NBN EN ISO 11691 : 2009
Current
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The latest, up-to-date edition.
ACOUSTICS - MEASUREMENT OF INSERTION LOSS OF DUCTED SILENCERS WITHOUT FLOW - LABORATORY SURVEY METHOD
Published date
12-01-2013
Publisher
Defines a laboratory substitution method for determination of insertion loss without flow of ducted, mostly absorbent, circular and rectangular silencers in addition to other duct elements to be used in ventilation and air-conditioning systems.
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