EN 61672-1:2003

SLOVENSKI SIST EN 61672-1:2004

STANDARD
julij 2004
Electroacoustics - Sound level meters - Part 1: Specifications (IEC 61672-1:2002)
ICS 17.140.50 Referenčna številka
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

EUROPEAN STANDARD EN 61672-1
NORME EUROPÉENNE
EUROPÄISCHE NORM February 2003

ICS 17.140.50 Parly supersedes EN 60651:1994 + A1:1994 + A2:2001 & EN 60804:2000

English version
Electroacoustics -
Sound level meters
Part 1: Specifications
(IEC 61672-1:2002)
Electroacoustique -  Elektroakustik -
Sonomètres Schallpegelmesser
Partie 1: Spécifications Teil 1: Anforderungen
(CEI 61672-1:2002) (IEC 61672-1:2002)

This European Standard was approved by CENELEC on 2003-02-01. CENELEC members are bound to
comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and
notified to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic,
Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta,
Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2003 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 61672-1:2003 E
Foreword
The text of document 29/507/FDIS, future edition 1 of IEC 61672-1, prepared by IEC TC 29,
Electroacoustics, in cooperation with the International Organization of Legal Metrology (OILM), was
submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61672-1 on
2003-02-01.
This European Standard, in conjunction with EN 61672-2, supersedes EN 60651:1994 + A1:1994 +
A2:2001 and EN 60804:2000.
The following dates were fixed:

– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2003-11-01

– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2006-02-01

Annexes designated "normative" are part of the body of the standard.
Annexes designated "informative" are given for information only.
In this standard, annexes A and ZA are normative and annexes B and C are informative.
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61672-1:2002 was approved by CENELEC as a European
Standard without any modification.

In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 61012 NOTE Harmonized as EN 61012:1998 (not modified).
IEC 61252 NOTE Harmonized as EN 61252:1995 (not modified).
IEC 60651 NOTE Harmonized as EN 60651:1994 (not modified).
IEC 60804 NOTE Harmonized as EN 60804:2000 (not modified).
__________
- 3 - EN 61672-1:2003
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
This European Standard incorporates by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate places in the text and the
publications are listed hereafter. For dated references, subsequent amendments to or revisions of any
of these publications apply to this European Standard only when incorporated in it by amendment or
revision. For undated references the latest edition of the publication referred to applies (including
amendments).
NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
Publication Year Title EN/HD Year
CISPR 16-1 1999 Specification for radio disturbance - -
and immunity measuring apparatus
and methods
Part 1: Radio disturbance
and immunity measuring apparatus

1)
IEC 60050-801 - International Electrotechnical - -
Vocabulary (IEV)
Chapter 801: Acoustics and
electroacoustics
1)
IEC 60942 - Electroacoustics - Sound calibrators - -

1)
2)
IEC 61000-4-2 - Electromagnetic compatibility (EMC) EN 61000-4-2 1995
Part 4-2: Testing and measurement
techniques - Electrostatic discharge
immunity test
IEC 61000-6-2 1999 Part 6-2: Generic standards - Immunity EN 61000-6-2 2001
(mod) for industrial environments

ISO/IEC GUIDE 1995 Guide to the expression of uncertainty - -
EXPRES in measurement (GUM)
1)
ISO Publication - International vocabulary of basic and - -
ISBN 92-67- general terms in metrology
01075-1
1)
Undated reference.
2)
Valid edition at date of issue.

NORME CEI
INTERNATIONALE IEC
61672-1
INTERNATIONAL
Première édition
STANDARD
First edition
2002-05
Electroacoustique –
Sonomètres –
Partie 1:
Spécifications
Electroacoustics –
Sound level meters –
Part 1:
Specifications
© IEC 2002 Droits de reproduction réservés ⎯ Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in any
utilisée sous quelque forme que ce soit et par aucun procédé, form or by any means, electronic or mechanical, including
électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing from
microfilms, sans l'accord écrit de l'éditeur. the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch  Web: www.iec.ch
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X
PRICE CODE
Commission Electrotechnique Internationale
International Electrotechnical Commission
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Pour prix, voir catalogue en vigueur
For price, see current catalogue

61672-1 © IEC:2002 – 3 –
CONTENTS
FOREWORD.5
1 Scope.9
2 Normative references .11
3 Terms and definitions .11
4 Reference environmental conditions .21
5 Performance specifications.21
5.1 General .21
5.2 Adjustments to indicated levels .27
5.3 Directional response.29
5.4 Frequency weightings.31
5.5 Level linearity.39
5.6 Self-generated noise .41
5.7 Time weightings F and S .41
5.8 Toneburst response.43
5.9 Response to repeated tonebursts .47
5.10 Overload indication .47
5.11 Under-range indication .49
5.12 Peak C sound level .49
5.13 Reset .51
5.14 Thresholds .51
5.15 Display.51
5.16 Analogue or digital output.53
5.17 Timing facilities .53
5.18 Radio frequency emissions and disturbances to a public power supply.53
5.19 Crosstalk.55
5.20 Power supply.55
6 Environmental, electrostatic, and radio frequency criteria .57
6.1 General .57
6.2 Static pressure .57
6.3 Air temperature .57
6.4 Humidity.59
6.5 Electrostatic discharge .59
6.6 AC power frequency and radio frequency fields .59
7 Provision for use with auxiliary devices .63
8 Marking .63
9 Instruction manual .65
Annex A (normative) Maximum expanded uncertainties of measurement .75
Annex B (informative) AU weighting.77
Annex C (informative) Specifications for time-weighting I (impulse).79
Bibliography.85

61672-1 © IEC:2002 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
ELECTROACOUSTICS – SOUND LEVEL METERS –
Part 1: Specifications
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote
international cooperation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, the IEC publishes International Standards. Their preparation is
entrusted to Technical Committees; any IEC National Committee interested in the subject dealt with may
participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. The IEC collaborates closely with the International
Organization for Standardization (ISO) in accordance with conditions determined by agreement between the
two organizations.
2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an
international consensus of opinion on the relevant subjects since each Technical Committee has representation
from all interested National Committees.
3) The documents produced have the form of recommendations for informational use and are published in the
form of standards, technical specifications, technical reports, or guides and they are accepted by the National
Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61672-1 has been prepared by IEC technical committee 29:
Electroacoustics, in cooperation with the International Organization of Legal Metrology
(OIML).
This standard, in conjunction with IEC 61672-2, cancels and replaces IEC 60651, Sound level
meters, and IEC 60804, Integrating-averaging sound level meters.
The text of this standard is based on the following documents:
FDIS Report on voting
29/507/FDIS 29/515/RVD
Full information on the voting for the approval of this standard can be found in the report of
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 3.
Annex A forms an integral part of this standard.
Annexes B and C are for information only.
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