DIN EN 61260-2:2018-01 Electroacoustics - Octave-band and fractional-octave-band filters - Part 2: Pattern-evaluation tests (IEC 61260-2:2016 + AMD1:2017); German version EN 61260-2:2016 + A1:2017
2018DIN EN 61260-2:2018-01 Electroacoustics - Octave-band and fractional-octave-band filters - Part 2: Pattern-evaluation tests (IEC 61260-2:2016 + AMD1:2017); German version EN 61260-2:2016 + A1:2017