Historical
ANSI S12.5-1990 (R1997)
Reference Sound Sources, Requirements for the Performance and Calibration of
Contains performance requirements for reference sound sources that are to be used in conjunction with measurements of the noise emission of machinery or for certain other types of acoustical measurements. The standard also contains information on procedures to be followed in calibrating a reference sound source to determine the sound power that it emits into a free field above a reflecting plane.
Acoustical Society of America [asa]