NF S31-610*NF EN ISO 11691:2020
Acoustics - Measurement of insertion loss of ducted silencers without flow - Laboratory survey method

Standard No.

NF S31-610*NF EN ISO 11691:2020

Release Date

2020

Published By

Association Francaise de Normalisation

Status

Be replaced 2009-11

Replace By

NF S31-610:2009

Latest

NF S31-610:2009

Scope

ScopeThis document specifies a laboratory surrogate method for determining the insertion loss, without flow, of circular and rectangular duct silencers, primarily absorbent, as well as other duct elements intended

NF S31-610*NF EN ISO 11691:2020 history

• 2020 NF S31-610*NF EN ISO 11691:2020 Acoustics - Measurement of insertion loss of ducted silencers without flow - Laboratory survey method
• 2009 NF S31-610:2009 Acoustics - Measurement of insertion loss of ducted silencers without flow - Laboratory survey method.