The normal threshold of hearing for pure tones by earphone listening
€172.00
Specification for an artificial mastoid for the calibration of bone vibrators used in hearing aids and audiometers
€281.00
Hearing aids. Methods for measurement of electroacoustical characteristics of hearing aid equipment not entirely worn on the listener
Hearing aids Method for measurement of characteristics hearing with induction pick-up coil input
Methods of measurement electro-acoustical characteristics hearing aids Hearing with automatic gain control circuits
Electroacoustics. Audiometric equipment Equipment for pure-tone audiometry
€329.00
Ultrasonics. Shear-wave elastography Specifications for the user interface
Hearing aids Methods for measurement of the performance characteristics hearing quality inspection on delivery
€201.00
Hearing aids Methods for measurement of electroacoustical characteristics
Ultrasonics. Fields. Guidance for the measurement and characterization of ultrasonic fields generated by medical ultrasonic equipment using hydrophones in the frequency range 0.5 MHz to 15 MHz
Specification for measurement microphones Primary method free-field calibration of laboratory standard by the reciprocity technique
Acoustics. Standard reference zero for the calibration of pure tone air conduction audiometers
Hearing aids Electromagnetic compatibility (EMC). Product standard
Hearing aids Methods for measurement of electroacoustical characteristics hearing with automatic gain control circuits
Sound system equipment Objective rating of speech intelligibility by transmission index
