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



Reference EN 61094-3:1995
Title Measurement microphones - Part 3: Primary method for free-field calibration of laboratory standard microphones by the reciprocity technique
Project Number 6773
Abstract/Scope Applies to laboratory standard microphones meeting the requirements of IEC 61094-1. The principles of the method are applicable to other types of microphones. In particular, microphones which fulfil the requirements of IEC 61094-1, when fitted with a special adaptor, may also be calibrated according to this standard when the adaptor is removed. Specifies a primary method of determining the free-field sensitivity so as to establish a reproducible and accurate basis for the measurement of sound pressure under free-field conditions.[
]This publication supersedes IEC 60486.


Current Stage code 6060
Current Stage code date 1995-12-12
Current Stage code deadline 1996-09-01
Deadline date for vote  


Order Voucher  


IEC Technical Body IEC/TC 29
Reference Document IEC 61094-3:1995 (EQV)
ICS 17.140.50 - Electroacoustics
33.160.50 - Accessories
Keywords Microphone; Measurement; Calibration; Free-field calibration; Reciprocity technique
Note EN following parallel vote
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 1995-12-12 1996-09-01 export to doc file  EN
5099 1995-11-28 1995-12-28  
5062 1995-10-16 1995-11-28  
5020 1995-05-05 1995-09-15  
1090 1995-05-03 1995-09-03  

Implementation Dates

date of Ratification (DOR) (1) 1995-11-28
date of Availability (DAV) (2) 1995-12-12
date of Announcement (DOA) (3) 1996-03-01
date of Publication (DOP) (4) 1996-09-01
date of Withdrawal (DOW) (5) 1996-09-01


Superseded by prEN 61094-3
Normative reference (6) ISO 9613-1:1993
HD 245.2 S1:1983
IEC 60050-801:1984
EN 61094-1:1994
EN 61094-2:1993

(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.