NF EN ISO 7235
NF EN ISO 7235

NF EN ISO 7235

January 2004
Standard Cancelled

Acoustics — Laboratory measurement procedures for ducted silencers and air-terminal units — Insertion loss, flow noise and total pressure loss

Le présent document prescrit les méthodes pour déterminer en laboratoire, la perte d''insertion, le bruit d''écoulement et la perte de pression totale des silencieux en conduit et unités terminales. Il ne s''applique pas aux silencieux réactifs utilisés pour les véhicules à moteur.

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Main informations

Collections

National standards and national normative documents

Publication date

January 2004

Number of pages

60 p.

Reference

NF EN ISO 7235

ICS Codes

17.140.01   Acoustic measurements and noise abatement in general
91.120.20   Acoustics in building. Sound insulation

International kinship

ISO 7235:2003

European kinship

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

Le présent document prescrit les méthodes pour déterminer en laboratoire, la perte d''insertion, le bruit d''écoulement et la perte de pression totale des silencieux en conduit et unités terminales. Il ne s''applique pas aux silencieux réactifs utilisés pour les véhicules à moteur.
Replaced standards (1)
NF EN ISO 7235
NF EN ISO 7235
July 1995
Standard Cancelled
Acoustics. Measurement procedures for ducted silencers. Insertion loss, flow noise and total pressure loss.

Standard replaced by (1)
NF EN ISO 7235
NF EN ISO 7235
August 2009
Standard Current
Acoustics - Laboratory measurement procedures for ducted silencers and air-terminal units - Insertion loss, flow noise and total pressure loss (ISO 7235:2003)

Le présent document prescrit les méthodes pour déterminer en laboratoire, la perte d''insertion, le bruit d''écoulement et la perte de pression totale des silencieux en conduit et unités terminales. Il ne s''applique pas aux silencieux réactifs utilisés pour les véhicules à moteur. Il vient à l''appui des exigences essentielles de la Directive Nouvelle approche 98/37/CE, amendée par la Directive 98/79/CE ainsi que de la Directive Nouvelle approche 2006/42/CE, sur les machines.

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