Registration number (WIID)Project No.TitleStatus
4174ISO 266:1975Acoustics — Preferred frequencies for measurementsAtcelts
22495ISO 389-3:1994Acoustics — Reference zero for the calibration of audiometric equipment — Part 3: Reference equivalent threshold force levels for pure tones and bone vibratorsAtcelts
22491ISO 8253-3:1996Acoustics — Audiometric test methods — Part 3: Speech audiometryAtcelts
4564ISO/R 507:1970Withdrawal of ISO/R 507-1970Atcelts
4100ISO 226:1987Acoustics — Normal equal-loudness level contoursAtcelts
38976ISO 389-7:2005Acoustics — Reference zero for the calibration of audiometric equipment — Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditionsAtcelts
22800ISO 389-7:1996Acoustics — Reference zero for the calibration of audiometric equipment — Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditionsAtcelts
40278ISO 389-6:2007Acoustics — Reference zero for the calibration of audiometric equipment — Part 6: Reference threshold of hearing for test signals of short durationAtcelts
4375ISO 389:1991Acoustics — Standard reference zero for the calibration of pure-tone air conduction audiometersAtcelts
22496ISO 389-4:1994Acoustics — Reference zero for the calibration of audiometric equipment — Part 4: Reference levels for narrow-band masking noiseAtcelts
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