DIN EN 61669 (2002-11)现行
Electroacoustic - Equipment For The Measurement Of Real-ear Acoustical Characteristics Of Hearing Aids
出版：German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频
Defines the general requirements for test equipment designed for use in measuring the real-ear acoustical characteristics of hearing aids and describes the terminology used.
Supersedes DIN IEC 29-410-CD. (11/2002) DRAFT 2013 issued in August 2013. (08/2013)
SS EN 61669 Ed. 1 (2001) - Identical
UNE EN 61669:2003 - Identical
I.S. EN 61669:2001 - Identical
IEC 61669 Ed. 1.0 - Identical
NF EN 61669:2002 - Identical
NBN EN 61669:2002 - Identical
BS EN 61669:2001 - Identical
SN EN 61669:2001 - Identical
SN EN 61669:2016 - Identical
BS EN 61669:2016 - Identical
NBN EN 61669:2016 - Identical
SS EN 61669 Ed. 2 (2016) - Identical
EN 61669:2016 - Identical
NF EN 61669:2016 - Identical
