DIN EN ISO 3745:2009
Acoustics - Determination of sound power levels of noise sources using sound pressure - Precision methods for anechoic and hemi-anechoic rooms (ISO 3745:2003); English version of DIN EN ISO 3745:2009-11

Standard No.

DIN EN ISO 3745:2009

Release Date

2009

Published By

German Institute for Standardization

Status

Withdraw

Replace By

DIN EN ISO 3745:2012

Latest

DIN EN ISO 3745:2017-10

Scope

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.

DIN EN ISO 3745:2009 history

• 2017 DIN EN ISO 3745:2017-10 Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Precision methods for anechoic rooms and hemi-anechoic rooms (ISO 3745:2012 + Amd 1:2017); German version EN ISO 3745:2012 + A1:2017
• 2017 DIN EN ISO 3745:2017 Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Precision methods for anechoic rooms and hemi-anechoic rooms (ISO 3745:2012 + Amd 1:2017) (includes Amendment :2017)
• 1970 DIN EN ISO 3745 A1 E:2015-04
• 2015 DIN EN ISO 3745/A1 E:2015 Draft Document - Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Precision methods for anechoic rooms and hemi-anechoic rooms - Amendment 1 (ISO 3745:2012/DAM 1:2015); German version EN IS...
• 2012 DIN EN ISO 3745:2012 Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Precision methods for anechoic rooms and hemi-anechoic rooms (ISO 3745:2012); German version EN ISO 3745:2012
• 2009 DIN EN ISO 3745:2009 Acoustics - Determination of sound power levels of noise sources using sound pressure - Precision methods for anechoic and hemi-anechoic rooms (ISO 3745:2003); English version of DIN EN ISO 3745:2009-11
• 1970 DIN EN ISO 3745 E:2000-05 Acoustics Precision method for determining sound power levels and sound energy levels of noise sources in anechoic and semi-anechoic chambers using sound pressure (draft)