BS 4196-1:1981

Заменен

Sound power levels of noise sources, Precision methods for determination of sound power levels for broad-band sources in reverberation rooms

Заменен на

BS 4196-1:1991

ICS

17.140.01 Acoustic. Including acoustic insulation / Акустические измерения и борьба с шумами в целом. Включая звукоизоляцию