NF EN 60268-4:2005被替代
Sound System Equipment - Part 4: Microphones
出版：Association Francaise de Normalisation
专家解读视频
Specifies methods of measurement for the electrical impedance, sensitivity, directional response pattern, dynamic range and external influences of sound system microphones, and also gives recommendations as to characteristics to be specified.
Indice de Classement: C97-304 Supersedes NFC 97 320. (03/2000) Supersedes NFC 97 304 (03/2005)
SS EN 60268-4 Ed. 2 (2004) - Identical
IEC 60268-4 Ed. 3.0 - Identical
NBN EN 60268-4:2005 - Identical
I.S. EN 60268-4:2004 - Identical
DIN EN 60268-4 (2004-07) - Identical
BS EN 60268-4:2004 - Identical
SN EN 60268-4:1999 - Identical
I.S. EN 60268-4:2010 - Identical
BS EN 60268-4:2010 - Identical
NBN EN 60268-4:2010 - Identical
DIN EN 60268-4 (2011-01) - Identical
SS EN 60268-4 Ed. 3 (2011) - Identical
