ANSI/ASA S3.25:2009 (R2014)

This standard gives acoustical performance criteria for a device that provides acoustic impedance and exhibits sound-pressure distributions approximating the median adult human ear between an earmold and the eardrum. Two specific embodiments whose performance conforms to these criteria are described. As a simulation of part of a median adult human ear, the occluded ear simulator is suitable for use in test systems such as manikins, where the complete ear is to be simulated.