1、 ANSI/ASA S1.11-2016/Part 3 / IEC 61260-3:2016 AMERICAN NATIONAL STANDARD Electroacoustics Octave-band and Fractional-octave-band Filters Part 3: Periodic Tests (a nationally adopted international standard) Accredited Standards Committee S1, Acoustics Standards Secretariat Acoustical Society of Amer
2、ica 1305 Walt Whitman Road, Suite 300 Melville, NY 11747 ANSI/ASAS1.11-2016/Part3/IEC61260-3:2016 The American National Standards Institute, Inc. (ANSI) is the national coordinator of voluntary standards development and the clearinghouse in the U.S.A. for information on national and international st
3、andards. The Acoustical Society of America (ASA) is an organization of scientists and engineers formed in 1929 to increase and diffuse the knowledge of acoustics and to promote its practical applications. ANSI/ASA S1.11-2016/Part 3 / IEC 61260-3:2016 AMERICAN NATIONAL STANDARD Electroacoustics Octav
4、e-band and fractional-octave-band Filters Part 3: Periodic Tests Secretariat: Acoustical Society of America Approved on July 19, 2016 by: American National Standards Institute, Inc. Abstract This part describes procedures for periodic testing of octave-band and fractional-octave-band filters that we
5、re designed to conform to the class 1 or class 2 specifications given in ANSI/ASA S1.11-2014/Part 1/IEC 61260-1:2014. The aim of this standard is to ensure that periodic testing is performed in a consistent manner by all laboratories. AMERICAN NATIONAL STANDARDS ON ACOUSTICS The Acoustical Society o
6、f America (ASA) provides the Secretariat for Accredited Standards Committees S1 on Acoustics, S2 on Mechanical Vibration and Shock, S3 on Bioacoustics, S3/SC 1 on Animal Bioacoustics, and S12 on Noise. These committees have wide representation from the technical community (manufacturers, consumers,
7、trade associations, organizations with a general interest, and government representatives). The standards are published by the Acoustical Society of America as American National Standards after approval by their respective Standards Committees and the American National Standards Institute (ANSI). Th
8、ese standards are developed and published as a public service to provide standards useful to the public, industry, and consumers, and to Federal, State, and local governments. Each of the Accredited Standards Committees (operating in accordance with procedures approved by ANSI) is responsible for de
9、veloping, voting upon, and maintaining or revising its own standards. The ASA Standards Secretariat administers Committee organization and activity and provides liaison between the Accredited Standards Committees and ANSI. After the standards have been produced and adopted by the Accredited Standard
10、s Committees, and approved as American National Standards by ANSI, the ASA Standards Secretariat arranges for their publication and distribution. An American National Standard implies a consensus of those substantially concerned with its scope and provisions. Consensus is established when, in the ju
11、dgment of the ANSI Board of Standards Review, substantial agreement has been reached by directly and materially affected interests. Substantial agreement means much more than a simple majority, but not necessarily unanimity. Consensus requires that all views and objections be considered and that a c
12、oncerted effort be made towards their resolution. The use of an American National Standard is completely voluntary. Their existence does not in any respect preclude anyone, whether he or she has approved the standards or not, from manufacturing, marketing, purchasing, or using products, processes, o
13、r procedures not conforming to the Standards. NOTICE: This American National Standard may be revised or withdrawn at any time. The procedures of the American National Standards Institute require that action be taken periodically to reaffirm, revise, or withdraw this Standard. Acoustical Society of A
14、merica Standards Secretariat 1305 Walt Whitman Road, Suite 300 Melville, New York 11747 Telephone: 1 (631) 390-0215 Fax: 1 (631) 923-2875 E-mail: asastdsacousticalsociety.org 2016 by Acoustical Society of America. This standard may not be reproduced in whole or in part in any form for sale, promotio
15、n, or any commercial purpose, or any purpose not falling within the provisions of the U.S. Copyright Act of 1976, without prior written permission of the publisher. For permission, address a request to the Standards Secretariat of the Acoustical Society of America. These materials are subject to cop
16、yright claims of IEC and ASA. No part of this publication may be reproduced in any form, including an electronic retrieval system, without the prior written permission of the Acoustical Society of America (ASA). All requests pertaining to this standard should be submitted to the ASA Standards Secret
17、ariat. 2016 Acoustical Society of AmericaAll rights reserved i Contents 1 Scope 1 2 Normative references . 1 3 Terms and definitions . 2 4 Submission for testing 2 5 Conformance 2 6 Preliminary inspection 3 7 Power supply 3 8 Environmental conditions 3 9 Mandatory facilities and general requirements
18、 . 3 9.1 General . 3 9.2 Test instruments . 5 10 Test of relative attenuation at midband frequency or effective bandwidth deviation 5 10.1 General . 5 10.2 Tests of relative attenuation at midband frequency . 5 10.3 Test of effective bandwidth deviation . 5 11 Linear operating range, measurement ran
19、ge, level range control and overload indicator 6 12 Test of lower limit of linear operating range . 7 13 Measurement of relative attenuation . 7 14 Documentation 9 Annex A (informative) Uncertainty related to test by sinusoidal sweeps . 11 General . 11 Digitally generated signal . 12 Test signal fro
20、m a signal generator 12 Comparing measurements . 13 Annex B (informative) Test of effective bandwidth deviation with the use of an exponential sweep Example 14 General . 14 Example 14 Annex C (informative) Normalized frequencies for test of one-third-octave-band filters . 16 General . 16 Example cal
21、culation 16 Bibliography . 18 Tables Table 1 Frequency parameter R and acceptance limits on relative attenuation for fractional-octave-band filters 8 Table C.1 Normalized test frequencies and acceptance limits on relative attenuation for one-third-octave-band filters 17 ii 2016 Acoustical Society of
22、 AmericaAll rights reserved Foreword This Foreword is for information only, and is not a part of the American National Standard ANSI/ASA S1.11-2016/Part 3/IEC 61260-3:2016 American National Standard Electroacoustics Octave-band and Fractional-octave-band Filters Part 3: Periodic Tests. As such, this
23、 Foreword may contain material that has not been subjected to public review or a consensus process. In addition, it does not contain requirements necessary for conformance to the standard. This standard comprises a part of a group of definitions, standards, and specifications for use in acoustics. I
24、t was developed and approved by Accredited Standards Committee S1 Acoustics, under its approved operating procedures. Those procedures have been accredited by the American National Standards Institute (ANSI). The Scope of Accredited Standards Committee S1 is as follows: Standards, specifications, me
25、thods of measurement and test, and terminology in the field of physical acoustics, including architectural acoustics, electroacoustics, sonics and ultrasonics, and underwater sound, but excluding those aspects which pertain to biological safety, tolerances, and comfort. This standard supplements ANS
26、I/ASA S1.11-2014/Part 1/IEC 61260-1:2014 American National Standard Electroacoustics Octave-band and Fractional-octave-band Filters Part 1: Specifications. This standard is an identical national adoption of IEC 61260-3:2016 Electroacoustics Octave-band and fractional-octave-band filters Part 3: Peri
27、odic tests, which was prepared by IEC/TC 29. However, in conformance with ANSI and IEC rules, the words “this part of ANSI/ASA S1.11/IEC 61260” replace the words “this part of IEC 61260” where they appear in the IEC document, decimal points were substituted in place of the decimal commas used in IEC
28、 documents, and American English spelling is used in place of British English spelling. The ANSI/ASA equivalents to ISO/IEC standards referenced herein are given below: ANSI/ASA S1.4-2014/Part 1/IEC 61672-1:2013 American National Standard Electroacoustics Sound Level Meters Part 1: Specifications (a
29、 nationally adopted international standard) ANSI/ASA S1.11-2014/Part 1/IEC 61260-1:2014 American National Standard Electroacoustics - Octave-band and Fractional-octave-band Filters Part 1: Specifications (a nationally adopted international standard) ANSI/ASA S1.11-2016/Part 2/IEC 61260-2:2016 Americ
30、an National Standard Electroacoustics - Octave-band and Fractional-octave-band Filters Part 2: Pattern-evaluation Tests (a nationally adopted international standard) At the time this Standard was submitted to Accredited Standards Committee S1, Acoustics for approval, the membership was as follows: R
31、.J. Peppin, Chair A.A. Scharine, Vice-Chair N. Stremmel, Secretary 3M Personal Safety Division, Detection Solutions . P.J. Battenberg M. Wurm (Alt.) Acoustical Society of America . R.J. Peppin . R.D. Hellweg (Alt.) Air-Conditioning, Heating and Refrigeration Institute S.J. Lind D. Abbate (Alt.) 2016
32、 Acoustical Society of AmericaAll rights reserved iii American Industrial Hygiene Association D. Driscoll D. Sandfort (Alt.) Campanella Associates A.J. Campanella Casella USA R. Brauch ETS-Lindgren Acoustic Systems D. Winker M. Black (Alt.) G.R.A.S. Sound FAX: 631-923-2875; E-mail: asastdsacoustical
33、society.org. iv 2016 Acoustical Society of AmericaAll rights reserved INTRODUCTION IEC 61260:1995 and IEC 61260:1995/AMD 1:2001 are now separated into the following three parts of IEC 61260 series: Part 1: Specifications Part 2: Pattern evaluation tests Part 3: Periodic tests For assessments of conf
34、ormance to performance specifications, ANSI/ASA S1.11/Part 1/IEC 61260-1 uses different criteria than were used for the IEC 61260:1995 edition. IEC 61260:1995 did not provide any requirements or recommendations to account for the uncertainty of measurement in assessments of conformance to specificat
35、ions. This absence of requirements or recommendations to account for uncertainty of measurement created ambiguity in determinations of conformance to specifications for situations where a measured deviation from a design goal was close to the limit of the allowed deviation. If conformance was determ
36、ined based on whether a measured deviation did or did not exceed the limits, the end-user of the octave-band and fractional-octave-band filters incurred the risk that the true deviation from a design goal exceeded the limits. To remove this ambiguity, IEC Technical Committee 29, at its meeting in 19
37、96, adopted a policy to account for measurement uncertainty in assessments of conformance in International Standards that it prepares. This edition of ANSI/ASA S1.11/Part 3/IEC 61260-3 uses an amended criterion for assessing conformance to a specification. Conformance is demonstrated when (a) measur
38、ed 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. Acceptance limits are analogous to the tolerance limits allowances for design and manufacturing implied in the IEC 61
39、260:1995. Actual and maximum-permitted uncertainties of measurement are determined for a coverage probability of 95 %. Unless more specific information is available, the evaluation of the contribution of a specific filter or filter set to a total measurement uncertainty can be based on the acceptanc
40、e limits and maximum-permitted uncertainties specified in this standard. AMERICAN NATIONAL STANDARD ANSI/ASA S1.11-2016/Part 3/IEC 61260-3:2016 2016 Acoustical Society of AmericaAll rights reserved 1 American National Standard Electroacoustics Octave-band and Fractional-octave-band Filters Part 3: P
41、eriodic Tests 1 Scope 1.1 This part of ANSI/ASA S1.11/IEC 61260 describes procedures for periodic testing of octave-band and fractional-octave-band filters that were designed to conform to the class 1 or class 2 specifications given in IEC 61260-1:2014. The aim of this standard is to ensure that per
42、iodic testing is performed in a consistent manner by all laboratories. 1.2 The purpose of periodic testing is to assure the user that the performance of an octave-band and fractional-octave-band filter conforms to the applicable specifications of IEC 61260-1 for a limited set of key tests and for th
43、e environmental conditions under which the tests were performed. 1.3 The extent of the tests in this standard is deliberately restricted to the minimum considered necessary for periodic tests. 1.4 Periodic tests described in this standard apply to filters for which the manufacturer claims conformanc
44、e to the specifications in IEC 61260-1:2014. Periodic tests in this standard apply to filters for which the model has been, or has not been, pattern approved by an independent testing organization responsible for pattern approvals in accordance with the test procedures of IEC 61260-2. 1.5 Because of
45、 the limited extent of the periodic tests, if evidence of pattern approval is not publicly available, no general conclusion about conformance to the specifications of IEC 61260-1 can be made, even if the results of the periodic tests conform to all applicable requirements of this standard. 2 Normati
46、ve references 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) ap
47、plies. IEC 61260-1:2014, Electroacoustics Octave-band and fractional-octave-band filters Part 1: Specifications IEC 61260-2:2016, Electroacoustics Octave-band and fractional-octave-band filters Part 2: Pattern-evaluation tests IEC 61672-1, Electroacoustics Sound level meters Part 1: Specifications I
48、SO/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 ANSI/ASA S1.11-2016/Part 3 / IEC 61260-3:2016 2 2016 Acoustical Socie
49、ty of AmericaAll rights reserved 3 Terms and definitions For the purposes of this document, the terms and definitions given in IEC 61260-1, ISO/IEC Guide 98-3 and ISO/IEC Guide 98-4 apply. 4 Submission for testing 4.1 An instruction manual applicable to the model and version of the filter shall be available in order to perform periodic tests of a filter. If an applicable instruction manual is not submitted along with the filter, nor available at the calibration laboratory, nor publicly accessible from
