Instruments for the measurement of aural acoustic impedance/admittance (IEC 61027:1991); German version EN 61027:1993.
€69.91
Measurement microphones; part 2: primary method for pressure calibration of laboratory standard microphones by the reciprocity technique (IEC 61094-2:1992); German version EN 61094-2:1993
€84.58
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
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, electroacoustic; standard frequencies for measurements
€34.30
Hearing aids; hearing aids with induction pick-up coil input; identical with IEC 60118-1, edition 1983
Hearing aids; hearing aids with automatic gain control circuits; identical with IEC 60118-2, edition 1983
€41.78
Sclaes and sizes for plotting frequency characteristics and polar diagrams; identical with IEC 60263:1982
Hearing aids; measurement of electroacoustical characteristics; identical with IEC 60118-0, edition 1983
Occluded-ear simulator for the Measurement of earphones coupled to the ear by ear inserts; identical with IEC 60711, edition 1981
€48.79
Integrating-averaging sound level meters; identical with IEC 60804, edition 1985
