Describes relatively simple procedures for measuring and reporting certain properties of sounds produced by audible public warning devices. Methods given for measurement of C-weighted sound level and for determining 1/3 octave band containing fundamental frequency of tonal warning sounds produced by audible public warning devices at distance of 100 ft from device & at mounted height of device, and also for measuring max. level of sound from a warning sound source at heads of bystanders on ground.
ANSI/ASA S12.14-1992 history
1992ANSI/ASA S12.14-1992 Methods for the field measurement of the sound output of audible public warning devices installed at fixed locations outdoors