International Standards and Conformity Assessment for all electrical, electronic and related technologies



Reference EN 60645-5:2005
Title Electroacoustics - Audiometric equipment - Part 5: Instruments for the measurement of aural acoustic impedance/admittance
Project Number 15659
Abstract/Scope Applies to instruments designed primarily for the measurement of acoustic impedance/admittance in the human external acoustic meatus using a stated probe tone. It is recognized that other probe signals may also be used. The standard defines the characteristics to be specified by the manufacturer, lays down performance specifications for three types of instruments and specifies the facilities to be provided on these types. This standard describes methods of test to be used for approval testing and guidance on methods for undertaking routine calibration. The purpose of this standard is to ensure that measurements made under comparable test conditions with different instruments complying with the standard will be consistent. The standard is not intended to restrict development or incorporation of new features, nor to discourage innovative approaches. This first edition of EN 60645-5 cancels and replaces the first edition of EN 61027, published in 1991, and constitutes a technical revision.


Current Stage code 6060
Current Stage code date 2005-01-07
Current Stage code deadline 2005-09-01
Deadline date for vote  


Order Voucher  


IEC Technical Body IEC/TC 29
Reference Document IEC 60645-5:2004 (EQV)
ICS 17.140.50 - Electroacoustics
Keywords Audiological; Aural acoustic; Impedance; Admittance
Note Supersedes EN 61027:1993
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2005-01-07 2005-09-01 export to doc file  EN  FR  DE
5099 2004-12-01 2005-02-01  
5020 2004-09-03 2004-11-05  
4099 2003-11-14 2003-12-31  
4020 2003-01-31 2003-07-04  
3099 2003-01-28 2003-01-31  

Implementation Dates

date of Ratification (DOR) (1) 2004-12-01
date of Availability (DAV) (2) 2005-01-07
date of Announcement (DOA) (3) 2005-03-01
date of Publication (DOP) (4) 2005-09-01
date of Withdrawal (DOW) (5) 2007-12-01


Supersedes EN 61027:1993
Superseded by  
Normative reference (6) BIPM/IEC/IFCC/ISO/IUPAC/IUPAP/OIML:1995
HD 305 S1:1977
EN 60601-1:1990
corr. July 1994
EN 60601-1-2:2001
EN 60601-1-4:1996
EN 60645-1:2001

(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved

(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat

(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level

(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement

(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn

(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.