I.S. EN 60268-4:2004被替代
Sound System Equipment - Part 4: Microphones
出版：National Standards Authority of Ireland
专家解读视频
Defines 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.
SS EN 60268-4 Ed. 2 (2004) - Identical
IEC 60268-4 Ed. 3.0 - Identical
NF EN 60268-4:2005 - Identical
NBN EN 60268-4:2005 - Identical
DIN EN 60268-4 (2004-07) - Identical
BS EN 60268-4:2004 - Identical
SN EN 60268-4:1999 - Identical
