Acoustics - Recommended practice for the design of low-noise workplaces containing machinery - Part 3: Sound propagation and noise prediction in workrooms (ISO/TR 11690-3:1997)
€84.58
Ergonomics - Assessment of speech communication (ISO/DIS 9921:2001); German version prEN ISO 9921:2001
€105.42
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
€34.30
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.
€69.91
Ergonomic assessment of speech communication; part 1: speech interference level and communication distances for persons with normal hearing capacity in direct communication (SIL method); identical with ISO/DIS 9921-1:1992
€48.79
Acoustics; guidelines for the design of low-noise workplaces; part 1: noise control strategies; german version prEN 31690-1:1992
€98.32
Acoustics; guidelines for the design of low-noise workplaces; part 2: noise control measures; german version prEN 31690-2:1992
Acoustics; audiometric test methods; part 3: speech audiometry (ISO/DIS 8253-3:1993)
Acoustics; reference zero for the calibration of audiometric equipment; part 7: reference threshold of hearing under free-field and diffuse-field listening conditions (ISO/DIS 389-7:1993)
Electroacoustics; specifications for personal sound exposure meters; identical with IEC 61252:1993
Acoustics - Audiometric test methods - Part 2: Sound field audiometry with pure tone and narrow-band test signals; identical with ISO 8253-2:1992
Audiometers Pure-tone audiometers
€329.00
