DIN EN ISO 4869-2 Berichtigung 1:2007-09
Отменен
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 4869-2:1995/AC:2007
— 2 стр.
