Measurement of airborne noise emitted by machines; engineering method for special reverberation test rooms
€69.91
Hearing aids Characteristics of electrical input circuits for hearing
€81.00
Tabular layouts of article characteristics for loudspeakers, receiver capsules, microphones and transmitter capsules
€34.30
Acoustics. Preferred reference quantities for acoustic levels.
€25.00
Assessment of working noise in the vicinity
€83.76
Noise reduction on lifts
€71.85
Grandeurs, unités et symboles d'acoustique
€74.00
Measurement of airborne noise emitted by machines; enveloping surface method and special reverberation room method; household and similar electrical appliances; general requirements
€84.58
Determination of airborne noise emitted by machines by, measurement of structure borne noise; basic requirements
€63.27
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
Hearing aids Methods for measurement of the performance characteristics hearing quality inspection on delivery
€193.00
Hearing aids Methods for measurement of the performance characteristics hearing under simulated in situ working conditions
Acoustic, electroacoustic; standard frequencies for measurements
Test code for the determination of airborne acoustical noise emitted by household and similar electrical appliances. Part 2: Particular requirements for forced draught convection heaters
€44.00
