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



Reference EN 61672-1:2003
Title Electroacoustics - Sound level meters - Part 1: Specifications
Project Number 13862
Abstract/Scope Gives electroacoustical performance specifications for three kinds of sound measuring instruments: - a conventional sound level meter that measures exponential time-weighted sound level; - an integrating-averaging sound level meter that measures time-average sound level; and - an integrating sound level meter that measures sound exposure level. A single instrument may make any, or all, of the three kinds of measurements. Two performance categories, class 1 and class 2, are specified in this standard. In general, specifications for class 1 and class 2 sound level meters have the same design goals and differ mainly in the tolerance limits and the range of operational temperatures. Tolerance limits for class 2 specifications are greater than, or equal to, those for class 1 specifications. Sound level meters conforming to the requirements of this standard have a specified frequency response for sound incident on the microphone from one principal direction in an acoustic free field or from random directions.


Current Stage code 6060
Current Stage code date 2003-02-14
Current Stage code deadline 2003-11-01
Deadline date for vote  


Directive(s) EMC related (2004/108/EC)
Order Voucher  


IEC Technical Body IEC/TC 29
Reference Document IEC 61672-1:2002 (EQV)
ICS 17.140.50 - Electroacoustics
Keywords Electroacoustic; Sound level; Meter
Note Together with EN 61672-2, supersedes EN 60651:1994 + A1:1994 + A2:2001 + EN 60804:2000 * Superseded by EN 61672-1:2013
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2003-02-14 2003-11-01 export to doc file  EN
5099 2003-02-01 2003-06-01  
5061 2002-11-26 2003-02-01  
5020 2002-01-25 2002-03-29  
4090 2002-01-22 2002-01-25  
4020 2000-06-02 2000-10-31  
3099 2000-05-29 2000-10-29  

Implementation Dates

date of Ratification (DOR) (1) 2003-02-01
date of Availability (DAV) (2) 2003-02-14
date of Announcement (DOA) (3) 2003-05-01
date of Publication (DOP) (4) 2003-11-01
date of Withdrawal (DOW) (5) 2006-02-01


Supersedes EN 60651:1994
EN 60651:1994/A1:1994
EN 60651:1994/A2:2001
EN 60804:2000
Superseded by EN 61672-1:2013
Normative reference (6) ISO Publication ISBN 92-67-01075-1:1993
ISO/IEC Guide :1995
CISPR 16-1:1999
IEC 60050-801:1994
EN 60942:2003
EN 61000-4-2:1995
EN 61000-6-2:2001

(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.