EN 61260-3:2016

SLOVENSKI STANDARD
01-september-2016
1DGRPHãþD
SIST EN 61260:1998
SIST EN 61260:1998/A1:2006
Elektroakustika - Oktavni in frakcijski oktavni filtri - 3. del: Redno preskušanje (IEC
61260-3:2016)
Electroacoustics - Octave-band and fractional-octave-band filters - Part 3: Periodic tests
(IEC 61260-3:2016)
Electroacoustique - Filtres de bande d'octave et de bande d'une fraction d'octave - Partie
3: Essais périodiques
Ta slovenski standard je istoveten z: EN 61260-3:2016
ICS:
17.140.50 Elektroakustika Electroacoustics
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 61260-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2016
ICS 17.140.50 Supersedes EN 61260:1995 (partially)
English Version
Electroacoustics - Octave-band and fractional-octave-band filters
- Part 3: Periodic tests
(IEC 61260-3:2016)
Electroacoustique - Filtres de bande d'octave et de bande Elektroakustik - Bandfilter für Oktaven und Bruchteile von
d'une fraction d'octave - Partie 3: Essais périodiques Oktaven - Teil 3: Periodische Einzelprüfung
(IEC 61260-3:2016) (IEC 61260-3:2016)
This European Standard was approved by CENELEC on 2016-04-27. 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.

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
© 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 61260-3:2016 E
European foreword
The text of document 29/846/CDV, future edition 1 of IEC 61260-3, prepared by IEC TC 29,
Electroacoustics, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as
The following dates are fixed:
(dop) 2017-01-27
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2019-04-27
standards conflicting with the
document have to be withdrawn
This document supersedes EN 61260:1995.

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 61260-3:2016 was approved by CENELEC as a European
Standard without any modification.
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 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD

applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 61260-1 2014 Electroacoustics - Octave-band and EN 61260-1 2014
fractional-octave-band filters -- Part 1:
Specifications
IEC 61260-2 2016 Electroacoustics - Octave-band and EN 61260-2 2016
fractional-octave-band filters - Part 2:
Pattern-evaluation tests
IEC 61672-1 -  Electroacoustics - Sound level meters -- Part EN 61672-1 -
1: Specifications
ISO/IEC Guide 98-3 -  Uncertainty of measurement - Part 3: Guide - -
to the expression of uncertainty in
measurement (GUM:1995)
ISO/IEC Guide 98-4 -  Uncertainty of measurement -- Part 4: Role - -
of measurement uncertainty in conformity
assessment
IEC 61260-3 ®
Edition 1.0 2016-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electroacoustics – Octave-band and fractional-octave-band filters –

Part 3: Periodic tests
Électroacoustique – Filtres de bande d'octave et de bande d'une fraction

d'octave –
Partie 3: Essais périodiques
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.140.50 ISBN 978-2-8322-3246-0

– 2 – IEC 61260-3:2016 © IEC 2016
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references. 6
3 Terms and definitions . 7
4 Submission for testing . 7
5 Conformance . 7
6 Preliminary inspection . 8
7 Power supply . 8
8 Environmental conditions . 8
9 Mandatory facilities and general requirements . 8
9.1 General . 8
9.2 Test instruments . 10
10 Test of relative attenuation at midband frequency or effective bandwidth deviation . 10
10.1 General . 10
10.2 Tests of relative attenuation at midband frequency . 10
10.3 Test of effective bandwidth deviation . 10
11 Linear operating range, measurement range, level range control and overload
indicator . 11
12 Test of lower limit of linear operating range . 12
13 Measurement of relative attenuation . 12
14 Documentation . 13
Annex A (informative) Uncertainty related to test by sinusoidal sweeps . 16
A.1 General . 16
A.2 Digitally generated signal . 16
A.3 Test signal from a signal generator . 17
A.4 Comparing measurements . 18
Annex B (informative) Test of effective bandwidth deviation with the use of an
exponential sweep – Example . 19
B.1 General . 19
B.2 Example. 19
Annex C (informative) Normalized frequencies for test of one-third-octave-band filters . 21
C.1 General . 21
C.2 Example calculation . 21
Bibliography . 23

Table 1 – Frequency parameter R and acceptance limits on relative attenuation for
fractional-octave-band filters . 13
Table C.1 – Normalized test frequencies and acceptance limits on relative attenuation
for one-third-octave-band filters . 22

IEC 61260-3:2016 © IEC 2016 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTROACOUSTICS – OCTAVE-BAND
AND FRACTIONAL-OCTAVE-BAND FILTERS –

Part 3: Periodic tests
FOREWORD
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patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61260-3 has been prepared by IEC technical committee 29:
Electroacoustics.
This first edition of IEC 61260-3 (together with IEC 61260-1:2014 and IEC 61260-2:2016),
cancels and repla
...