ASA S12.56-1999 Acoustics - Determination of Sound Power Levels of Noise Sources Using Sound Pressure - Survey Method Using an Enveloping Measurement Surface over a Reflecting Plane ANSI S12.56-1999; ISO 3746: 1995 [Replaced: ASA S12.36]
This international standard is one of the ISO 3740 series.
ASA S12.56-1999 history
1999ASA S12.56-1999 Acoustics - Determination of Sound Power Levels of Noise Sources Using Sound Pressure - Survey Method Using an Enveloping Measurement Surface over a Reflecting Plane ANSI S12.56-1999; ISO 3746: 1995 [Replaced: ASA S12.36]