Ultrasonics - Fields - Guidance for the measurement and characterization of ultrasonic fields generated by medical ultrasonic equipment using hydrophones in the frequency range 0,5 to 15 MHz
€231.00
Impédancemètres ou admittancemètres utilisés en audiologie
€86.50
Acoustics. Audiometric test methods Sound field audiometry with pure tone and narrow-band signals
€193.00
Hearing aids; plugs; dimensions; identical with IEC 60090:1973 (status as of 1991)
€41.78
Équipements pour systèmes électroacoustiques. Partie 12 : applications des connecteurs pour radiodiffusion et usage analogue.
€53.50
Amendment 1 - Hearing aids. Part 2: Hearing aids with automatic gain control circuits
€22.00
ELECTROTECHNICAL VOCABULARY. ACOUSTICS AND ELECTROACOUSTICS.
€48.00
Measurement microphones - Part 1: Specifications for laboratory standard microphones
€0.00
Audiometers - Part 1: Pure-tone audiometers
Determination of noise immissions from sound sources placed near the ears - Noise immissions especially by open headphones and insert earphones
€56.17
Determination of noise immissions from sound sources placed near the ears; noise immissions especially by half-open and closed headphones except insert earphones
€48.79
Hearing aids: part 6: characteristics of electrical input circuits for hearing aids (IEC 60118-6:1984); german version HD 450.6 S1:1986
€34.30
Mechanical coupler for measurements on bone vibrators (IEC 60373:1990); german version HD 590 S1:1991.
Requirements for the declaration of the acoustic output of medical diagnostic ultrasonic equipment
€286.00
