IEC 61669 : 2.0现行
ELECTROACOUSTICS - MEASUREMENT OF REAL-EAR ACOUSTICAL PERFORMANCE CHARACTERISTICS OF HEARING AIDS
出版：International Electrotechnical Committee
专家解读视频
Provides recommendations and requirements for the measurement and estimation of the real-ear acoustical performance characteristics of air-conduction hearing aids and for the measurement of certain acoustic properties of the ear related to the application of hearing aids.
DS EN 61669 : 2016 - Identical
OVE/ONORM EN 61669 : 2003 - Identical
BS EN 61669 : 2016 - Identical
NEN EN IEC 61669 : 2016 - Identical
CEI EN 61669 : 2016 - Identical
PN EN 61669 : 2016 - Identical
DIN EN 61669 : 2013 - Identical
PN EN 61669 : 2016 - Identical
NEN EN IEC 61669 : 2016 - Identical
SN EN 61669 : 2016 - Identical
CEI EN 61669 : 2016 - Identical
NBN EN 61669 : 2016 - Identical
DS EN 61669 : 2016 - Identical
BS EN 61669 : 2016 - Identical
EN 61669 : 2016 - Identical
NF EN 61669 : 2016 - Identical
