Items tagged with SOURCE STRENGTH Files

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Determination in the field of structure-borne sound source strength of building service equipment - A pilot study with inter-laboratory comparisons and a proposal for a Nordtest method (NT TR 616)

NT TR 616

  • A pilot project with an inter-laboratory comparison (round robin) has been performed, where a modified heavy duty washing machine has been circulated for tests among 7 laboratories. The main goal of this pilot project was to find out whether a simple substitution method could be applied to determine the structure-borne sound source strength of typical building service equipments.

File size: 1.93 MB Download

Acoustics: Determination in the field of structure-borne sound source strength of building service equipment (NT ACOU 117)

NT ACOU 117

  • This substitution method may be used as a survey method in the field to determine structure borne sound source strength of machines and building service equipment with light-framed structures or elastic supports on heavy-weight concrete floors.

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”.