ANSI/ASA S12.12:1992 (R2017)

Describes a method for in situ determination of the sound power level of noise sources in indoor or outdoor environments using sound intensity measurements. Contains information on instrumentation, installation and operation of the source, procedures for the selection of a measurement surface, methods for the sampling of sound intensity on the measurement surface, procedures for the calculation of sound power level, and techniques that can be used to quality the measurement environment.