Acoustics - Determination of sound immission from sound sources placed close to the ear - Part 2: Technique using a manikin (ISO 11904-2:2021); German version EN ISO 11904-2:2021
Edition 2021-06

Acoustics - Reference zero for the calibration of audiometric equipment - Part 4: Reference levels for narrow-band masking noise (ISO 389-4:1994); German version EN ISO 389-4:1998
Edition 1999-07

Terminal Equipment (TE) - Telephony for hearing impaired people - Characteristics of telephone sets that provide additional receiving amplification for the benefit of the hearing impaired; English version ETS 300488:1996
Edition 1996-08

Terminal Equipment (TE) - Telephony for the hearing impaired - Electrical coupling of telephone sets to hearing aids; English version ETS 300679:1996
Edition 1997-11

Acoustics - Hearing protectors - Part 1: Subjective method for the measurement of sound attenuation (ISO 4869-1:2018); German version EN ISO 4869-1:2018
Edition 2019-10

Ships and marine technology - Graphical symbols for technical documentation - Part 36: Radio equipment, teleprinter and communication systems
Edition 1999-01

Acoustics - Terminology
Edition 2009-12

Hearing protectors - Guidance on selection of individual fit testing methods; German version EN 17479:2021
Edition 2022-01

Ergonomics - Accessible design - Sound pressure levels of spoken announcements for products and public address systems (ISO 24504:2014); German version EN ISO 24504:2016
Edition 2016-12

Business TeleCommunications (BTC) - Planning of loudness rating and echo values for private networks digitally connected to the public network; English version ETS 300283:1994
Edition 1994-09