SANS 15457-2-2009 Identification cards - Thin flexible cards Part 2 Magnetic recording technique《识别卡 薄柔性卡 第2部分 磁记录技术》.pdf

1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA

2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any

3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-22963-4 SANS 15457-2:2009Edition 2ISO/IEC 15457-2:2007Edition 2SOUTH AFRICAN NATIONAL STANDARD Identification cards Thin flexible cards Pa

4、rt 2: Magnetic recording technique This national standard is the identical implementation of ISO/IEC 15457-2:2007 and is adopted with the permission of the International Organization for Standardization and the International Electrotechnical Commission. Published by SABS Standards Division 1 Dr Late

5、gan Road Groenkloof Private Bag X191 Pretoria 0001Tel: +27 12 428 7911 Fax: +27 12 344 1568 www.sabs.co.za SABS SANS 15457-2:2009 Edition 2 ISO/IEC 15457-2:2007 Edition 2 Table of changes Change No. Date Scope National foreword This South African standard was approved by National Committee SABS SC 7

6、1J, Information technology Cards and personal identification, in accordance with procedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This SANS document was published in November 2009. This SANS document supersedes SANS 15457-2:2004 (edition 1). Reference n

7、umberISO/IEC 15457-2:2007(E)ISO/IEC 2007INTERNATIONAL STANDARD ISO/IEC15457-2Second edition2007-06-15Identification cards Thin flexible cards Part 2: Magnetic recording technique Cartes didentification Cartes flexibles fines Partie 2: Techniques denregistrement magntique SANS 15457-2:2009This s tand

8、ard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO/IEC 15457-2:2007(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefa

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11、 event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHT PROTECTED DOCUMENT ISO/IEC 2007 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electroni

12、c or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org W

13、eb www.iso.org Published in Switzerland ii ISO/IEC 2007 All rights reservedSANS 15457-2:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO/IEC 15457-2:2007(E) ISO/IEC 2007 All rights reserved iiiContents Page Foreword iv 1 Scope . 1 2 No

14、rmative references . 1 3 Terms and definitions. 2 4 General characteristics 4 4.1 Introduction . 4 4.2 Requirements common to all formats 4 4.3 Environmental conditions 5 5 Magnetic stripe characteristics . 5 5.1 Stripe surface 5 5.2 Stripe adherence. 6 5.3 Stripe life 6 5.4 Magnetic characteristics

15、 7 5.5 Magnetic stripe zone reservation 7 6 TFC.0 data recording 7 6.1 Magnetic track characteristics 7 6.2 Encoding characteristics . 8 7 TFC.1 data recording 9 7.1 Magnetic track characteristics 9 7.2 TFC.1-specific stripe requirements. 10 7.3 Encoding characteristics . 11 8 TFC.5 data recording 1

16、2 8.1 Magnetic track characteristics 12 8.2 TFC.5-specific stripe requirements. 12 8.3 Encoding characteristics . 12 Annex A (normative) Magnetics classes . 14 Annex B (normative) Encoding classes. 16 Bibliography . 19 SANS 15457-2:2009This s tandard may only be used and printed by approved subscrip

17、tion and freemailing clients of the SABS .ISO/IEC 15457-2:2007(E) iv ISO/IEC 2007 All rights reservedForeword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies th

18、at are members of ISO or IEC participate in the development of International Standards through technical committees established by the respective organization to deal with particular fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other intern

19、ational organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work. In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1. International Standards are drafted in accordance with the rules given i

20、n the ISO/IEC Directives, Part 2. The main task of the joint technical committee is to prepare International Standards. Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as an International Standard requires approval by a

21、t least 75 % of the national bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights. ISO/IEC 15457-2 was prepared by Joint Tec

22、hnical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 17, Cards and personal identification. This second edition cancels and replaces the first edition (ISO/IEC 15457-2:2001), Annex A of which has been technically revised. ISO/IEC 15457 consists of the following parts, under the ge

23、neral title Identification cards Thin flexible cards: Part 1: Physical characteristics Part 2: Magnetic recording technique Part 3: Test methods SANS 15457-2:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .INTERNATIONAL STANDARD ISO/IEC 1

24、5457-2:2007(E) ISO/IEC 2007 All rights reserved 1Identification cards Thin flexible cards Part 2: Magnetic recording technique 1 Scope Thin flexible cards (TFCs) are used to automate the controls for access to goods or services such as mass transit, highway toll systems, car parks, vouchers and stor

25、ed value. For these applications, data can be written and/or read by machines using various recording techniques: magnetic stripe, optical character recognition (OCR), bar code, etc. This part of ISO/IEC 15457 specifies the magnetic stripe and encoding characteristics of thin flexible cards at two p

26、oints in the cards life cycle: at the point of loading into the card-issuing equipment; at the point of issue to the public. Guidance concerning the storage and usage of finished cards (including magnetic stripe cards) under various environmental conditions is given in ISO/IEC 15457-1. 2 Normative r

27、eferences The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 4287, Geometrical Product Specifica

28、tions (GPS) Surface texture: Profile method Terms, definitions and surface texture parameters ISO/IEC 7811-2, Identification cards Recording technique Magnetic stripe Low coercivity ISO/IEC 7811-6, Identification cards Recording technique Magnetic stripe High coercivity ISO/IEC 15457-1, Identificati

29、on cards Thin flexible cards Part 1: Physical characteristics ISO/IEC 15457-3, Identification cards Thin flexible cards Part 3: Test methods SANS 15457-2:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO/IEC 15457-2:2007(E) 2 ISO/IEC 20

30、07 All rights reserved3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO/IEC 15457-1 and the following apply. 3.1 track area of stripe surface occupied by the data encoded by a single channel of the magnetic recording write/read interface 3.2 central st

31、ripe stripe centred on the widthwise axis of the card 3.3 lateral stripe any widthwise stripe which is not centred on the widthwise axis of the card 3.4 re-usable card durable card able to be recovered from the field (generally by automatic equipment operation) and re-issued 3.5 unused unencoded car

32、d card possessing all the components required for its intended purpose, which has not been subjected to any personalisation or testing operation and which has been stored in a clean environment with no more than a 48 h exposure to daylight at temperatures between 5 C and 30 C and a humidity between

33、10 % and 90 % without experiencing thermal shock 3.6 unused encoded card card according to 3.5 that has only been encoded with all the data required for its intended purpose (e.g. magnetic encoding, printing, etc.)1)3.7 returned card card according to 3.6 after it has been issued to the card holder

34、and returned for the purpose of testing (e.g. re-usable card returned for possible re-issue)2)3.8 Ra, Rzmeasures of surface irregularity as defined in ISO 4287 3.9 maximum field, Hmaxmaximum absolute magnetic field strength applied as described by the test method 3.10 coercivity, HcM= HcJcontinuousl

35、y applied magnetic field which reduces the magnetisation to zero from a previous maximum magnetisation state in the opposite direction, the quantity of interest being that which is measured parallel to the longitudinal axis of the stripe 1) The definitions used in ISO/IEC 7811 refer to embossing and

36、 electronic encoding, which are not defined in ISO/IEC 15457. However, printing on issue (as opposed to pre-printing) frequently accompanies magnetic encoding in applications of thin flexible cards. 2) In certain applications of thin flexible cards, the purpose of testing returned cards is to establ

37、ish their suitability to be re-issued for re-use. Such testing is generally done automatically by bulk sorter/encoder equipment. SANS 15457-2:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO/IEC 15457-2:2007(E) ISO/IEC 2007 All rights

38、reserved 33.11 longitudinal squareness, SQ = Mr/M (at Hmax) ratio of the value of magnetisation (Mr) at zero magnetic field (H=0) after the application and removal of the maximum field (Hmax) to the magnetisation (M) at the maximum field applied (Hmax) measured along the longitudinal axis of the str

39、ipe 3.12 switching field by derivative, SFDthe width at half height of the differentiated static magnetisation curve M(H) divided by the coercivity from the same curve 3.13 switching field by slope, SFS( /H2/-/H1/)/ HcM, where M(-/H1/) = 0,5Mrand M(-/H2/) = -0,5 Mr ; the difference between the field

40、 values at the intercept of the static magnetisation M(H) loop with M(H) = 0,5Mrand M(H) = -0,5Mr, divided by the coercivity 3.14 recording technique technique, such as magnetic or optical encoding, used to store data on the card 3.15 nominal bit density, DRencoding density specified for a track 3.1

41、6 maximum test current, Imaxupper of two test write currents used for testing TFC magnetic stripes 3.17 maximum test density, Dmaxupper of two test recording densities used for testing TFC magnetic stripes 3.18 minimum test current, Iminlower of two test write currents used for testing TFC magnetic

42、stripes 3.19 minimum test density, Dminlower of two test recording densities used for testing TFC magnetic stripes 3.20 individual signal amplitude, Uibase-to-peak amplitude of a single readback signal pulse 3.21 average signal amplitude, UAarithmetic mean of the absolute values of the individual si

43、gnal amplitudes found in a readback waveform: ni=1A= (where is the number of individual signal amplitudes)kkUUnnSANS 15457-2:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO/IEC 15457-2:2007(E) 4 ISO/IEC 2007 All rights reserved3.22 mo

44、dulation, m range of variation of a readback signal defined by AUUUm=2iminimaxwhere Uiis the individual readback signal amplitude and UAis the average readback signal amplitude recorded at Dmaxand Imax4 General characteristics 4.1 Introduction Three card sizes, TFC.0, TFC.1 and TFC.5, are defined in

45、 ISO/IEC 15457-1. Common physical characteristics and the geometrical and topographical characteristics of each card size are specified in ISO/IEC 15457-1. In this part of ISO/IEC 15457, the magnetic stripe and track characteristics specific to each size of card are given in separate clauses. Common

46、 characteristics are specified in Clause 4. Specifications for the permitted magnetic and encoding characteristics are given in the annexes. All clauses in all parts of ISO/IEC 15457 apply to finished cards or to the reels/packs from which such cards are taken. Certain clauses however, such as durab

47、ility, concern the characteristics of the card throughout its life. As a matter of convenience and practicality, certain tests can be carried out on unfinished cards where it can be demonstrated that no significant change in that property can arise during subsequent processing. 4.2 Requirements comm

48、on to all formats 4.2.1 General requirements Thin flexible cards may be finished in a variety of ways, according to the requirements of the system in which they are to be used. This part of the standard deals with those which are equipped with a magnetic stripe. Stripes may be magnetically encoded,

49、in accordance with this part of ISO/IEC 15457. The addition of a magnetic stripe and the encoding of that stripe shall not affect the continued conformance of the finished cards to the other applicable parts of ISO/IEC 15457. Magnetic stripes, however presented, shall be free from defects which could interfere with usage, such as joins, discontinuities, loose particles, embedded debris, creases, indentations and high spots. They shall not adhere to, or leave an impression on, the adjacent card