IEC 60118-1:1995+AMD1:1998 CSV

1 Scope
2 Normative references
3 Definitions
4 Test conditions
  4.1 General
  4.2 Residual output level
  4.3 Magnetic field source
5 Test procedure
  5.1 Strength of magnetic field source
  5.2 Locating the hearing aid for test
  5.3 Normal operating conditions for the hearing aid
  5.4 Basic frequency response
  5.5 Frequency response with full-on gain control setting
  5.6 Maximum sensitivity level at the reference test
      frequency
  5.7 Effect of gain control position on frequency response
  5.8 Harmonic distortion
6 Equivalent acoustic input

Specifies a method of determining the electroacoustic performance of hearing aids fitted with an induction pick-up coil and used in an audio-frequency magnetic field. The induction pick-up performance is measured in a loop simulating conditions of use in room applications.This consolidated version consists of the third edition (1995) and its amendment 1 (1998). Therefore, no need to order amendment inaddition to this publication.