1、BSI Standards PublicationElectroacoustics Octave-band and fractional-octave-band filtersPart 1: SpecificationsBS EN 61260-1:2014BS EN 61260-1:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 61260-1:2014. It is identical to IEC 61260-1:2014. Together with BS
2、 EN 61260-2 and BS EN 61260-3 it supersedes BS EN 61260:1996, which will be withdrawn upon publication of the rest of the series.The UK participation in its preparation was entrusted to Technical Committee EPL/29, Electroacoustics.A list of organizations represented on this committee can be obtained
3、 on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2014. Published by BSI Standards Limited 2014ISBN 978 0 580 61956 4ICS 17.140.50Compliance with a
4、 British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 August 2014.Amendments/corrigenda issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM E
5、N 61260-1 June 2014 ICS 17.140.50 Supersedes EN 61260:1995 English Version Electroacoustics - Octave-band and fractional-octave-band filters - Part 1: Specifications (IEC 61260-1:2014) Electroacoustique - Filtres de bande doctave et de bande dune fraction doctave - Partie 1: Spcifications (CEI 61260
6、-1:2014) Elektroakustik - Bandfilter fr Oktaven und Bruchteile von Oktaven - Teil 1: Anforderungen (IEC 61260-1:2014) This European Standard was approved by CENELEC on 2014-03-21. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving
7、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 off
8、icial 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 electrotec
9、hnical 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,
10、 Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 20
11、14 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 61260-1:2014 E BS EN 61260-1:2014EN 61260-1:2014 - 2 - Foreword The text of document 29/835/FDIS, future edition 1 of IEC 61260-1, prepared by IEC/TC 29 “Electroacoustics“ was submi
12、tted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 61260-1:2014. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2014-12-21 latest date by which the nati
13、onal standards conflicting with the document have to be withdrawn (dow) 2017-03-21 This document supersedes EN 61260:1995. EN 61260-1:2014 includes the following significant technical changes with respect to EN 61260:1995: a) the single document in the first edition of EN 61260:1995 is in EN 61260 s
14、eries separated into the three parts covering: specifications, pattern evaluation tests and periodic tests; b) the EN 61260:1995 specified three performance categories: classes 0, 1 and 2. The EN 61260 series specifies requirements for class 1 and 2; c) in the EN 61260:1995, the design goals for the
15、 specification can be based on base-2 or base 10 design. In EN 61260 series only base-10 is specified; d) the reference environmental conditions have been changed from 20 C / 65 % RH to 23 C / 50 % RH; e) EN 61260:1995 specified tolerance limits without considering the uncertainty of measurement for
16、 verification of the specifications. EN 61260 series specifies acceptance limits for the observed values and maximum-permitted uncertainty of measurements for laboratories testing conformance to specifications in the standard. Attention is drawn to the possibility that some of the elements of this d
17、ocument 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 61260-1:2014 was approved by CENELEC as a European Standard without any modification. In the offi
18、cial version, for Bibliography, the following notes have to be added for the standards indicated: CISPR 16-1-1:2010 NOTE Harmonised as EN 55016-1-1:2010. BS EN 61260-1:2014EN 61260-1:2014 - 2 - Foreword The text of document 29/835/FDIS, future edition 1 of IEC 61260-1, prepared by IEC/TC 29 “Electro
19、acoustics“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 61260-1:2014. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2014-12-21 latest da
20、te by which the national standards conflicting with the document have to be withdrawn (dow) 2017-03-21 This document supersedes EN 61260:1995. EN 61260-1:2014 includes the following significant technical changes with respect to EN 61260:1995: a) the single document in the first edition of EN 61260:1
21、995 is in EN 61260 series separated into the three parts covering: specifications, pattern evaluation tests and periodic tests; b) the EN 61260:1995 specified three performance categories: classes 0, 1 and 2. The EN 61260 series specifies requirements for class 1 and 2; c) in the EN 61260:1995, the
22、design goals for the specification can be based on base-2 or base 10 design. In EN 61260 series only base-10 is specified; d) the reference environmental conditions have been changed from 20 C / 65 % RH to 23 C / 50 % RH; e) EN 61260:1995 specified tolerance limits without considering the uncertaint
23、y of measurement for verification of the specifications. EN 61260 series specifies acceptance limits for the observed values and maximum-permitted uncertainty of measurements for laboratories testing conformance to specifications in the standard. Attention is drawn to the possibility that some of th
24、e 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 61260-1:2014 was approved by CENELEC as a European Standard without any modif
25、ication. In the official version, for Bibliography, the following notes have to be added for the standards indicated: CISPR 16-1-1:2010 NOTE Harmonised as EN 55016-1-1:2010. BS EN 61260-1:2014- 3 - EN 61260-1:2014 Annex ZA (normative) Normative references to international publications with their cor
26、responding 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
27、 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 Publicat
28、ion Year Title EN/HD Year IEC 61000-4-2 - Electromagnetic compatibility (EMC) - Part 4-2: Testing and measurement techniques - Electrostatic discharge immunity test EN 61000-4-2 - IEC 61000-4-3 2006 Electromagnetic compatibility (EMC) - Part 4-3: Testing and measurement techniques - Radiated, radio-
29、frequency, electromagnetic field immunity test EN 61000-4-3 2006 IEC 61000-6-1 2005 Electromagnetic compatibility (EMC) - Part 6-1: Generic standards - Immunity for residential, commercial and light-industrial environments EN 61000-6-1 2007 IEC 61000-6-2 2005 Electromagnetic compatibility (EMC) - Pa
30、rt 6-2: Generic standards - Immunity for industrial environments EN 61000-6-2 2005 + 2005 IEC 61000-6-3 2006 Electromagnetic compatibility (EMC) - Part 6-3: Generic standards - Emission standard for residential, commercial and light-industrial environments EN 61000-6-3 2007 IEC 61672-1 - Electroacou
31、stics - Sound level meters - Part 1: Specifications EN 61672-1 - 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 2012 Uncertainty of measurement - Part 4: Role of measurement uncertainty in conformity a
32、ssessment - - CISPR 22 (mod) 2008 Information technology equipment - Radio disturbance characteristics - Limits and methods of measurement EN 55022 2010 +AC 2011 BS EN 61260-1:2014 2 61260-1 IEC:2014 CONTENTS INTRODUCTION . 6 1 Scope 7 2 Normative references. 7 3 Terms and definitions 8 4 Reference
33、environmental conditions . 12 5 Performance requirements . 12 5.1 General 12 5.2 Octave frequency ratio . 13 5.3 Reference frequency 13 5.4 Exact mid-band frequencies . 13 5.5 Nominal mid-band frequencies 13 5.6 Band-edge frequencies . 14 5.7 Time-averaged signal levels . 14 5.8 Filter attenuation 1
34、4 5.9 Reference attenuation 15 5.10 Relative attenuation . 15 5.11 Normalized effective bandwidth 18 5.12 Effective bandwidth deviation . 19 5.13 Linear operating range . 19 5.14 Time-invariant operation . 20 5.15 Anti-alias filters 20 5.16 Summation of output signals . 21 5.17 Overload indicator 21
35、 5.18 Filter decay time. 21 5.19 Maximum input signal . 21 5.20 Output terminals and terminating impedances . 22 5.21 Power supply check . 22 5.22 Sensitivity to various environments . 22 General . 22 5.22.1Ambient air temperature and relative humidity 22 5.22.25.23 Electrostatic-discharge and elect
36、romagnetic-compatibility requirements 22 General . 22 5.23.1Electrostatic discharges . 23 5.23.2Immunity to power-frequency and radio-frequency fields 23 5.23.3Emission limits 25 5.23.46 Instrument marking 25 7 Instruction manual . 26 7.1 General 26 7.2 Operation . 26 7.3 Testing . 27 Annex A (infor
37、mative) Relationship between tolerance interval, corresponding acceptance interval and the maximum-permitted uncertainty of measurement 28 Annex B (normative) Maximum-permitted expanded uncertainties of measurement . 29 Annex C (informative) Examples of conformance assessment to specifications of th
38、is standard . 30 BS EN 61260-1:2014 2 61260-1 IEC:2014 CONTENTS INTRODUCTION . 6 1 Scope 7 2 Normative references. 7 3 Terms and definitions 8 4 Reference environmental conditions . 12 5 Performance requirements . 12 5.1 General 12 5.2 Octave frequency ratio . 13 5.3 Reference frequency 13 5.4 Exact
39、 mid-band frequencies . 13 5.5 Nominal mid-band frequencies 13 5.6 Band-edge frequencies . 14 5.7 Time-averaged signal levels . 14 5.8 Filter attenuation 14 5.9 Reference attenuation 15 5.10 Relative attenuation . 15 5.11 Normalized effective bandwidth 18 5.12 Effective bandwidth deviation . 19 5.13
40、 Linear operating range . 19 5.14 Time-invariant operation . 20 5.15 Anti-alias filters 20 5.16 Summation of output signals . 21 5.17 Overload indicator 21 5.18 Filter decay time. 21 5.19 Maximum input signal . 21 5.20 Output terminals and terminating impedances . 22 5.21 Power supply check . 22 5.2
41、2 Sensitivity to various environments . 22 General . 22 5.22.1Ambient air temperature and relative humidity 22 5.22.25.23 Electrostatic-discharge and electromagnetic-compatibility requirements 22 General . 22 5.23.1Electrostatic discharges . 23 5.23.2Immunity to power-frequency and radio-frequency f
42、ields 23 5.23.3Emission limits 25 5.23.46 Instrument marking 25 7 Instruction manual . 26 7.1 General 26 7.2 Operation . 26 7.3 Testing . 27 Annex A (informative) Relationship between tolerance interval, corresponding acceptance interval and the maximum-permitted uncertainty of measurement 28 Annex
43、B (normative) Maximum-permitted expanded uncertainties of measurement . 29 Annex C (informative) Examples of conformance assessment to specifications of this standard . 30 BS EN 61260-1:201461260-1 IEC:2014 3 C.1 General 30 C.2 Conformance criteria 30 C.3 Example test results . 31 Annex D (informati
44、ve) Base 2 filters . 33 Annex E (normative) Nominal mid-band frequencies . 34 E.1 Mid-band frequencies for octave-band and one-third-octave-band filters 34 E.2 Mid-band frequencies for one-half-octave-band filters . 34 E.3 Mid-band frequencies for other bandwidths . 34 Annex F (informative) Normaliz
45、ed frequencies at breakpoints of acceptance limits on minimum and maximum relative attenuation for one-third-octave-band filters 36 Annex G (informative) Filter response to exponentially swept sinusoidal signals 38 G.1 Exponential frequency sweep . 38 G.2 Response of set of band-pass filters to a sw
46、eep 38 Annex H (informative) Measurement of filter decay time 41 H.1 General 41 H.2 Measurement of filter decay time 41 H.2.1 Instruments with the capability to measure reverberation time 41 H.2.2 Instruments without the capability to measure reverberation time 41 Bibliography . 43 Figure 1 Minimum
47、and maximum limits on relative attenuation as a function of f/fmfor class 1 and class 2 octave-band filters . 17 Figure A.1 Relationship between tolerance interval, corresponding acceptance interval and the maximum-permitted uncertainty of measurement . 28 Figure C.1 Examples of conformance assessme
48、nt 32 Figure G.1 Relation between the logarithmic frequency scale and the linear time scale due to the exponential sweep . 40 Table 1 Acceptance limits on relative attenuation for octave-band filters . 15 Table 2 Limits for radiated disturbance of class B Information Technology Equipment (ITE) at a
49、distance of 10 m 25 Table 3 Limits for conducted disturbance to the voltage of a public supply of electric power . 25 Table B.1 Maximum-permitted expanded uncertainties of measurement 29 Table C.1 Examples of conformance assessment . 31 Table E.1 Mid-band frequencies for octave-band and one-third-octave-band filters in the audio range 35 Table F.1 Acceptance limits on relative attenuation for one-third-octave-band filters 37 BS EN 61260-1:2014 6 61260-1 IEC:2014 INTRODUCTION IEC 61260:1995 and its Amen
