Electroacoustics - Octave-band and fractional-octave-band filters - Part 2: Pattern-evaluation tests - Amendment 1 (IEC 29/912/CDV:2016); German and English version EN 61260-2:2016/prA1:2016
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— 31 стр.
Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 6: Intrinsic characteristics - In situ values of airborne sound insulation under direct sound field conditions; German version EN 1793-6:2018— 50 стр.
