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Cross References: ISO 226:1987*ISO 389:1991*ISO 389-2:1994 *ISO 389-3:1994*ISO 8253-2:1992*ISO 266:1997 *ISO 8253-1:1989*EN ISO 266:1997*
 

Document History

  1. BS EN ISO 389-7:2019


    Acoustics. Reference zero for the calibration of audiometric equipment-Reference threshold of hearing under free-field and diffuse-field listening conditions

    • Most Recent
  2. BS EN ISO 389-7:2005+A1:2016


    Acoustics. Reference zero for the calibration of audiometric equipment-Reference threshold of hearing under free-field and diffuse-field listening conditions

    • Historical Version
  3. BS EN ISO 389-7:2005


    Acoustics. Reference zero for the calibration of audiometric equipment. Reference threshold of hearing under free-field and diffuse-field listening conditions

    • Historical Version
  4. BS EN ISO 389-7:1998

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    Acoustics. Reference zero for the calibration of audiometric equipment-Reference threshold of hearing under free-field and diffuse-field listening conditions

    • Historical Version