1、ADOPTED FOR USE BYTHE FEDERAL GOVERNMENTSEE NOTICE ON INSIDEANSI INCITS 21-1967 (R2002)(formerly ANSI X3.21-1967 (R1997) Rectangular HolesIn Twelve-Row Punched CardsPUB 13This standard was approved as a Federal information Processing Standard by the Office of Management and Budget on June 16, 1971.
2、Details concerning the use of this standard within the Federal Government are contained in FIPS PUB 13, RECTANGULAR HOLES IN TWELVE-ROW PUNCHED CARDS. For a complete list of the publications available in the FED- ERAL INFORMATION PROCESSING STANDARDS Series, write to the Office of Technical Informat
3、ion and Publications, National Bureau of Standards, Washington, D.C. 20234. ANSI X3.2 1-1967 American National Standard Rectangular Holes in Twelve-Row Punched Cards This standard fs one of approximately 6000 approved as either a USA Standard or as an American Standard. It became an American Nationa
4、l Standard in October 1969 when the Institute changed its name to American National Standards Institute, Inc. ANSI, 1430 Broadway, New York, N.Y. 10018 Sponsor Business Equipment Manufacturers Association Approved October 27,1967 United States of America Standards Institute AmericanNationalStandardA
5、pproval of an American National Standard requires review by ANSI that therequirements for due process, consensus, and other criteria for approval havebeen met by the standards developer.Consensus is established when, in the judgment of the ANSI Board of StandardsReview, substantial agreement has bee
6、n reached by directly and materiallyaffected interests. Substantial agreement means much more than a simplemajority, but not necessarily unanimity. Consensus requires that all views andobjections be considered, and that a concerted effort be made toward theirresolution.The use of American National S
7、tandards is completely voluntary; their existencedoes not in any respect preclude anyone, whether he has approved the standardsor not, from manufacturing, marketing, purchasing, or using products, processes,or procedures not conforming to the standards.The American National Standards Institute does
8、not develop standards and will inno circumstances give an interpretation of any American National Standard.Moreover, no person shall have the right or authority to issue an interpretation ofan American National Standard in the name of the American National StandardsInstitute. Requests for interpreta
9、tions should be addressed to the secretariat orsponsor whose name appears on the title page of this standard.CAUTION NOTICE: This American National Standard may be revised orwithdrawn at any time. The procedures of the American National StandardsInstitute require that action be taken periodically to
10、 reaffirm, revise, or withdrawthis standard. Purchasers of American National Standards may receive currentinformation on all standards by calling or writing the American National StandardsInstitute.Published byAmerican National Standards Institute11 West 42nd Street, New York, New York 10036Copyrigh
11、t 1967 by Information Technology Industry Council (ITI)All rights reserved.No part of this publication may be reproduced in anyform, in an electronic retrieval system or otherwise,without prior written permission of ITI, 1250 Eye Street NW,Washington, DC 20005.Printed in the United States of America
12、Foreword (This Foreword is not a part of the USA Standard Rectangular Holes in Twelve-Row Punched Cards, X3.21-1967.) This publication is one of a series of standards relating to information interchange between in- formation processing systems, communications systems, and associated equipment throug
13、h the medium of punched paper cards. This standard specifies the size and locations of rectangular holes in twelve-row, 3% inch wide punched cards. A related standard, X3.1 1-1966 specifies the dimensions, quality of paper, and test methods of 7% inch length cards for information processing. This st
14、andard was developed by a group of highly qualified and experienced punched-card specialists representing manufacturers and users of card stock, cards, and card processing equip- ment. Adherence to this standard will eliminate many misunderstandings. Suggestions for improvement gained in the use of
15、this standard will be welcome. They should be sent to the United States of America Standards Institute, 10 East 40th Street, New York, N.Y. 10016. The USA Standards Committee on Computers and Information Processing, X3, had the follow- ing personnel at the time it processed and approved this standar
16、d. C. A. Phillips, Chahnan P. B. Goodstat, Secretary Organization Represented Administrative Management Society Air Transport Association American Bankers Association American Gas Association American Newspaper Publishers Association American Petroleum Institute Association of American Railroads Ass
17、ociation for Computing Machinery Business Equipment Manufacturers Association Data Processing Management Association . Edison Electric Institute . . . I. Electronic Industries Association . . Engineers Joint Council . . . . . General Services Administration Institute of Electrical and Electronics En
18、gineers Insurance Accounting and Statistical Association International Communications Association Joint Users Group . . Life Office Management Association . . . National Bureau of Standards . . . National Machine Tool Builders Association . . National Retail Merchants Association . . . Scientific Ap
19、paratus Makus Association Systems and Procedures Association . . . . . . . . . . . Telephone Group . . . . . . USA Standards Committee on Office Machinery; X4 . . . .” . U. S. Department of Defense . . . . . . . . . Name of Representative C S. Everhardt F. C. White G. W. Frey E. A. Cotty W. D. Rineh
20、art F. A. Gitzendanner R. A. Petrash D. T. Ross R. Bemer W H. Burkhart R. F. Clippinger C. T. Deere U. C. S. Dilks S. Erdreich I. M. Gardoff R. W. Green J. A. Haddad R. 3. Mindlin G. Poorte D. J. Reven R. C. Elliott H. D. Limmer . H. H. Smith W. M. Carlson . M. W. Burris G. W. Patterson W. Bregartne
21、r C. L. Hutchinson R. E. Utman E. Boulanger J. H. Wegstein . . . E. Koschella E. Langtry W. B. Schultz . . E. Tomeski . . . . . . L. W. Claussen . . . . . C. E. Ginder . . G. L. Bowlby The X3.2 Subcommitte6 had the following personnel at the time it processed and approved this standard: L. L. Griffi
22、n, Chairman R. Adams D.A. Kerr J. F. Auwaerter R. Kudisch E. A. Avakian J. L. Little T. R. Bousquet C. E. Mackenzie R. M. Brown W. H. McKenzie N. Clark M. Mendelsohn C. Crandall G. L. Murphy R. J. Donahue J. K. Nelson S. Erdreich H. Spielman D. E. Holmes James E. Taunt H. R. Hoots R. E. Utman R. M.
23、Ireland E. F. Vidro, Jr M. R. Jepson G. E. Williams The Physical Standards Group of the X3.2.3 Task Group on Punched Cards developed this standard and had the following personnel: H. J. Bode R. M. Brown R. N. Eichorn T. R. Evans R. H. Hunter P. A. Schenk J. J. Krause N. Locke C. E. Mackenzie R. J. R
24、idolfi F. M. Schaller Contents SECTION PAGE l.Scope. . . . 2. Detail Requirements . . . . . . . . . 2.1 Size . . . . . 2.2 Location . . . . 2.3 Environment . . . . Fig. 1 . . . . . . Appendix Environmental Considerations . . . . . . Al. Cardstock Dimensional Instability A 1.1 Variation of Card Dimen
25、sions . . . . . . . . . . . . . A 1.2 Variation in Hole Locations . . . . . . Al.3 Additional Information . . . . . A2. User Responsibility . . . . . . . 7 . . . . . 8 8 . . . . . . 8 . . . . . . . . . . 8 . . . . . . . . . . . . 8 . . 8 American National Standard Rectangular Holes in Twelve-Row Pun
26、ched Cards 1. Scope This standard specifies the size and location of rectangular holes in twelve-row 3%-inch wide punched cards. To be a processable docu- ment, suitable for information interchange. cards must also meet USA Standard Specifi- cations for General Purpose Paper Cards for Information Pr
27、ocessing, X3.1 1-1966. 2. Detail Requirements (See Fig. 1) 2.1 Size. All edges of the hole shall fall be- tween two concentric rectangles whose edges Fig. 1 Y x- X N SPACES NOTE 2 All dimensions are in inches. NOTES: ( 1) Y-Y is perpendicular to X-X and intersects the mid-point of right edge of card
28、. (2) Vertical centerline of holes may vary fO.O1O from Y-Y at time of punching (see 2.2.3.2) and 20.018 at time of reading. (3) Horizontal centerline of holes may vary kO.010 from X-X at time of punching (see 2.2.3.2) and kO.018 at time of reading. are parallel to the X and Y datum lines. (See 2.2.
29、1.1 and 2.2.2.1.11The rectangles are dimen- sioned as follows: Outer height: 0.126 inch length: 0.056 inch Inner height: 0.124 inch length: 0.054 inch 2.2 Location. All holes shall nominally center on the intersection of longitudinal and trans- verse grid lines located as in the following. 2.2.1 Lon
30、gitudinal Grid Lines. Twelve longi- tudinal grid lines (rows) shall be spaced at increments of 0.250 inch from the X datum line. 2.2.1.1 X Datum Line-A horizontal line lying along the top edge of the card. 2.2.2 Transverse Grid Lines. Transverse grid lines (columns) shall be spaced at incre- ments o
31、f 0.087 inch from a transverse grid line spaced 0.251 inch from the Y datum line. 2.2.2.1 Y Datum Line-A vertical line exactly at right angles to the X datum line and intersecting the mid-point of the right edge of the card. 2.2.3 Tolerance on Hole Location. 2.2.3.1 Reading Tolerance-The center- lin
32、e of each hole shall be within 0.018 inch of their corresponding logitudinal and trans- verse grid lines at the time of reading. 2.2.3.2 Punching Tolerance - Because changes in environment affect the dimensions of paper cards (see Appendix), the centerlines of each hole should be within 0.010 inch o
33、f their corresponding logitudinal and transverse grid lines at the time of punching. 2.3 Environments. Environment is not speci- fied in this standard but should be agreed upon by those responsible for punching, reading, transporting, and storing cards. 7 Appendix (This Appendix is not a part of the
34、 USA Standard Rectangular Holes in Twelve-Row Punched Cards, X3.21-1967, but is included to facilitate its use.) Environmental Considerations A 1. Cardstock Dimensional Instability Cardstock used for punched cards is inher- ently subject to changes in dimensions with changes in environmental conditi
35、ons, particu- larly changes in relative humidity (RH). Al.1 Variation of Card Dimensions. At a con- stant temperature of 73F, a change in relative humidity from 20 percent to 75 percent, or from 75 percent to 20 percent, will change the dimensions of the card as much as 0.018 inch in length and 0.02
36、3 inch in width. Temperature variations within ranges nor- mally maintained for human comfort will not substantially affect dimensional changes as stated above. Al.2 Variation in Hole Location. The location of punched holes will vary in accordance with the above variations in card dimensions. Al .3
37、Additional Information. For additional information, see the Appendix to the USA Standard Specifications for General Purpose Paper Cards for Information Processing, X3.1 1-1966. A2. User Responsibility The users of card equipment must accept the responsibility for maintaining the proper environment t
38、o assure reliable information interchange. Maximum reliability of information inter- change will result when cards are punched, read, transported, and stored at the same temperature and RH levels. Excursions in RH in excess of 20 percent should be avoided after the cards are punched. Cards exposed to above 75-percent RH undergo dimensional changes, some of which, due to relaxation of paper fiber stresses, may not be reversible when the cards are reconditioned to below 75-percent RH.
