SIST EN 28064:1997

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Information processing - Reels for 12,7 mm (0.5 in) wide magnetic tapes - Sizes 16, 18 and 22 (ISO 8064:1985)Informationsverarbeitung - Spulen für 12,7 mm (0.5 in) breite Magnetbänder - Größen 16, 18 und 22 (ISO 8064:1985)Traitement de l'information - Bobines pour bandes magnétiques de 12,7 mm (0.5 in) de large - Types 16, 18 et 22 (ISO 8064:1985)Information processing - Reels for 12,7 mm (0.5 in) wide magnetic tapes - Sizes 16, 18 and 22 (ISO 8064:1985)35.220.22Magnetni trakoviMagnetic tapesICS:Ta slovenski standard je istoveten z:EN 28064:1993SIST EN 28064:1997en01-december-1997SIST EN 28064:1997SLOVENSKI
STANDARD



SIST EN 28064:1997



SIST EN 28064:1997



SIST EN 28064:1997



- International Standard INTERNATIONAL ORGANIZATION FOR STANDARDIZATION@MEI+C,4YHAPOflHAR OPrAHM3AWlR fl0 CTAHflAPTM3ALW@ORGANISATION INTERNATIONALE DE NORMALISATION Information processing - Reels for 12,7 mm (0.5 in) wide magnetic tapes - Sizes 16, 18 and 22 Traitemen t de l’in forma tion - Bobines pour bandes magnktiques de 12,7 mm (0,5 in) de large - Types 16, 18 et 22 First edition - 1985-06-15 U DC 681.327.64 Ref. No. ISO 8064-1985 ( Descriptors : data processing, information interchange, data storage devices, magnetic tapes, half-inch magnetic tapes, bobbins, specifications, dimensions, labelling. Price based on 6 pages SIST EN 28064:1997



Foreword ISO (the International Organization for Standardization) is a worldwide federation of national Standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Esch member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, govern- mental and non-governmental, in Iiaison with ISO, also take part in the work. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the ISO Council. They are approved in accordance with ISO procedures requiring at least 75 % approval by the member bodies voting. International Standard ISO 8064 was prepared by Technical Committee ISO/TC 97, lnforma tion processing s ystems. 0 International Organkation for Standardization, 1985 Printed in Switzerland ii SIST EN 28064:1997



Contents Page 1 Scope and field of application . 1 2 References . 1 3 Conformance . 1 4 Description . 1 5 Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 6 Dimensions . 2 7 Other physical characteristics . 3 8 Identification of ownership . 3 9 Manufacturer’s reel identification . 3 10 Interchange label . 3 11 Write-enable ring. . 3 Annex Additional data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 SIST EN 28064:1997



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INTERNATIONALSTANDARD ISO 80644985 (E) Information processing - Reels for 12,7 mm (0.5 in) wide magnetic tapes - Sizes 16, 18 and 22 1 Scope and field of application This International Standard specifies the characteristics of three sizes of reels for 12,7 mm (0.5 in) wide magnetic tape to allow physical interchangeability of such reels. The sizes are size 16 size 18 size 22 Their dimensions differ only in the Overall diameter of their flanges. All other requirements of this International Standard apply equally to all three sizes. All requirements refer to empty reels, except for 8.2 which refers to full reels. Reels specified in this International Standard are intended for applications where the larger reel (size 27) specified in ISO 1864 is not used. Reels complying with this International Standard cannot be used with the self-loading cartridge specified in ISO 6098. NOTE - Numeric values in the SI and/or Imperial measurement System in this international Standard may have been rounded off and therefore are consistent with, but not exactly equal to, each other. Either System may be used, but the two should be neither intermixed nor reconverted. The original design was made using the Imperial measurement System. 2 References ISO 1864, Information processing - Unrecorded 12,7 mm (0.5 in) wide magnetic tape for information interchange - 32 ftpmm (800 ftpi) MZ7, 126 ftpmm (3 200 ftpi) Phase en- coded and 356 ftpmm (9 042 ftpi) NRZI. ISO 6098, lnforma tion processing - Self-loading cartridges for 12,7 mm (0.5 in) wide magnetic tape. 4 Description A reel, in accordance with this International Standard is shown in the figure, for illustrative purposes. The reel shall comprise a hub and two flanges. The front flange shall exhibit a circular re- lieved area. The rear flange shall exhibit a circular groove for a write-enable ring. 5 Construction 5.1 Cross-section Reels shall be constructed such that any Cross-section taken through the central axis of the reel conforms to the cross- section shown in the figure. The ring groove may have a recess to accommodate the write- enable ring tab, as an Option. This recess shall not interfere with normal ta’pe transport Performance. 5.2 Symmetry of reel Reels shall not be symmetrical, the flanges differing from each other as to the presence or absence of a relieved area or the write-enable ring groove, which shall be adjacent to the moun- ting pedestal for correct machine Operation. 5.3 Hub and flanges Hub and flanges need not be integral, but may be separate Parts at the manufacturer’s Option as long as all requirements of this International Standard are met. 5.4 0-utside surfaces of flanges 3 Conformance A reel is in conformance with this International Standard when it has one of the three diameters specified in 6.3 and meets all other mandatory requirements of this International Standard. Bosses, ribs or raised designs are permitted on the outside sur- face of the flang
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