DIN EN ISO 4869-2 Berichtigung 1-2007 声学.听力保护器.第2部分:听力保护器损坏后A型加权声级有效性的评估(ISO 4869-2:1994)
Acoustics - Hearing protectors - Part 2: Estimation of effective A-weighted sound pressure levels when hearing protectors are worn (ISO 4869-2:1994); German version EN ISO 4869-2:1995, Corrigenda to DIN EN ISO 4869-2:1995-08; German version EN ISO 4869-2: