IEC 60225 Replaced
IEC 60225:1966
Octave, half-octave and third-octave band filters intended for the analysis of sounds and vibrations
Applies to band filters commonly known as octave, half-octave and third-octave band filters of the passive or active type, the latter including amplifier elements.
CHF 40.-
This publication has been replaced by: IEC 61260:1995