ISO-1859-1973.pdf

INTERNATIONAL STANDARD 1859 INTERNATIONAL ORGANIZATION FOR STANDARDIZATION .MEXAYHAPOAHAR OPrAHHJAUIlR IlO CTAHAAPTH3AUHH.ORGANlSATlON INTERNATIONALE DE NORMALISATION Information processing - Unrecorded magnetic tapes for interchange instrumentation applications - General dimensional requirements First edition - 1973-12-01 iii UDC 681.327.64 Ref. No. IS0 1859-1973 (E) 2 : Descriptors : data processing, data storage devices, magnetic tapes, dimensions. s cc Price based on 2 pages Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 22:40:12 MDTNo reproduction or networking permitted without license from IHS -,-,- FOREWORD IS0 (the International Organization for Standardization) is a worldwide federation of national standards institutes (IS0 Member Bodies). The work of developing International Standards is carried out through IS0 Technical Committees. Every Member Body interested in a subject for which a Technical Committee has been set up has the right to be represented on that Committee. International organizations, governmental and non-governmental, in liaison 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 IS0 Council. Prior to 1972, the results of the work of the Technical Committees were published as IS0 Recommendations; these documents are now in the process of being transformed into International Standards. As part of this process, Technical Committee lSO/TC 97, Computers and information processing, has reviewed IS0 Recommendation R 1859-1971 and found it technically suitable for transformation. International Standard IS0 1859 therefore replaces IS0 Recommendation R 1859-1971, which was approved by the Member Bodies of the following countries : Australia Belgium Czechoslovakia France Greece Italy Japan New Zealand Portugal Romania South Africa, Rep. of Spain Sweden Switzerland Thailand United Kingdom U.S.A. U.S.S.R. The Member Body of the following country expressed disapproval of the Recommendation on technical grounds : Germany* * Subsequently, this Member Body approved the Recommendation. 0 International Organization for Standardization, 1973 l Printed in Switzerland Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 22:40:12 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD IS0 1859-1973 (E) Information processing - Unrecorded magnetic tapes for interchange instrumentation applications - General dimensional requirements 1 SCOPE AND FIELD OF A?PLICATION This International Standard specifies the materials, the tape wind, and the dimensions of magnetic tape used in interchange instrumentation applications. NOTE - Physical properties and test methods are specified in IS0 2690. 2 REFERENCES ISO/R 1858, General purpose hubs and reels, with 76 mm (3 in) centrehole, for magnetic tape used in interchange instrumentation applications. ISO/R 1860, Precision reels for magnetic tape used in interchange instrumentation appliw tion. IS0 2690, Unrecorded magnetic tapes for instrumentation appliw tions - Physical properties and test methods. 3 MATERIALS The tape shall consist of a suitable, continuous and splice-free base material coated on one side with a durable, yet flexible layer of ferromagnetic material. 4 TAPE WIND 4.1 The tape shall be wound on hubs or reels complying with the specifications for precision reels or general purpose hubs and reels stated in ISO/R 1860 and ISO/R 1858. NOTE - Smaller reels with 8 mm (5/16 in) centreholes are under consideration. 4.2 The tape shall be wound with the magnetic coated surface facing the hub of the reel. 5 DIMENSIONS 5.1 Standard widths The standard widths Shalt be as listed in table 1. 5.2 Thickness Maximum total thickness is controlled by standard reel dimensions, length and E value. NOTE - The maximum total thickness of the base plus the coating shall not exceed 0,055 mm (0.002 2 in). The nominal base thickness is given in table 2. 5.3 Length Tape shall be supplied in the minimum lengths given in table 2. 5.4 E value The minimum E value shall be 2.5 mm (0.10 in). (The E value is the radial distance by which the reel flanges extend beyond the outermost layer of the tape.) 1 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 22:40:12 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 1859-1973 (E) TABLE 1 Nominal Nominal base base thickness thickness I 1 1 I I I I 1 I m m ft m m ft m m ft mm in m m ft m ft m m m m ft ft m m m ft m m ft m m ft mm in f 1,036 0.001 1,036O.OOl 5 normal normal 365 365 366 1200 366 1200 760 760 7622500 7622500 1520 1520 15245000 15245000 - - - - - - - - - - - - 1,025O.OOl 1,025 0.001 0 normal normal - - - - - - 1 100 1 100 1097 3600 1097 3600 2 200 2 200 2 195 7 200 2 195 7 200 - - - - - - - - - - - - Standard widths mm in 6.26 f 0.05 0.246 f 0.002 12.70-E ,. O-500 - ;.oo4 19.05 0” O _ , o “0.750 - 0.004 25-o,10 0 00 - 0” 004 m80-o.10 0 2.000 - ;.oo4 l Although shown in this table, this dimension is not a preferred width. TABLE 2 I I Tape lengths by reel diameters Tape lengths by reel diameters 203 mm (6 in) reel 203 mm (6 in) reel 266 mm (10.5 in) reel 266 mm (10.5 in) reel 356 mm (14 in) reel 356 mm (14 in) reel 361 mm (15 in) reel 361 mm (15 in) reel 406 mm (16 in) reel 406 mm (16 in) reel Coating L Coating L thickness Nominal Minimum Nominal thickness Nominal Minimum Nominal Minimum Nominal Minimum Nominal Minimum Nominal Minimum Nominal Minimum Minimum Nominal Nominal Minimum Minimum length* length* true length length* true length true length length* true length length* length* true length length* true length length* true length true length length* length* true length true length 1.0250.001 0 fine fine - - - - - 1400 1400 14024600 14024600 2600 2600 26049200 26049200 3300 3300 329219609 329219609 3600 3600 3760124Of 3760124Of l These nominal lengths are metric conversions, rounded for convenience of description, of original values in feet. NOTE - Tape lengths for smaller reels with 6 mm f5/16 in) centreholes are under consideration. 2 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 22:40:12 MDTNo reproduction or networking permitted without license from IHS -,-,-