Occluded-ear simulator for the Measurement of earphones coupled to the ear by ear inserts; identical with IEC 60711, edition 1981
€48.79
Integrating-averaging sound level meters; identical with IEC 60804, edition 1985
€63.27
Acoustics; standard reference zero for the calibration of pure tone air conduction audiometers; identical with ISO 389:1985 (status as of 1986)
€56.17
Hearing aids; symbols and other markings on hearing aids and related equipment; identical with IEC 60118-11:1983
Hearing aids; hearing aid equipment not entirely worn on the listener; identical with IEC 60118-3:1983
€34.30
Hearing aids - Guide to hearing aid standards; Identical with IEC 60118-10:1986
€84.58
Sound calibrators; identical with IEC 60942:1988
€41.78
Hearing aids; measurement of the performance characteristics of hearing aids for quality inspection for delivery purposes; identical with IEC 60118-7:1983
Hearing aids; magnetic field streng in audio-frequency induction loops for hearing aid puroses (IEC 118-4:1981); german version HD 450.4 S1:1985
Mechanical coupler for measurements on bone vibrators (IEC 60373:1990); german version HD 590 S1:1991.
Hearing aids: part 6: characteristics of electrical input circuits for hearing aids (IEC 60118-6:1984); german version HD 450.6 S1:1986
Determination of noise immissions from sound sources placed near the ears - Noise immissions especially by open headphones and insert earphones
Determination of noise immissions from sound sources placed near the ears; noise immissions especially by half-open and closed headphones except insert earphones
Hearing aids; plugs; dimensions; identical with IEC 60090:1973 (status as of 1991)
Dimensions of electrical connector systems for hearing aids; Identical with IEC 29(Sec)255:1993