Sets out special procedures which are necessary for accurate determinations of the sound power when discrete frequencies or narrow bands of noise are radiated by a source. Applies to sources whose spectrum may or may not include broad-band components upon which the prominent discrete frequencies of narrow bands of noise are superposed.

Acoustics — Determination of sound power levels of noise sources, Part 3: Precision methods for discrete-frequency and narrow-band sources in reverberation rooms

AS 1217.3-1985

Acoustics — Determination of sound power levels of noise sources, Part 3: Precision methods for discrete-frequency and narrow-band sources in reverberation rooms