DIN 45681 Berichtigung 2:2006-08
声学 噪声音调成分的测定和用于评估噪声干扰的音调调整的测定 DIN 45681:2005-03 的勘误表 带 CD
Acoustics - Determination of tonal components of noise and determination of a tone adjustment for the assessment of noise immissions, Corrigenda to DIN 45681:2005-03, with CD