DIN EN ISO 3743-2/A1:2013-08
Отменен
Acoustics - Determination of sound power levels of noise sources using sound pressure - Engineering methods for small, movable sources in reverberant fields - Part 2: Methods for special reverberation test rooms - Amendment 1 (ISO 3743-2:1994/DAM 1:2013); German version EN ISO 3743-2:2009/prA1:2013
