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Document History

  1. DIN EN ISO 4869-1

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    Acoustics - Hearing protectors - Part 1: Subjective method for the measurement of sound attenuation (ISO 4869-1:2018)

    • Most Recent
  2. DIN EN ISO 4869-1 - DRAFT


    Draft Document - Acoustics - Hearing protectors - Part 1: Subjective method for the measurement of sound attenuation (ISO/DIS 4869-1:2014); German version prEN ISO 4869-1:2014

    • Historical Version
  3. DIN ISO 4869-1


    Acoustics; hearing protectors; subjective method for the measurement of sound attenuation; identical with ISO 4869-1:1990

    • Historical Version