DIN EN ISO 9614-1:2009-11 Acoustics - Determination of sound power levels of noise sources using sound intensity - Part 1: Measurement at discrete points (ISO 9614-1:1993); German version EN ISO 9614-1:2009
2009DIN EN ISO 9614-1:2009-11 Acoustics - Determination of sound power levels of noise sources using sound intensity - Part 1: Measurement at discrete points (ISO 9614-1:1993); German version EN ISO 9614-1:2009
2009DIN EN ISO 9614-1:2009 Acoustics - Determination of sound power levels of noise sources using sound intensity - Part 1: Measurement at discrete points (ISO 9614-1:1993); English version of DIN EN ISO 9614-1:2009-11