Audiological equipment - Part 5: Instruments for the measurement of aural acoustic impedance/admittance (Revision of IEC 61027:1991) (IEC 29/534/CDV:2003); German version prEN 60645-5:2003
€111.40
Acoustics - Reference zero for the calibration of audiometric equipment - Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions (ISO/CD 389-7:2003)
€77.20
Acoustics - Loudness scaling by means of categories (Categorial loudness scaling) (ISO/CD 16832:2003)
€84.58
Specification for an artificial mastoid for the calibration of bone vibrators used in hearing aids and audiometers
€269.00
Speech communication in work places under the influence of disturbing noise; terms and definitions, connexions
€34.30
Electric hearing aids; connecting cords for earphones
€24.39
Speech audiometer; terminology, requirements, testing
Acoustics - Determination of occupational noise exposure - Engineering method (ISO/DIS 9612:2007); German version prEN ISO 9612:2007)
€128.22
Acoustics - Reference zero for the calibration of audiometric equipment - Part 9: Preferred test conditions for the determination of reference hearing threshold levels (ISO/CD 389-9:2005)
€69.91
Ergonomics - Assessment of speech communication (ISO/DIS 9921:2001); German version prEN ISO 9921:2001
€105.42
Acoustics; pure tone air conduction threshold audiometry for hearing conservation purposes (identical with ISO 6189:1983); german version EN 26189:1991.
€63.27
Acoustics; reference levels for narrow-band masking noise (identical with ISO 8798:1987); german version EN 28798:1991
€41.78
Acoustics; audiometric test methods; part 1: basic pure tone air and bone conduction threshold audiometry; identical with ISO 8253-1:1989.
Audiometers; part 2: equipment for speech audiometry (revision of IEC 60645); identical with IEC 29(Central Office)157
€56.17
Audiogram form for pure tone audiometers
