3802 (Tso) NTERNATIONAL STANDARD INTERNATIONAL ORGANIZATION FOR STANDARDIZATION·MEKAYHAPOIHAA OPTAHM3ALIM HIO CTAHIAPTW3AIIHM.ORGANISATION INTERNATIONALE DE NORMALISATION Information processing - General purpose reels with 8 mm (5/16 in) centre hole for magnetic tape for interchange instrumentation applications Traitement de I'information -- Bobines a usage general, avec trou central de 8 mm (5/16 in), pour bandes magnetiques pour I'enregistrement de mesures First edition - 1976-10-15 ISO 3802-1976 (E) UDC 681.327.64 Ref. No. 1ISO 3802-1976 (E) Descriptors : data processing, information interchange, instrumentation recording, magnetic tapes, bobbins, specifications, dimensions. Price based on 3 pages Copyright International Organization for Standardization d without license from IHS Not for Resale No FOREWORD IsO (the International Organization for Standardization) is a worldwide federation of national standards institutes (ISO Member Bodies). The work of developing International Standards is carried out through ISO Technical Committees. Every Member Body interested in a subject for which a Technicat Committee has been set up has the right to be represented on that Committee. International organizations, governmental and non-governmental, in liaison with IsO, aiso 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. International Standard iSO 3802 2 was drawn up by Technical Committee ISO/TC 97, ( Computers and information processing, and was circulated to the Member Bodies in July 1975. It has been approved by the Member Bodies of the following countries : Italy Australia Romania Belgium ueder South Africa, Rep. of Mexico Brazil Turkey Czechoslovakia Netherlands United Kingdom France New Zeaiand U.S.S.R. Hungary Poland The Member Body of the following country expressed disapproval of the document on technical grounds : Germany @ International Organization for Standardization, 1976 : Printed in Switzerland Copyright International Organization for Standardization ed without license from IHS Not for Resale INTERNATIONAL STANDARD ISO 3802-1976 (E) Information processing - General purpose reels with 8 mm (5/16 in) centre hole for magnetic tape for interchange instrumentation applications SCOPE AND FIELD OF APPLICATION 2.6 The reel surfaces defined by dimensions M and L shall be parallel within 0,2 mm (0.008 in). This International Standard specifies the dimensions of general purpose reels with 8 mm (5/16 in) centre hole, 2.7 The reel surfaces defined by dimensions N and B shall instrumentation application. be paraltel within 0,5 mm (0.02 in). 2.8 The eccentricity of the outside cylindrical surface of 2 HUB AND REEL DIMENSIONS the hub (diameter C), with respect to the centre hole (diameter A) shall not exceed 0,2 mm (0.008 in). 2.1 The dimensions of the reels shall be as specified in the figure, and tables 1 and 2. 2.9 The maximum taper of the outside cylindrical surfac of the hub (diameter C), measured over the length N, shall 2.2 Reels shall be symmetrical to permit mounting from be 0,08 mm (0.003 in). either side. 2.10 The eccentricity of the outside diameter of the 2.3 Bosses, ribs, or raised designs are permitted on the flanges (diameter B) with respect to the centre hole outside surfaces of the flanges provided they do not extend (diameter A) shall not exceed 0,5 mm (0.02 in). beyond the planes defined by dimension M. 2.4 Flanges may have holes of convenient size, shape, and location to facilitate threading. 3 MATERIAL 2.5 Reels having diameter C equal to or greater than 45 mm (1.77 in), shall have at least one drive hole Plastics material (for example, high impact polystyrene) (diameter P). Two or three symmetrically spaced drive or metal (for example, aluminium alloy) may be used, dependent upon the duty. holes are optional. Copyright International Organization for Stand