This International Standard provides performance requirements and methods for testing the performance of analogue, sampled-data, and digital implementations of bandpass filters that comprise a filter set or spectrum analyser. The extent of the passband region of a filter's relative attenuation characteristic is a constant percentage of the midband frequency for all filters of a given bandwidth. An instrument complying with the requirement of this standard may contain any number of bandpass filters covering any desired frequency range.
DS/EN 61260:1996 history
2002DS/EN 61260/A1:2002 Electroacoustics - Octave-band and fractional-octave-band filters
1996DS/EN 61260:1996 Electroacoustics - Octave-band and fractional-octave-band filters