BS-EN-60268-7-1996 BS-6840-7-1996 IEC-60268-7-1996.pdf
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1、BRITISH STANDARD BS EN 60268-7:1996 BS 6840-7: 1996 IEC 268-7: 1996 Sound system equipment Part 7: Headphones and earphones The European Standard EN 60268-7:1996 has the status of a British Standard ICS 33.160.50 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 09:38:33 GMT+00:00 2006, Uncontr
2、olled Copy, (c) BSI BS EN 60268-7:1996 This British Standard, having been prepared under the direction of the Electrotechnical Sector Board, was published under the authority of the Standards Board and comes into effect on 15 September 1996 BSI 11-1998 The following BSI references relate to the work
3、 on this standard: Committee reference EPL/100/3 Draft for comment 93/200714 DC ISBN 0 580 26320 7 Committees responsible for this British Standard The preparation of this British Standard was entrusted by Technical Committee EPL/100, Audio, video and multimedia systems and equipment, to Subcommitte
4、e EPL/100/3, Equipment and systems in the field of audio, video and audiovisual engineering, upon which the following bodies were represented: Association of British Theatre Technicians Audio Engineering Society British Broadcasting Corporation British Educational Suppliers Association British Feder
5、ation of Audio British Radio and Electronic Equipment Manufacturers Association British Telecommunications plc Federation of the Electronics Industry Independant Television Association (ITVA) Institute of Sound and Communication Engineers Institution of Electrical Engineers International Association
6、 of Broadcasting Manufacturers Professional Lighting and Sound Association Royal Institute of British Architects Royal National Institute for Deaf People Society of Cable Television Engineers Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Sat Nov
7、 11 09:38:33 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 60268-7:1996 BSI 11-1998i Contents Page Committees responsibleInside front cover National forewordii Foreword2 Text of EN 60268-73 List of referencesInside back cover Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 09:38:33 GMT+00:
8、00 2006, Uncontrolled Copy, (c) BSI BS EN 60268-7:1996 ii BSI 11-1998 National foreword This British Standard has been prepared by Subcommittee EPL/100/3 and is the English language version of EN 60268-7:1996 Sound system equipment Part 7: Headphones and earphones, published by the Committee for Ele
9、ctrotechnical Standardization (CENELEC). It is identical to IEC 268-7:1996, published by the International Electrotechnical Commission (IEC). The additional designation of this standard as BS 6840-7 has been retained for ease of reference in relation to other Parts of BS 6840 (IEC 268 series). BS 68
10、40 consists of the following Parts: Part 1: Methods for specifying and measuring general characteristics used for equipment performance; Part 2: Glossary of general terms and calculation methods; Part 3: Methods for specifying and measuring the characteristics of sound system amplifiers; Part 4: Met
11、hods for specifying and measuring the characteristics of microphones; Part 5: Methods for specifying and measuring the characteristics of loudspeakers; Part 6: Methods for specifying and measuring the characteristics of auxiliary passive elements; Part 7: Headphones and earphones; (BS EN 60268-7) Pa
12、rt 8: Methods for specifying and measuring the characteristics of automatic gain control devices; Part 9: Methods for specifying and measuring the characteristics of artificial reverberation, time delay and frequency shift equipment; Part 10: Methods for specifying and measuring the characteristics
13、of peak programme level meters; Part 11: Specification for application of connectors for the interconnection of sound system components; Part 12: Specification for applications of connectors for broadcast and similar use; (BS EN 60268-12) Part 13: Guide for listening tests on loudspeakers; Part 14:
14、Guide for circular and elliptical loudspeakers; outer frame diameters and mounting dimensions; Part 15: Specification for matching values for the interconnection of sound system components; Part 16: Guide to the “RASTI” method for the objective rating of speech intelligibility in auditoria; Part 17:
15、 Methods for specifying and measuring their characteristics of standard volume indicators; Part 18: Peak programme level meters: Guide for digital audio peak level meter. Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 09:38:33 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 60268-7:1996 BSI
16、 11-1998iii Cross-references Publication referred toCorresponding British Standard EN 23741:1991BS 4196 Sound power levels of noise sources (ISO 3741:1988)Part 1:1991 Precision methods for determination of sound power levels for broad-band sources in reverberation rooms BS EN 24869 Acoustics. Hearin
17、g protectors EN 24869-1:1992BS EN 24689-1:1993 Sound attenuation of hearing (ISO 4869-1:1990)protectors. Subjective method of measurement EN 24869-3:19931) BS EN 24869-3:1994 Simplified method for (ISO/TR 4869-3:1989)measurement of insertion loss of ear-muff type protectors for quality inspection pu
18、rposes HD 472 S1:1989BS 7697:1993 Nominal voltages for low voltage public electricity supply systems IEC 50(801):1994BS 4727 Glossary of electrotechnical, power, telecommunication, electronics, lighting and colour terms. Part 3 Terms particular to telecommunications and electronics Group 08:1995 Aco
19、ustics and electroacoustics EN 60068 seriesBS EN 60068 Environmental testing EN 60086 seriesBS EN 60086 Primary batteries HD 323 seriesBS 2011 Environmental testing (IEC 68 series) HD 211.2 S9:1993BS 397 Primary batteries (IEC 86 series) IEC 263:1982BS 6397:1983 Specification for scales and sizes fo
20、r plotting frequency charateristics and polar diagrams HD 483BS 6840 Sound system equipment HD 483.1 S2:1989Part 1:1987 Methods for specifying and measuring (IEC 268-1:1985)general characteristics used for equipment performance HD 483.2 S2:1993Part 2:1993 Glossary of general terms and (IEC 268-2:198
21、7)calculation methods HD 483.3 S2:1992Part 3:1992 Methods for specifying and measuring (IEC 268-3:1988)the characteristics of sound system amplifiers HD 483.11 S3:1993Part 11:1994 Specification for application of (IEC 268-11:1987)connectors for the interconnection of sound system components HD 483.1
22、5 S4:1992Part 15:1992 Specification for matching values for (IEC 268-15:1987)the interconnection of sound system components EN 60268-12:1987BS EN 60268 Sound system equipment BS EN 60268-12:1995 Application of connectors for broadcast and similar use HD 443 S1:1983BS 6310:1982 Specification for occl
23、uded-ear (IEC 711:1981)simulator for the measurement of earphones coupled to the ear by ear inserts HD 549 S1:1989BS 7154:1989 Specification for conference systems: (IEC 914:1988)electrical and audio requirements 1) Now published by CEN. Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 09:38:3
24、3 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 60268-7:1996 iv BSI 11-1998 A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself co
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