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Doors in buildings: Airborne sound insulation (NT ACOU 069)

NT ACOU 069

  • This NORDTEST method describes how to determine the sound reduction index of doors in buildings, i.e., in the presence of surrounding party walls whose contribution to the sound transmission may be significant.

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Nordtest

Nordtest is a trademark of Nordic cooperation in conformity assessment. The emphasis of Nordtest is to develop, promote and innovate Nordic test methods and pre-normative activity. Nordtest endeavours to remove technical barriers to trade and promotes the concept: “Approved once, accepted everywhere”.