IEC 60268-4:2018现行
Sound system equipment – Part 4: Microphones
出版：International Electrotechnical Committee
专家解读视频
This part of IEC 60268 specifies methods of measurement for the electrical impedance,sensitivity, directional response pattern, dynamic range and external influences of soundsystem microphones, and also details the characteristics to be specified by the manufacturer.
CEI EN IEC 60268-4:2019 - Identical
EN IEC 60268-4:2018 - Identical
NEN-EN-IEC 60268-4:2018 en - Identical
PN-EN IEC 60268-4: 2019-01 - Identical
DS EN IEC 60268-4:2018 - Identical
DIN EN IEC 60268-4 : 2019 - Identical
OVE EN IEC 60268-4:2019 - Identical
OVE EN IEC 60268-4:2019 - Identical
DIN EN IEC 60268-4 : 2019 - Identical
