Hearing aids Characteristics of electrical input circuits for hearing
€165.00
Measurement microphones Methods for pressure calibration of working standard by comparison
€193.00
Specification for sound level meters
€316.00
Integrating-averaging sound level meters
Acoustics. Reference zero for the calibration of audiometric equipment equivalent threshold sound pressure levels pure tones and supra-aural earphones
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
€269.00
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
Specification for ultrasonic power measurement in liquids in the frequency range 0.5 MHz to 25 MHz
Acoustics. Audiometric test methods Sound field audiometry with pure tone and narrow-band signals
Hearing aids Magnetic field strength in audio-frequency induction loops for hearing aid purposes
Specification for instruments for the measurement of aural acoustic impedance/admittance
Code of practice for audio-frequency induction-loop systems (AFILS)
€404.00
