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EN ISO 7235:2009 Standard

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  Keywords:

#bands #frequency #sound #airflow #loss

  Directive

Machinery (MD) Directive (2006/42/EC)

  Last Official Journal reference

Monday 7th of September 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

Friday 18th of December 2009

  Cessation

This standard will be withdrawn on 2027-01-20

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