Acoustics; standard reference zero for the calibration of pure-tone bone conduction audiometers (identical with ISO 7566:1987); german version EN 27566:1991— 12 стр.
Electroacoustics - Simulators of human head and ear - Part 6: Mechanical coupler for the measurements on bone vibrators (IEC 60318-6:2007); German version EN 60318-6:2008— 17 стр.
Audiometers - Part 3: Auditory test signals of short duration for audiometric and neuro-otological purposes (IEC 60645-3:1994); German version EN 60645-3:1995— 8 стр.
Reference zero for the calibration of audiometric equipment - Part 3: Reference equipment threshold force levels for pure tones and bone vibrators (ISO 389-3:1994, including Technical Corrigendum 1:1995)— 16 стр.