Standard Svensk standard · SS-EN ISO 3745:2009

Akustik - Bestämning av ljudeffektnivåer för bullerkällor - Precisionsmetoder för ekofria och halvekofria rum (ISO 3745:2003)

Status: Upphävd · Ersätts av: SS-EN ISO 3745:2012

Omfattning
This International Standard specifies methods for measuring the sound pressure levels on a measurement surface enveloping a noise source in anechoic and hemi-anechoic rooms, in order to determine the sound power level or sound energy level produced by the noise source. It gives requirements for the test environment and instrumentation, as well as techniques for obtaining the surface sound pressure level from which the sound power level or sound energy level is calculated, leading to results which have a grade 1 accuracy.

The methods specified in this International Standard are suitable for measurements of all types of noise.

The noise source can be a device, machine, component or sub-assembly. The maximum size of the source under test depends on the radius of the hypothetical sphere (or hemisphere) used as the enveloping measurement surface.

Ämnesområden

Buller och mätmetod (14.020) Allmänt Mätning av vätskeflöde (17.120.01) Allmänt Bullermätning (17.140.01)


Produktinformation

Språk: Engelska

Framtagen av: Akustik och buller, SIS/TK 110

Internationell titel: Acoustics - Determination of sound power levels of noise sources using sound pressure - Precision methods for anechoic and hemi-anechoic rooms (ISO 3745:2003)

Artikelnummer: STD-70306

Utgåva: 2

Fastställd: 2009-08-03

Antal sidor: 60

Ersätter: SS-EN ISO 3745:2004/AC:2006 , SS-EN ISO 3745:2004

Ersätts av: SS-EN ISO 3745:2012