ASME PTC 36-2018

This Code provides measurement procedures in a variety of acoustical environments, including settings influenced by background or extraneous noise. Sound pressure level measurements or sound intensity measurements obtained using the procedures of this Code may be used to calculate sound power level. The Code also includes supplementary information on (a) Background noise and distance corrections for far-field measurements; (b) Guidance on the evaluation of measurement uncertainty and (c) General guidance for sound-pressure level measurements.