Instruments for the measurement of aural acoustic impedance/admittance (IEC 61027:1991); German version EN 61027:1993.
€69.91
Electroacoustics; specifications for personal sound exposure meters; identical with IEC 61252:1993
Hearing aids; part 7: measurement of the performance characteristics of hearing aids for quality inspection for delivery purposes (IEC 60118-7:1983 + IEC 118-7 AMD 1:1994); German version EN 60118-7:1993 + A1:1994.
€63.27
Sound level meters (IEC 60651:1979 + A1:1993); German version EN 60651:1994 + A1:1994
€84.58
Integrating-averaging sound level meters (IEC 60804:1985 + A1:1989 + A2:1993); German version EN 60804:1994 + A2:1994
€77.20
Hearing aids - Part 2: Hearing aids with automatic gain control circuits - measurements using broad band input signal (IEC 29(Secretariat)276:1994)
Method of measuring and specifying the performance of sounders (electroacoustic transducers for tone production) (IEC 84(Secretariat)362:1994)
Acoustic - Preferred frequencies; identical with ISO/DIS 266:1994
€34.30
Measurement microphones - Part 1: Specifications for laboratory standard microphones (IEC 61094-1:1992 + Corrigendum 1993); German version EN 61094-1:1994
€56.17
Measurement of the lowest resonance frequency of loudspeaker cones (IEC 84(Sec)379:1994)
€41.78
The absolute calibration of hydrophones using the planar scanning technique in the frequency range 0,5 MHz to 15 MHz (IEC 61101:1991); German version EN 61101:1993.
Measurement and characterisation of ultrasonic fields using hydrophones in the frequency range 0,5 MHz to 15 MHz (IEC 61102:1991 + A1:1993); German version EN 61102:1993 + A1:1994.
€105.42
Acoustics. Reference zero for the calibration of audiometric equipment Specification a standard reference using an artificial ear complying with BS 4669
€172.00
Standard reference zero for the calibration of pure tone air conduction audiometers Specification a standard using an acoustic coupler complying with BS 4668
Sound system equipment. Headphones and earphones associated with portable audio Maximum sound pressure level measurement methodology limit considerations General method for "one package equipment"
