1、BRITISH STANDARD BS EN 60094-1:1994 BS 6288-1: 1994 IEC 94-1:1981 Incorporating Amendment No. 1 Magnetic tape sound recording and reproducing systems Part 1: Specification for general conditions and requirements The European Standard EN 60094-1:1993 has the status of a British Standard UDC 621.395.6
2、25.3-418-181.1-777.001.2.004.12 (083.71) 681.84.083.8BSEN 60094-1:1994 This British Standard, having been prepared under the directionof the Electronic Equipment Standards Policy Committee, was published underthe authority of the Standards Board and comes into effect on 15February1994 BSI 11-1999 Fi
3、rst published November1982 Second edition February1994 The following BSI references relate to the work on this standard: Committee reference EEL/22 Draft for comment 77/27398 DC ISBN 0 580 22902 5 Cooperating organizations The European Committee for Electrotechnical Standardization (CENELEC), under
4、whose supervision this European Standard was prepared, comprises the national committees of the following countries: Austria Italy Belgium Luxembourg Denmark Netherlands Finland Norway France Portugal Germany Spain Greece Sweden Iceland Switzerland Ireland United Kingdom Amendments issued since publ
5、ication Amd. No. Date Comments 8915 November 1995 Indicated by a sideline in the marginBSEN 60094-1:1994 BSI 11-1999 i Contents Page Cooperating organizations Inside front cover National foreword ii Foreword 2 Text of EN 60094-1 5 National annex NA (informative) Committees responsible Inside back co
6、ver National annex NB (informative) Cross-references Inside back coverBSEN 60094-1:1994 ii BSI 11-1999 National foreword This British Standard has been prepared by Technical Committee EPL/60 and is the English language version of EN 60094-1:1993, Magnetic tape sound recording and reproducing systems
7、. Part 1: General conditions and requirements, together with its amendment A1: August1994, published by the European Committee for Electrotechnical Standardization (CENELEC), which supersedes Harmonization Document HD 311.1 S2:1991. It is identical with IEC 94-1:1981 and its Amendment 1: July1994, p
8、ublished by the International Electrotechnical Commission (IEC). The cross-reference of this standard as Part1 of the BS6288 series has been retained for ease of reference to other Parts of the series. This British Standard supersedes BS6288-1:1982 which is withdrawn. BS6288 consists currently of th
9、e following Parts: This British Standard does not reflect a revision of the text which will be undertaken in due course. Additional information. The note to 17.1.2 contains a requirement and should therefore be regarded as being part of the main text. ISO/R 1661:1971 referred to in the text in claus
10、e4 has been withdrawn. 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 confer immunity from legal obligations. Part 1 (BS EN 6009
11、4-1) Specification for general conditions and requirements Part 2 (BS EN 60094-2) Specification for calibration tapes Part 3 Methods of measuring the characteristics of recording and reproducing equipment for sound on magnetic tape Part 4 Methods for measuring the mechanical characteristics of magne
12、tic tape for analogue recording Part 5 (BS EN 60094-5) Specification for electrical magnetic tape properties Part 6 Specification for reel-to-reel systems Part 7 (BS EN 60094-7) Specification for cassettes for commercial tape records and domestic use Part 8 Specification for eight-track magnetic tap
13、e cartridge for commercial tape records and domestic use Part 9 Specification for magnetic tape cartridge for professional use Part 10 Specification for time and address codes Part 11 Guide to an address code for compact cassettes Summary of pages This document comprises a front cover, an inside fro
14、nt cover, pages i and ii, theEN title page, pages 2 to 22, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE EU
15、ROPISCHE NORM EN 60094-1 October 1993 + A1August 1994 UDC 621.395.625.3-418-181.1-777.001.2.004.12 (083.71) 681.84.083.8 Supersedes HD 311.1 S2:1991 Descriptors: Magnetic tape recording, dimensions, requirements, properties, definitions, sound recording and reproduction English version Magnetic tape
16、 sound recording and reproducing systems Part 1: General conditions and requirements (includes amendment A1:1994) (IEC 94-1:1981) Systmes denregistrement et de lecture du son sur bandes magntiques Premire partie 1: Conditions gnrales et spcifications (inclut lamendement A1:1994) (CEI 94-1:1981) Syst
17、eme fr Tonaufzeichnung und -wiedergabe auf Magnetband Teil 1: Allgemeine Bedingungen und Anforderungen (enthlt nderungen A1:1994) (IEC 94-1:1981) This European Standard was approved by CENELEC on 1993-09-22. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulat
18、e 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 Central Secretariat or to any CENELEC member. This European Standard e
19、xists 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 Central Secretariat has the same status as the official versions. CENELEC members are the national el
20、ectrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation
21、Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1993 Copyright reserved to CENELEC member Ref. No. EN 60094-1:1993 + A1:1994 EEN60094-1:1993 BSI 11-1999 2 Foreword As a consequence of the IEC-CENELEC Agreement, HD 311.1 S2:19
22、91 (IEC 94-1:1981) was submitted to the CENELEC voting procedure for conversion into a European Standard. The text of the International Standard was approved by CENELEC as EN60094-1 on22September1993. The following dates were fixed: Annexes designated “normative” are part of the body of the standard
23、. In this standard, Annex ZA is normative. Foreword to Amendment A1 The text of document 60A (CO) 152, as prepared by Subcommittee 60A: Sound recording, of IEC Technical Committee60: Recording, was submitted to the IEC-CENELEC parallel vote in March 1994. The reference document was approved by CENEL
24、EC as amendmentA1 to EN60094-1 on8March1994. The following dates were fixed: Annexes designated “normative” are part of the body of the standard. In this standard, Annex ZA is normative. latest date of publication of an identical national standard (dop) 1994-10-01 latest date of withdrawal of confli
25、cting national standards (dow) latest date of publication of an identical national standard (dop) 1995-07-01 latest date of withdrawal of conflicting national standards (dow) 1995-07-01EN 60094-1:1993 BSI 11-1999 3 Contents Page Foreword 2 Section 1. General 5 1 Scope 5 2 Definitions 5 3 Units and s
26、ymbols 5 4 Drawing office practice 5 5 Scales for graphical presentation of data 5 6 Mechanical and electrical matching requirements 6 7 High fidelity equipment and systems 6 8 Flammability 6 Section 2. Mechanical requirements 6 9 Tape dimensions 6 10 Tape speed 6 11 Direction of tape winding 7 12 M
27、echanical requirements and dimensions of recording systems according to tape carrier 7 13 Designation of magnetic tracks 8 14 Allocation and dimensions of magnetic tracks according to tape carrier 8 Section 3. Electrical requirements 8 15 Amplitude/frequency response of the recorded short-circuit fl
28、ux 8 16 Reproducing electrical amplitude/frequency response 9 17 Tolerances on recording and reproducing system characteristics 9 Section 4. Tape and programme identification 9 18 Identification of tape sides 9 19 Programme identification 10 20 Colour of leader tapes, reel-to-reel systems 10 Appendi
29、x A Explanation of the drawing system used in the different parts of IEC Publication94 14 Annex ZA (normative) Other international publications quoted in this standard with the references of the relevant European publications 21 Figure 1 Amplitude/frequency response of the recorded short-circuit flu
30、x 12 Figure 2 Tolerances on recording and reproducing system characteristics 13 Figure A.1a 14 Figure A.1b 14 Page Figure A.2a 15 Figure A.2b 15 Figure A.2c 16 Figure A.3a 17 Figure A.3b 17 Figure A.3c 18 Figure A.4a 18 Figure A.4b 18 Figure A.5a 18 Figure A.5b 19 Figure A.6a 19 Figure A.6b 19 Figur
31、e A.7a 20 Figure A.7b 20 Table I Amplitude/frequency response of the recorded short-circuit flux in decibels 114 blankEN60094-1:1993 BSI 11-1999 5 Section 1. General 1 Scope This standard applies to the dimensional, mechanical and electrical requirements for non-perforated blank and pre-recorded mag
32、netic tape and for the associated recording and reproducing systems such as reel-to-reel, cassette and cartridge. The methods of measurements and the necessary tolerances to secure interchangeability of recordings are included. 2 Definitions 2.1 terms related to audio recording and reproducing refer
33、ence is made to IEC Publication50: International Electrotechnical Vocabulary, Chapter 806: Recording and Reproduction of Sound and Video 2.2 terms related to audio-engineering, sound systems and equipment reference is made to IEC Publication50: International Electrotechnical Vocabulary, Chapter801:E
34、lectro-acoustics (in preparation), Chapter806: Recording and Reproduction of Sound and Video, and IEC Publication268-2: Sound Systems, Part2: Explanation of General Terms 3 Units and symbols The letter symbols for quantities and units in accordance with IEC Publication27: Letter Symbols to be Used i
35、n Electrical Technology. 4 Drawing office practice The drawings given in the various parts of IEC Publication94 are drawn in accordance with IEC and ISO standards. Some of the important publications are: ISO/370:1975, Toleranced Dimensions Conversion from Inches into Millimetres and Vice Versa. ISO/
36、R 406:1964, Inscription of Linear and Angular Tolerances. ISO/R 1101-1:1969 1) , Technical Drawings Tolerances of Form and of Position. PartI:Generalities, Symbols, Indications on Drawings. ISO 1101-2:1974, Technical Drawings Tolerances of Form and of Position. PartII: Maximum Material Principle. IS
37、O/R 1660:1971, Technical Drawings Tolerances of Form and of Position. PartIII:Dimensioning and Tolerancing of Profiles. ISO/R 1661:1971, Technical Drawings Tolerances of Form and of Position. PartIV: Practical Examples of Indications on Drawings. IEC Publication 617, Graphical symbols for diagrams.
38、Those elements not listed in IEC Publication 617 shall be clearly explained. An explanation of the drawing system used in the different parts of this publication is to be found inAppendix A. 5 Scales for graphical presentation of data 5.1 General Linear or logarithmic scales are recommended for grap
39、hical presentation. Linear decibel scales are equivalent to logarithmic scales. Other kinds of scales, such as double logarithmic, shall be avoided. When using decibel scales, the zero reference should, if possible, be the rated value. In those cases, where each of the scales refers directly to phys
40、ical units, it is recommended to avoid a combination of linear and logarithmic scales. 1) Under revision.EN60094-1:1993 6 BSI 11-1999 Where quantities represented by abscissae and ordinates are of the same kind, it is recommended that the same unit length be used for both. Linear scales with remote
41、zero point should be avoided as far as possible. For further information see IEC Publication263: Scales and Sizes for Plotting Frequency Characteristics and Polar Diagrams. 5.2 Scales for frequency characteristics Graphs shall be drawn with frequency in hertz as abscissae on a logarithmic scale, and
42、 level in decibels as ordinates on a linear scale. The scale ratio shall be such that the length representing one decade of frequency is the same as the length representing25dB or50dB difference in level. The preferred length per decade is 50mm. If the size of the graph is changed, the scale ratio s
43、hould be left unaltered. 6 Mechanical and electrical matching requirements 6.1 For the connectors used, reference is made to IEC Publication 268-12:Part 12: Circular Connectors for Broadcast and Similar Use; and IECPublication268-11:1987 Part 11: Application of connectors for the interconnection of
44、sound system equipment. 6.2 For the preferred matching values, reference is made to IEC Publication 268-15-15: Preferred Matching Values for the Interconnection of Sound System Components. 7 High fidelity equipment and systems For minimum electrical requirements for high fidelity equipment and syste
45、ms reference is made to IEC Publication581-4: High Fidelity Audio Equipment and Systems: Minimum Performance Requirements. Part4: Magnetic Recording and Reproducing Equipment. 8 Flammability When applicable, magnetic tapes shall comply with the flammability regulations for motion picture film as lai
46、d down in ISO Standard543:1974, Cinematography Motion-picture Safety Film Definition, Testing and Marking. Section 2. Mechanical requirements 9 Tape dimensions The dimensions shall be as follows: 10 Tape speed The rated speed during reproduction shall be in a geometrical progression with the divisor
47、2 commencing at76,2cm/s (30 in/s). The speed and tolerances apply to machines operating from supplies having frequencies and voltages as specified by the manufacturer. Speed fluctuations requirement (wow and flutter) shall be measured in accordance with IEC386 and amendment No. 1. The rated tape spe
48、eds and relative characteristics are as follows: Tape width Tape thickness 50.80mm (2.000in) 0.055 mm max. (0.0022 in max.) 25.40mm (1.000in) 12.70mm (0.500in) 6.30 mm (0.248in) 3.81 mm (0.150in) 0.020 mm max. (0.0008 in max.) 0 0.06 0 0.0024 0 0.06 0 0.0024 0 0.06 0 0.0024 0 0.06 0 0.0024 0 0.05 0
49、0.002 EN60094-1:1993 BSI 11-1999 7 When reproducing a commercial tape record at rated speed, characteristics shall be within the the following tolerances: Since tape record and cassettes cannot be tested for these requirements, the manufacturer of commercial tape record and cassettes shall control these parameters through sampling of tapes and cassettes from their production. 11 Direction of tape winding 11.1 Reel-to-reel If the top surface of a spool is distinguished by markings, by a label or
