Industrial-process control valves. Noise considerations Control valve aerodynamic noise prediction method
€374.00
Hearing aids Characteristics of electrical input circuits for hearing
€165.00
Measurement microphones Methods for pressure calibration of working standard by comparison
€193.00
Audiometers Pure-tone audiometers
€316.00
Specification for sound level meters
Integrating-averaging sound level meters
Electroacoustics. Octave-band and fractional-octave-band filters
Electroacoustics. Hearing aids Induction loop systems for hearing aid purposes. Magnetic field strength
Electroacoustics. Equipment for the measurement of real-ear acoustical characteristics of hearing aids
Industrial-process control valves. Noise considerations Laboratory measurement of noise generated by aerodynamic flow through valves
Ultrasonics. Hydrophones. Characteristics and calibration in the frequency range from 15 MHz to 40 MHz
Household and similar electrical appliances. Test code for the determination of airborne acoustical noise Particular requirements range hoods
€269.00
Household and similar electrical appliances. Test code for the determination of airborne acoustical noise Particular requirements dishwashers
Sound system equipment. Headphones and earphones associated with portable audio Maximum sound pressure level measurement methodology limit considerations Matching of sets headphones if either or both are offered separately
Electroacoustics. Sound level meters Periodic tests
