Provisional head and torso simulator for acoustic measurements on air conduction hearing aids; identical with IEC 60959:1990
€98.32
Coupleur mécanique destiné aux mesures des ossivibrateurs
€77.67
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
€34.30
Hearing aids; measurement of the performance characteristics of hearing aids for quality inspection for delivery purposes; identical with IEC 60118-7:1983
€48.79
Hearing aids; methods of measurement of performance characteristics of hearing aids under simulated in situ working conditions; IEC 60118-3:1983 modified.
€63.27
Hearing aids; numerical expression of acoustical performance characteristics
Hearing aids; hearing aid equipment not entirely worn on the listener; identical with IEC 60118-3:1983
Hearing aids; symbols and other markings on hearing aids and related equipment; identical with IEC 60118-11:1983
Hearing aids; methods of measurement of characteristics of hearing aids with bone vibrator output; identical with IEC 60118-9, edition 1985.
HEARING AIDS. METHODS OF MEASUREMENT OF PERFORMANCE CHARACTERISTIC OF HEARING AIDS UNDER SIMULATED IN SITU WORKING CONDITIONS
€64.00
HEARING AIDS. MEASUREMENT OF THE PERFORMANCE CHARACTERISTICS OF HEARING AIDS FOR QUALITY INSPECTION FOR DELIVERY PURPOSE
€61.00
HEARING AIDS. HEARING AIDS WITH AUTOMATIC GAIN CONTROL CIRCUITS
€41.00
Hearing aids; measurement of electroacoustical characteristics; identical with IEC 60118-0, edition 1983
€77.20
Occluded-ear simulator for the Measurement of earphones coupled to the ear by ear inserts; identical with IEC 60711, edition 1981
Appareils de correction auditive - Définitions et méthodes de mesure
€166.33
