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EN ISO 7235:2009 Standard

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  Keywords:

#frequency #bands #sound #loss #airflow

  Directive

Machinery Regulation ((EU) 2023/1230)

  Last Official Journal reference

Thursday 12th of March 2026

  Description:

Acoustics - Laboratory measurement procedures for ducted silencers and air-terminal units - Insertion loss, flow noise and total pressure loss (ISO 7235:2003)

  Purpose

This International Standard specifies methods for determining - the insertion loss, in frequency bands, of ducted silencers with and without airflow, - the sound power level, in frequency bands, of the flow noise (or regenerated sound) generated by ducted silencers, - the total pressure loss of silencers with airflow, and  the transmission loss, in frequency bands, of air-terminal unit

  Publication

Tuesday 29th of December 2009

  Related Standards

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EN ISO 11957:2009

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EN ISO 11691:2009

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EN ISO 11546-2:2009

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EN ISO 11546-1:2009

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Acoustics - Determination of sound insulation performances of enclosures - Part 1: Measurements under laboratory conditions (for d...

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