EN 61672-3:2013

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Elektroakustik - Schallpegelmesser - Teil 3: Periodische EinzelprüfungElectroacoustique - Sonomètres - Partie 3: Essais périodiquesElectroacoustics - Sound level meters - Part 3: Periodic tests17.140.50ElektroakustikaElectroacousticsICS:Ta slovenski standard je istoveten z:EN 61672-3:2013SIST EN 61672-3:2014en01-marec-2014SIST EN 61672-3:2014SLOVENSKI
STANDARDSIST EN 61672-3:20081DGRPHãþD

EUROPEAN STANDARD EN 61672-3 NORME EUROPÉENNE
EUROPÄISCHE NORM December 2013
CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B - 1000 Brussels
© 2013 CENELEC -
All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61672-3:2013 E
ICS 17.140.50 Supersedes EN 61672-3:2006
English version
Electroacoustics -
Sound level meters -
Part 3: Periodic tests (IEC 61672-3:2013)
Electroacoustique -
Sonomètres -
Partie 3: Essais périodiques (CEI 61672-3:2013)
Elektroakustik -
Schallpegelmesser -
Teil 3: Periodische Einzelprüfung (IEC 61672-3:2013)
This European Standard was approved by CENELEC on 2013-11-04. 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 CEN-CENELEC Management Centre 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 CEN-CENELEC Management Centre has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
This document supersedes EN 61672-3:2003. EN 61672-3:2013 includes the following significant technical changes with respect to EN 61672-3:2003. In this second edition, conformance to specifications is demonstrated when a) measured deviations from design goals do not exceed the applicable acceptance limits, and
b) the uncertainty of measurement does not exceed the corresponding maximum-permitted uncertainty, with both uncertainties determined for a coverage probability of 95 %. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 61672-3:2013 was approved by CENELEC as a European Standard without any modification. SIST EN 61672-3:2014

- 3 - EN 61672-3:2013 Annex ZA (normative)
Normative references to international publications with their corresponding European publications The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
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 IEC 60942 - Electroacoustics - Sound calibrators EN 60942 - IEC 61094-5 - Measurement microphones
Part 5: Methods for pressure calibration of working standard microphones by comparison EN 61094-5 - IEC 61094-6 - Measurement microphones
Part 6: Electrostatic actuators for determination of frequency response EN 61094-6 - IEC 61183 - Electroacoustics - Random-incidence and diffuse-field calibration of sound level meters EN 61183 - IEC 61672-1 - Electroacoustics - Sound level meters
Part 1: Specifications EN 61672-1 - IEC 61672-2 - Electroacoustics - Sound level meters
Part 2: Pattern evaluation tests EN 61672-2 - IEC 62585 - Electroacoustics - Methods to determine corrections to obtain the free-field response of a sound level meter EN 62585 - ISO/IEC Guide 98-3 - Uncertainty of measurement
Part 3: Guide to the expression of uncertainty in measurement (GUM:1995) - - ISO/IEC Guide 99 - International vocabulary of metrology - Basic and general concepts and associated terms (VIM) - -
IEC 61672-3 Edition 2.0 2013-09 INTERNATIONAL STANDARD NORME INTERNATIONALE Electroacoustics – Sound level meters –
Part 3: Periodic tests
Electroacoustique – Sonomètres –
Partie 3: Essais périodiques
INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE R ICS 17.140.50 PRICE CODE CODE PRIX ISBN 978-2-8322-1078-9
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IEC:2013 CONTENTS FOREWORD . 3 1 Scope . 5 2 Normative references . 5 3 Submission for testing . 6 4 Conformance . 6 5 Preliminary inspection . 7 6 Power supply . 7 7 Environmental conditions . 8 8 General test requirements . 8 9 Sound calibrator . 8 9.1 General . 8 9.2 Information for operation . 9 9.3 Information for testing . 9 9.4 Calibration of the sound calibrator . 9 10 Indication at the calibration check frequency . 9 11 Self-generated noise . 9 11.1 Microphone installed . 9 11.2 Microphone replaced by the electrical input-signal device . 10 12 Acoustical signal tests of a frequency weighting . 10 13 Electrical signal tests of frequency weightings . 12 14 Frequency and time weightings at 1 kHz . 13 15 Long-term stability . 14 16 Level linearity on the reference level range. 14 17 Level linearity including the level range control . 14 18 Toneburst response . 15 19 C-weighted peak sound level . 16 20 Overload indication . 16 21 High-level stability . 17 22 Documentation . 17
61672-3
IEC:2013 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION ____________
ELECTROACOUSTICS –
SOUND LEVEL METERS –
Part 3: Periodic tests
FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). 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. 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 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 IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 61672-3 has been prepared by IEC technical committee 29: Electroacoustics, in cooperation with the International Organization of Legal Metrology (OIML).
This second edition cancels and replaces the first edition published in 2006. This second edition constitutes a technical revision.
The main technical changes with regard to the previous edition are as follows: In this second edition, conformance to specifications is demonstrated when:
a) measured deviations from design goals do not exceed the applicable acceptance limits, and
b) the uncertainty of measurement does not exceed the corresponding maximum-permitted uncertainty, with both uncertainties determined for a coverage probability of 95 %. SIST EN 61672-3:2014

– 4 – 61672-3
IEC:2013 The text of this second edition is based on that of the first edition and the following documents: FDIS Report on voting 29/814/FDIS 29/825/RVD
Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all parts in the IEC 61672 series, published under the general title Electroacoustics – Sound level meters, can be found on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data related to the specific publication. At this date, the publication will be
• reconfirmed, • withdrawn, • replaced by a revised edition, or • amended. A list of all parts of the IEC 61672
...