ISO 12124:2001 PDF

Scope: This International Standard specifies procedures and requirements for measuring the real-ear acoustical characteristics of hearing aids. Its purpose is to ensure that the same measurements made on a given hearing aid on a given human ear and a given hearing aid, following the procedures described and using equipment complying with the requirements of IEC 61669, give substantially the same results. Measurements of real-ear acoustical characteristics of hearing aids which apply non-linear or analytical processing techniques are valid only for the test signals used and conditions employed. These measurements should be performed in accordance with the hearing aid manufacturer's recommendations as they may require specific test signals or test conditions outside the scope of this International Standard.

ISO 12124:2001 Referenced Document

GB/T 15173 Electroacoustics.Sound calibrators*， 2010-09-02 Update
GB/T 16296-1996 Acoustics--Audiometric test methods--Part 2: Sound field audiometry with pure tone and narrow-band test signals
IEC 61669 Electroacoustics - Measurement of real-ear acoustical performance characteristics of hearing aids*， 2015-11-01 Update

2001 ISO 12124:2001 Acoustics - Procedures for the measurement of real-ear acoustical characteristics of hearing aids