SIST EN 27811-2:1998
(Main)Identification cards - Recording technique - Part 2: Magnetic stripe (ISO 7811-2:1988, ed. 1)
Identification cards - Recording technique - Part 2: Magnetic stripe (ISO 7811-2:1988, ed. 1)
Kennkarten - Aufzeichnungstechnik - Teil 2: Magnetstreifen (ISO 7811-2:1988, Ausg. 1)
Cartes d'identification - Technique d'enregistrement - Partie 2: Magnétique (ISO 7811-2:1988, éd. 1)
Identification cards - Recording technique - Part 2: Magnetic stripe (ISO 7811-2:1985)
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Identification cards - Recording technique - Part 2: Magnetic stripe (ISO 7811-2:1985)Kennkarten - Aufzeichnungstechnik - Teil 2: Magnetstreifen (ISO 7811-2:1988, Ausg. 1)Cartes d'identification - Technique d'enregistrement - Partie 2: Magnétique (ISO 7811-2:1988, éd. 1)Identification cards - Recording technique - Part 2: Magnetic stripe (ISO 7811-2:1988, ed. 1)35.240.15Identifikacijske kartice in sorodne napraveIdentification cards and related devicesICS:Ta slovenski standard je istoveten z:EN 27811-2:1989SIST EN 27811-2:1998en01-junij-1998SIST EN 27811-2:1998SLOVENSKI
STANDARD
SIST EN 27811-2:1998
SIST EN 27811-2:1998
SIST EN 27811-2:1998
International Standard INTERNATIONAL ORGANIZATION FOR STANDARDlZATION*MEKAYHAPOAHAR OPiAHH3AUHR fl0 CTAHAAPTM3AUHH*ORGANlSATlON INTERNATIONALE DE NORMALISATION Identification cards - Recording technique - Part 2: Magnetic stripe Cartes d'identification - Technique d'enregistrement - Partie 2: Magnétique First edition - 1985-12-15 UDC 681.178.5: 681.327.65 Ref. No. IS0 7811/2-1985 (E) Descriptors : information interchange, data recording, identity cards, magnetic cards, magnetic recording, coded character sets, characteristics. Price based on 8 pages SIST EN 27811-2:1998
Foreword IS0 (the International Organization for Standardization) is a worldwide federation of national standards bodies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, govern- mental 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. They are approved in accordance with IS0 procedures requiring at least 75 % approval by the member bodies voting. International Standard IS0 781 1 /2 was prepared by Technical Committee ISO/TC 97, Information processing systems. The following International Standards cancel and replace IS0 2894 and IS0 3554, of which they constitute a technical revision: IS0 7810, IS0 781 1 /1, IS0 781 1 /2, IS0 781 1 /3, IS0 781 1 /4, IS0 781 1 /5, IS0 7812, IS0 7813. Users should note that all International Standards undergo revision from time to time and that any reference made herein to any other International Standard implies its latest edition, unless otherwise stated. 1 O International Organization for Standardization, 1985 O Printed in Switzerland O SIST EN 27811-2:1998
INTERNATIONAL STANDARD IS0 7811/2-1985 (E) Identification cards - Recording technique - Part 2: Magnetic stripe O Introduction This International Standard is one of a series of standards describing the parameters for identification cards as defined in clause 3 below and the use of such cards for international inter- change. 1 Scope and field of application This part of IS0 7811 specifies characteristics for a magnetic stripe (including any protective overlay) on an identification card, the encoding technique and coded character sets. The magnetic recordings are intended for machine reading. 2 References IS0 7810, identification cards - Physical characteristics. IS0 781 1, identification cards - Recording technique - I and 2. - Part 4: Location of read-only magnetic tracks - Tracks Part 5: Location of read-write magnetic track - Track3. 3 Definitions For the purpose of this part of IS0 781 1, the definition of ”iden- tification card” given in IS0 7810 and the following definitions apply. 3.1 primary standard: The NBS Master Standard Magnetic Tape (computer amplitude reference) kept in repository at the United States National Bureau of Standards (NBS). NOTE - The relationship (correction factor) between the Master Stan- dard and reference tape SRM 3200 is given by the NBS certificate sup- plied with the tape. 3.2 reference cardl): A reference card, which shall be con- sidered a secondary standard, comprises an ID card with a magnetic stripe consisting of secondary standard magnetic tape (computer amplitude reference) SRM 3200. NOTE - The secondary reference card should be corrected to the master standard first using the correction factor provided by the sup- plier. Then the location of the window is calculated (see figure 5). 3.3 flux transition: The location of the maximum of the magnitude of the magnetic flux component normal to the sur- face of the magnetic stripe. 3.4 reference current (IR) : The minimum recording current amplitude (square wave) which causes on the reference card, under the given test conditions, a readback voltage amplitude equal to 80 % of the maximum amplitude (see figure 5) at a density of 8 ftpmm (flux transitions per millimetre) I200 ftpi (flux transitions per inch)]. 3.5 (square wave) at 350% and 500 % of the reference current shall be used. test recording currents: Two test recording currents 3.6 average signal amplitude: The readback voltage, measured peak-to-peak, averaged over the total recording area of a card when recorded with the test recording current at the specified recording density. 3.7 reference signal amplitude: The maximum average signal amplitude of the reference card corrected to the master standard. 3.8 individual signal amplitude: The peak-to-peak amplitude of a single readback voltage signal. 3.9 test density: Densities of 8 ftpmm (200 ftpi) and 20 ftpmm (500 ftpi) which may be used for testing. NOTE - When testing with the reference card, densities of 6 ftpmm (150 ftpi) and 16,6 ftpmm (420 ftpi) may be used. The correlation fac- tors are: amplitudes 6 ftpmm (150 ftpi) amplitudes 8 ftpmm (200 ftpi) x 100 = 100 % __-___ amplitudes 16.6 ftpmm (420 ftpi) amplitudes 20 ftpmm (500 ftpii x 100 = 105 % __ 1) as long as available. These cards can be ordered from Physikalisch-Technische Bundesanstalt, Lab. 1.41 - Bundesallee 100, 0-3 300 Braunschweig, Germany, F.R. 1 SIST EN 27811-2:1998
IS0 7811/2-1985 (E) 4 Physical characteristics of the identification card The identification card shall conform to the specifications given in IS0 7810. I WARNING - The attention of card issuers is drawn to the fact that information held on the magnetic stripe may be rendered ineffective through contamination by con- tact with dirt and certain commonly used chemicals in- cluding plasticizers. Further, exposure of the card to an intense magnetic field is likely to destroy the recorded data. 5 Physical characteristics of the magnetic material 5.1 Thickness The height of the reading surface above the back surface of the card, when profiled with a stylus of between 0,38 mm (0.015 in) and 2,54 mm (0.100 in) radius, shall be O mm min. (O in min.) 0,038 mm max. (0.001 5 in max.) 3 It is necessary to have a defined method of measuring the surface profile in order to ensure uniformity. Methods of measurement are being evaluated and an agreed procedure will be added in this Inter- national Standard at the earliest opportunity. 5.4 Adhesion of stripe to card The stripe shall not separate from the card under normal use. 6 Performance characteristics of the magnetic material for newly manufactured identification cards 6.1 General This method uses a certified reference card whose magnetic 0 material is traceable to a primary standard magnetic tape. The test does not guarantee any minimum or maximum value of intrinsic coercivity Hci. The specification of this parameter (if required) is left to the individual card purchasers. In general, higher coercivities provide greater resistance to erasure at in- creased cost. 6.2 Track 1, 2 and 3 (read only or readlwritel 5.2 Surface roughness The average surface irregularity of the magnetic surface shall not exceed 0,404 pm (15.9 pin) CLA (centreline average) in both the longitudinal and transverse directions, when using a cut-off wavelength of 025 mrn (0.01 in) or 0,76 mrn (0.03 in) and a stylus of radius 2,s Hm max. (100 pin max.) 5.3 Surface profile The average profile of the minimum magnetic stripe width (see figures 1 and 2) when measured parallel to the height of the card with a probe having a radius of 0,38 mm (0.015 in) to 254 mm (0.100 in) shall not show a vertical deviation from a straight line connecting the minimum strip width of more than 3,8 prn (150 pin) for every 234 mm (0.100 in) of stripe width (see figure 3). During the measurement the back (magnetic stripe side) of the card shall be held parallel to the surface by means of a 2,2 N (0.51 Ibf) load evenly distributed over the back of the measure- ment area. NOTES 1 Spiking in the profile caused by material "squirt-out" in hot stamp- ing is not part of the stripe. It should not extend above the projected stripe surface (see figure 4). 2 Locating the magnetic material on top of printing is not recom- mended. When edge bleed (ink covering the overlay seal) is present, the card is more susceptible to fray and delamination problems. All measurements shall be made using the same device and under the same conditions. 6.2.1 Signal amplitude When the magnetic material with any protective coatings in place is recorded with the test recording currents (see 3.5) at 8 ftpmm (200 ftpi) the signal amplitude shall be within 80 % to 130 % of the reference signal amplitude (see figure 5). a The signal amplitude obtained at this density, after recording with a test recording current of 500 % I,, shall no1 exceed the signal amplitude obtained at the same density with a recording current of 350 % of I,. The slope of the saturation curve shall never be positive
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