Historical

ISO 11691:1995

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

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.

CONTENT PROVIDER
International Organization for Standardization [iso]

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Acoustics -- Laboratory measurement procedures for ducted silencers and air-terminal units -- Insertion loss, flow ...
Acoustics -- Measurements on silencers in situ
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