAN Acoustics can carry out audibility tests in accordance with Irish Standard I.S. 3218:2009. This standard suggests that a fire alarm/sounder should have a minimum sound level of either 65 dB(A), or 5 dB(A) above any other noise likely to persist for a period longer than 30 s, whichever is the greater, shall be produced by [...]