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About This Item

 

Full Description

Specifies a laboratory substitution method to determine the insertion loss of ducted circular and rectangular silencers without flow, as well as other duct elements for use in ventilating and air-conditioning systems.

 

Document History

  1. ISO 11691:2020


    Acoustics - Measurement of insertion loss of ducted silencers without flow - Laboratory survey method

    • Most Recent
  2. ISO 11691:1995

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    Acoustics -- Measurement of insertion loss of ducted silencers without flow -- Laboratory survey method

    • Historical Version