ASA S12.54-1999 Acoustics - Determination of Sound Power Levels of Noise Sources Using Sound Pressure - Engineering Method in an Essentially Free Field over a Reflecting Plane Erratum; ANSI S12.54-1999; ISO 3744: 1994 [Replaced: ASA S12.34]
This international standard specifies method for measuring the sound pressure levels on a measurement surface enveloping a noise source.
ASA S12.54-1999 history
1999ASA S12.54-1999 Acoustics - Determination of Sound Power Levels of Noise Sources Using Sound Pressure - Engineering Method in an Essentially Free Field over a Reflecting Plane Erratum; ANSI S12.54-1999; ISO 3744: 1994 [Replaced: ASA S12.34]