NEN-EN-ISO 3744
Acoustics - Determination of sound power levels of noise sources using sound pressure - Engineering method for an essentially free field over a reflecting plane
inactive
| Organization: | NEN |
| Publication Date: | 1 April 2006 |
| Status: | inactive |
| Page Count: | 81 |
| ICS Code (Acoustic measurements and noise abatement in general): | 17.140.01 |
| ICS Code (Safety of machinery): | 13.110 |
scope:
This International Standard specifies methods for determining the sound power level or sound energy level of a noise source from sound pressure levels measured on a surface enveloping the noise source (machinery or equipment) in an environment that approximates to an acoustic free field near one or more reflecting planes. The sound power level (or, in the case of noise bursts or transient noise emission, the sound energy level) produced by the noise source, in frequency bands or with A-weighting applied, is calculated using those measurements.
Document History
October 1, 2010
Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Engineering methods for an essentially free field over a reflecting plane
This International Standard specifies methods for determining the sound power level or sound energy level of a noise source from sound pressure levels measured on a surface enveloping the noise...
August 1, 2009
Acoustics - Determination of sound power levels of noise sources using sound pressure - Engineering method in an essentially free field over a reflecting plane
This lnternational Standard specifies a method for measuring the sound pressure levels on a rneasurement surface enveloping a noise source, under essentially free-field conditions near one or more...
NEN-EN-ISO 3744
April 1, 2006
Acoustics - Determination of sound power levels of noise sources using sound pressure - Engineering method for an essentially free field over a reflecting plane
This International Standard specifies methods for determining the sound power level or sound energy level of a noise source from sound pressure levels measured on a surface enveloping the noise...
October 1, 1995
Acoustics - Determination of sound power levels of noise sources using sound pressure - Engineering methods in a essentially free-field conditions over a reflecting plane
Specifies a method of messurement. Gives requirements for the test environment and instrumentation, as well as techniques for obtaining the surface sound pressure level from which the sound power...