Hearing aids Methods for measurement of electroacoustical characteristics hearing aid equipment not entirely worn on the listener
€269.00
Specification for personal sound exposure meters
Hearing aids Electromagnetic compatibility (EMC). Product standard
€165.00
Hearing aids Methods for measurement of electroacoustical characteristics hearing with automatic gain control circuits
Specification for ultrasonic power measurement in liquids in the frequency range 0.5 MHz to 25 MHz
Specification for an artificial mastoid for the calibration of bone vibrators used in hearing aids and audiometers
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
Hearing aids Characteristics of electrical input circuits for hearing
€81.00
Hearing aids Magnetic field strength in audio-frequency induction loops for hearing aid purposes
Sound system equipment Objective rating of speech intelligibility by transmission index
Safety of machinery. Electrical equipment machines Requirements for HV voltages above 1000 V a.c. or 1500 d.c. and not exceeding 36 kV
€374.00
Electroacoustics. Audiometric equipment Instruments for the measurement of auditory evoked potentials
Electroacoustics — Personal sound exposure meters
Electroacoustics. Measurement microphones Absolute pressure calibration of at low frequencies using calculable pistonphones
American National Standard for Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40 GHz Amendment 1: Test Site Validation
€79.00
