1681 NTERNATIONAL STANDARD TSO INTERNATIONAL ORGANIZATION FOR STANDARDIZATION·MEKAYHAPOAHA OPFAHH3ALIMHA HO CTAHIAPTV3AIWH.ORGANISATION INTERNATIONALE DE NORMALISATION Information processing - Unpunched paper cards Specification First edition -- 1973-12-01 UDC 681.327.45 Ref. No. ISO 1681-1973 (E) 1681-1973 Descriptors : data processing, data storage devices, punched cards, paper products, specifications, characteristics, dimensions, tests. Price based on 10 pages Copyright International Organization for Standardization Not for Resale 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 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, 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, Prior to 1972, the results of the work of the Technical Committees were published as Iso Recommendations; these documents are now in the process of being transformed into International Standards. As part of this process, International Technical Committee ISO/TC 97, Computers and information processing. The Member Bodies of the following countries approved the Recommendation : Australia Greece Spain Belgium israel Sweden Italy Brazil Switzerland Canada Japan Thailand New Zealand Turkey Czechoslovakia Peru Egypt, Arab Rep. of United Kingdom France Poland U.S.A. Germany Romania No Member Body expressed disapproval of the Recommendation. @ International Organization for Standardization, 1973 : Printed in Switzerland Copyright International Organization for Standardization ed without license from IHS Not for Resale ISO 1681-1973 (E) INTERNATIONAL STANDARD Information processing -- Unpunched paper cards - Specification 1 SCOPE AND FIELD OF APPLICATION Among these defects are : holes, magnetic particles, electrically conductive particles, dust, fibres protruding This Internationat Standard specifies the characteristics of from edges or surfaces of the card, abrasive materials, general purpose unpunched paper cards to be used for residual chemicals, slime spots, other brittle areas and information interchange between different punched card transiucent spots which could cause reading errors in equipments. equipment. 2 REFERENCES 3.3 Card dimensions ISO/R 534, Determination of the thickness of single sheets of paper. 3.3.1 Nominal dimensions (see figure 1). ISO/R 536, Determination of paper substance. The card be nominal rectangle of shall a ISO/R 1974, Paper - Determination of tearing resistance. 187,32 X 82,55 mm (7.375 X 3.250 in). ISO/R 2144, Paper and board - Determination of ash. Iso 2493, Paper and board -- Determination of stiffness - 3.3.2 Actual dimensions Static bending method. All points on the edges of the card except as modified by ISO 2494, Paper and board Determination of 3.6 (Corners) shall fall between two concentric, similarly roughness -- Constant-pressure air-flow method. 1) aligned, parallelograms which are dimensioned as follows : ISO 2758, Paper -- Determination of bursting strength. 1) outer parallelogram : height 82,73 mm (3.257 in) 3 DETAIL REQUIREMENTS base length 187,45 mm (7.380 in) 3.1 Grain inner paralletogram : The grain of the paper shall be in the direction of the card length. height 82,47 mm (3.247 in) base length 187,20 mm (7.370 in) 3.2 Defects angles comprised between 90° + 5' et 90° - 5' (equivalent. Cards shall be free from defects which may cause excessive wear or interfere with the normal operation of data to 0,12 mm (0.004 7 in) projection of short side onto processing equipment. long side).