Standard

SN EN ISO 11820:1997

Jan 1997 Current

Existing or new amendments and versions must be purchased separately.

Language German

Services Online + Pdf CHF 88.00 Online CHF 75.00

There are no extended editions available for this standard

There are no available corrigendum or amendments for this standard. Any future corrigendum and amendments will be added automatically for subscribers.

Abstract

The document specifies methods for the determination of the acoustical performance of silencers under various installation conditions (e.g. in ducts, at openings, in walls). Measurement quantities are sound pressure levels in third-octave bands or octave bands upstream and downstream from the silencer (for transmission loss measurements) or with and without the silencer (for insert in loss measurements). In addition, dynamic pressures, flow velocities and temperatures are measured at various points. Particular sound field distributions and extraneous sound are accounted for through corrections. The test report contains the acoustical loss D and the corrections applied as well as a schematic description of the installation conditions according to a specified scheme.

Products specifications

Standard from INB
Published: January 1 1997
Effective: September 1 1997
Document type: EN
Pages
ISBN:

ICS: 17.140.99
Publisher: SNV
Distributor: SNV
National Committee: INB/NK 103

Product Relations

Adopted from: ISO 11820:1996, IDT

Extended editions Extended editions (0)

Version history Related Corrigenda and Amendments (0)

Abstract

Products specifications

Product Relations