BS EN ISO IEC 15416-2002 Information technology - Automatic identification and data capture techniques - Bar code print quality test specification - Linear symbols《信息技术 自动识别和数据获取技术.pdf

1、BRITISH STANDARD BS EN ISO/IEC 15416:2002 Incorporating Corrigendum No. 1 Information technology Automatic identification and data capture techniques Bar code print quality test specification Linear symbols The European Standard EN ISO/IEC 15416:2001 has the status of a British Standard ICS 35.040;

2、01.080.50 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS EN ISO/IEC 15416:2002 This British Standard, having been prepared under the direction of the DISC Board, was published under the authority of the Standards Policy and Strategy Committee on 15 March 2002 BSI 19 April 2

3、002 ISBN 0 580 39107 8 National foreword This British Standard is the official English language version of EN ISO/IEC 15416:2001. It is identical with ISO/IEC 15416:2000. It supersedes BS EN 1635:1998 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee IS

4、T/34, Automatic identification and data capture techniques, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in

5、 this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract.

6、Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretatio

7、n, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN ISO/IEC title page, the EN ISO/IEC foreword page, the ISO/IEC t

8、itle page, pages ii to vi, pages 1 to 34, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments 13861 Corr. No. 1 19 April 2002 EN ISO/IEC title page and forewor

9、d correctedEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM ENISO/IEC15416 December2001 ICS01.080.50;35.040 SupersedesEN1635:1997 Englishversion InformationtechnologyAutomaticidentificationanddata capturetechniquesBarcodeprintqualitytestspecification Linearsymbols(ISO/IEC15416:2000) Technologiesdelinf

10、ormationTechniquesdidentification automatiqueetdecapturedesdonnesSpcifications pouressaidequalitdimpressiondescodesbarres Symboleslinaires(ISO/IEC15416:2000) InformationstechnikVerfahrenderautomatischen IdentifikationundDatenerfassungTestspezifikationenfr Strichcodedruckqualitt,LineareSymbole(ISO/IE

11、C 15416:2000) ThisEuropeanStandardwasapprovedbyCENon20October2001. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnationa

12、l standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe

13、official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EURO

14、PISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2001CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.ENISO/IEC15416:2001EINESOEI/51C:614002(1E) 2 CORRECTED20020327 Foreword ThetextoftheInternationalStandardfromTechnicalCommitteeI

15、SO/IEC/JTC1“Information technology“oftheInternationalOrganizationforStandardization(ISO)hasbeentakenoverasa EuropeanStandardbyTechnicalCommitteeCEN/TC225“Barcoding“,thesecretariatofwhich isheldbyNEN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationof anidenticaltextor

16、byendorsement,atthelatestbyJune2002,andconflictingnational standardsshallbewithdrawnatthelatestbyJune2002. ThisdocumentsupersedesEN1635:1997. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsof thefollowingcountriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,

17、Czech Republic,Denmark,Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg, Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandtheUnitedKingdom. Endorsementnotice ThetextoftheInternationalStandardISO/IEC15416:2000hasbeenapprovedbyCENasa EuropeanStandardwithoutanymodifications. 2egaP E

18、NISO/IEC15416:2001Reference number ISO/IEC 15416:2000(E) INTERNATIONAL STANDARD ISO/IEC 15416 First edition 2000-08-15 Information technology Automatic identification and data capture techniques Bar code print quality test specification Linear symbols Technologies de linformation Techniques didentif

19、ication automatique et de capture des donnes Spcifications pour essai de qualit dimpression des codes barres Symboles linaires ENISO/IEC15416:2001ii ENISO/IEC15416:2001IS/OIEC :614510002(E)iii Contents Page Foreword.vi Introduction.vii 1 Scope 1 2 Normative references 1 3 Terms and definitions .1 4

20、Symbols and abbreviated terms 3 4.1 Abbreviations.3 4.2 Symbols 3 5 Measurement methodology4 5.1 General requirements4 5.2 Reference reflectivity measurements5 5.2.1 Measurement wavelength(s).5 5.2.2 Measuring aperture5 5.2.3 Optical geometry6 5.2.4 Inspection band .7 5.2.5 Number of scans7 5.3 Scan

21、 reflectance profile 7 5.4 Scan reflectance profile assessment parameters8 5.4.1 Element determination 9 5.4.2 Edge determination .9 5.4.3 Decode 10 5.4.4 Symbol contrast (SC) 10 5.4.5 Minimum reflectance (R min )10 5.4.6 Edge contrast (EC).10 5.4.7 Modulation (MOD)10 5.4.8 Defects 10 5.4.9 Decodabi

22、lity10 5.4.10 Quiet zone check .11 6 Symbol grading12 6.1 Scan reflectance profile grading12 6.1.1 Decode 12 6.1.2 Reflectance parameter grading12 6.1.3 Decodability13 6.2 Expression of symbol grade.13 7 Substrate characteristics13 Annex A (normative) Decodability.14 A.1 Two-width symbologies 14 A.2

23、 Edge to similar edge decodable symbologies (n, k) symbologies) 14 Annex B (normative) Example of symbol quality grading 16 B.1 Individual scan reflectance profile grading 16 B.2 Overall symbol grade 17 Annex C (informative) Symbol grading flowchart18 Annex D (informative) Substrate characteristics.

24、19 D.1 Substrate opacity.19 D.2 Gloss .19 D.3 Over-laminate.19 ENISO/IEC15416:2001IS/OIEC :614510002(E) iv D.4 Static reflectance measurements.19 D.4.1 Prediction of Symbol Contrast (SC).20 D.4.2 Prediction of Minimum Edge Contrast (EC min ) and Modulation (MOD) .20 D.4.3 Acceptability of measured a

25、nd derived values.22 Annex E (informative) Interpretation of the scan reflectance profile and profile grades.23 E.1 Significance of scan reflectance profiles23 E.2 Interpretation of results.23 E.3 Matching grades to applications24 E.4 Alphabetic grading 25 Annex F (informative) Guidance on selection

26、 of light wavelength 26 F.1 Light sources26 F.2 Effect of variations in wavelength27 Annex G (informative) Guidance on number of scans per symbol28 Annex H (informative) Example of verification report .29 Annex I (informative) Comparison with traditional methodologies .30 I.1 Traditional methodologi

27、es30 I.2 Correlation of Print Contrast Signal with symbol contrast measurements.30 I.3 Guidance on grading for applications also specifying PCS .31 Annex J (informative) Process control requirements32 J.1 Process control for repetitive printing 32 J.2 Number of scans32 J.3 Bar width deviation33 J.3.

28、1 Two-width symbologies 33 J.3.2 (n, k) symbologies .33 J.3.3 Average bar width gain/loss .33 Bibliography 34 ENISO/IEC15416:2001IS/OIEC :614510002(E)v Foreword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized syste

29、m for worldwide standardization. National bodies that 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 col

30、laborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. In the field of information

31、technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1. Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as an International Standard requires approval by at least 75 % of the national bodies

32、 casting a vote. Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights. International Standard ISO/IEC 15416 was prepared by Joint Tec

33、hnical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 31, Automatic identification and data capture techniques. Annexes A and B form a normative part of this International Standard. Annexes C to J are for information only. ENISO/IEC15416:2001IS/OIEC :614510002(E) vi Introduction Th

34、e technology of bar coding is based on the recognition of patterns encoded in bars and spaces of defined dimensions according to rules defining the translation of characters into such patterns, known as the symbology specification. The bar code symbol must be produced in such a way as to be reliably

35、 decoded at the point of use, if it is to fulfil its basic objective as a machine readable data carrier. Manufacturers of bar code equipment and the producers and users of bar code symbols therefore require publicly available standard test specifications for the objective assessment of the quality o

36、f bar code symbols, to which they can refer when developing equipment and application standards or determining the quality of the symbols. Such test specifications form the basis for the development of measuring equipment for process control and quality assurance purposes during symbol production as

37、 well as afterwards. The performance of measuring equipment is the subject of a separate International Standard, ISO/IEC 15426. This International Standard is intended to be substantially equivalent in technical content to EN 1635 and ANSI standards X3.182 - 1990 and ANSI/UCC5 on which it has been b

38、ased. It should be read in conjunction with the symbology specification applicable to the bar code symbol being tested, which provides symbology-specific detail necessary for its application. There are currently many methods of assessing bar code quality at different stages of symbol production. The

39、 methodology provided in this specification is not intended as a replacement for any current process control methods but gives essential additional quality information. This methodology provides a basis for grading the quality of bar code symbols in relation to their expected performance when read a

40、nd therefore gives symbol producers and their trading partners a universally standardized means for communicating about the quality of bar code symbols after they have been printed. It also provides symbol producers with information enabling them to adjust their production process. Alternative metho

41、ds of quality assessment may be agreed between parties or as part of an application specification. ENISO/IEC15416:2001INTENRATIONAL TSANDADR IS/OIEC :614510002(E) ISO/IEC 0002 All rithgs resdevre 1 Information technology Automatic identification and data capture techniques Bar code print quality tes

42、t specification Linear symbols 1 Scope This International Standard specifies the methodology for the measurement of specific attributes of bar code symbols; defines a method for evaluating these measurements and deriving an overall assessment of symbol quality; gives information on possible causes o

43、f deviation from optimum grades to assist users in taking appropriate corrective action. This International Standard applies to those symbologies for which a reference decode algorithm has been defined, and which are intended to be read using linear scanning methods, but its methodology can be appli

44、ed partially or wholly to other symbologies. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these publicat

45、ions do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to appli

46、es. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 7724-2:1984, Paints and varnishes Colorimetry Part 2: Colour measurement. EN 1556:1998, Bar coding Terminology. 3 Terms and definitions For the purposes of this International Standard, the terms and definit

47、ions given in EN 1556 and the following apply. 3.1 bar A dark element corresponding to a region of a scan reflectance profile below the global threshold. 3.2 bar reflectance The lowest reflectance value of an individual bar element in the scan reflectance profile of that element. ENISO/IEC15416:2001

48、1IS/OIEC :614510002(E) 2 ISO/IEC 0002 All rithgs resdevre 3.3 decodability The proportion of the available margin (between the ideal dimension of an element or combination of elements and the relevant reference threshold) that has not been consumed by the element or combination of elements, calculated for the element or combination of elements deviating most from its ideal dimension. 3.4 decode Determinat