1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO/IEC 24724:2011Information technology Automatic identification and data capture techniques GS1 DataBar bar code symbology specificationBS ISO/IEC 24724:2011 BRITISH STANDAR
2、DNational forewordThis British Standard is the UK implementation of ISO/IEC 24724:2011. It supersedes BS ISO/IEC 24724:2006, which is withdrawn.The UK participation in its preparation was entrusted to T e c h n i c a l C o m m i t t e e I S T / 3 4 , A u t o m a t i c i d e n t i f i c a t i o n a n
3、 d data capture techniques.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. BSI 2011 ISBN 978 0 580 62690 6 ICS
4、 01.080.50; 35.040 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2011.Amendments issued since publicationDate T e x t a f f e c t e dBS ISO/IEC 24724:
5、2011Reference numberISO/IEC 24724:2011(E)ISO/IEC 2011INTERNATIONAL STANDARD ISO/IEC24724Second edition2011-04-01Information technology Automatic identification and data capture techniques GS1 DataBar bar code symbology specification Technologies de linformation Techniques automatiques didentificatio
6、n et de capture des donnes Spcifications de la symbologie des codes barres GS1 DataBar BS ISO/IEC 24724:2011ISO/IEC 24724:2011(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
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11、lished in Switzerland ii ISO/IEC 2011 All rights reservedBS ISO/IEC 24724:2011ISO/IEC 24724:2011(E) ISO/IEC 2011 All rights reserved iiiContents Page Foreword .v Introductionvi 1 Scope1 2 Normative references1 3 Terms, definitions, abbreviated terms and mathematical operators .2 3.1 Terms and defini
12、tions .2 3.2 Abbreviated terms.3 3.3 Mathematical operators and notational conventions 3 4 Symbol description .3 4.1 Types of GS1 DataBar symbol .3 4.2 Symbology characteristics.4 4.3 Summary of additional features.4 4.4 Symbol structure.5 5 Symbol requirements for GS1 DataBar Omnidirectional, GS1 D
13、ataBar Truncated, GS1 DataBar Stacked and GS1 DataBar Stacked Omnidirectional5 5.1 Basic characteristics of GS1 DataBar Omnidirectional 5 5.2 Symbol structure of GS1 DataBar Omnidirectional.6 5.2.1 Symbol character structure7 5.2.2 Symbol character value 7 5.2.3 Symbol value .8 5.2.4 Finder patterns
14、 10 5.2.5 Reference decode algorithm 11 5.3 Variations for specific applications.14 5.3.1 GS1 DataBar Truncated 14 5.3.2 Two-row variations14 6 Symbol requirements for GS1 DataBar Limited.15 6.1 Basic characteristics.15 6.2 Symbol structure.16 6.2.1 Symbol character structure17 6.2.2 Symbol characte
15、r value 17 6.2.3 Symbol value .18 6.2.4 Check character.19 6.2.5 Finder pattern 19 6.2.6 Reference decode algorithm 19 7 Symbol requirements for GS1 DataBar Expanded and GS1 DataBar Expanded Stacked.21 7.1 Basic characteristics of GS1 DataBar Expanded.21 7.2 Symbol structure.22 7.2.1 Overall symbol
16、structure 22 7.2.2 Symbol character structure23 7.2.3 Symbol character value 23 7.2.4 Symbol binary value24 7.2.5 Data encodation.25 7.2.6 Check character.34 7.2.7 Finder pattern 35 7.2.8 GS1 DataBar Expanded Stacked .37 7.2.9 Reference decode algorithm 38 8 Symbol quality.40 8.1 Linear symbology pa
17、rameters .40 BS ISO/IEC 24724:2011ISO/IEC 24724:2011(E) iv ISO/IEC 2011 All rights reserved8.2 Additional pass/fail criteria 40 8.3 Stacked symbols. 40 9 Transmitted data. 41 10 Human readable interpretation 41 11 Minimum and Maximum width of a module (X) . 41 12 Application-defined parameters 41 An
18、nex A (normative) Check digit calculation 42 Annex B (normative) C-language element width encoder and decoder. 43 Annex C (normative) GS1 DataBar Limited check character element widths . 47 Annex D (normative) Splitting long GS1 DataBar Expanded or GS1 DataBar Expanded Stacked symbols for GS1 emulat
19、ion mode. 50 Annex E (informative) Symbol elements. 51 Annex F (informative) Encoding examples 55 F.1 GS1 DataBar Omnidirectional and GS1 DataBar Truncated 55 F.2 GS1 DataBar Limited 57 F.3 GS1 DataBar Expanded 58 Annex G (informative) C-language element width decoder . 60 Annex H (informative) Mini
20、mizing misreads 63 H.1 General. 63 H.2 Voting. 64 H.3 Decoding by row. 64 H.4 Consistency checks . 64 H.5 GS1 DataBar Limited Decoding Considerations . 65 H.5.1 Original reference decode algorithm concerning guard bars 65 H.5.2 Potential to misread UPC-A symbols . 65 H.5.3 Methods to prevent misread
21、s of UPC-A symbols . 66 Annex I (informative) Printing considerations 69 I.1 Guard pattern considerations . 69 I.2 Pixel-based printing . 69 I.3 Guidance to users of pixel-based printing software. 70 I.4 Process control considerations 70 I.5 Separation of multiple symbols 71 I.6 Printing the separat
22、or pattern . 71 Annex J (informative) GS1 DataBar Symbology Summary of Characteristics 72 Bibliography. 73 BS ISO/IEC 24724:2011ISO/IEC 24724:2011(E) ISO/IEC 2011 All rights reserved vForeword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commis
23、sion) form the specialized system for worldwide standardization. National bodies that are members of ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are me
24、mbers 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 international o
25、rganizations, 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 in the ISO
26、/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 at least 7
27、5 % 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 24724 was prepared by Joint Technical Comm
28、ittee ISO/IEC JTC 1, Information technology, Subcommittee SC 31, Automatic identification and data capture techniques. This second edition cancels and replaces the first edition (ISO/IEC 24724:2006), which has been technically revised. BS ISO/IEC 24724:2011ISO/IEC 24724:2011(E) vi ISO/IEC 2011 All r
29、ights reservedIntroduction GS1 DataBar was formerly known as “Reduced Space Symbology (RSS)” and is renamed to align with the name of the GS1 organization. The GS1 DataBar family contains three types of linear symbologies to be used with the GS1 system. The first type has four variations (GS1 DataBa
30、r Omnidirectional, GS1 DataBar Truncated, GS1 DataBar Stacked and GS1 DataBar Stacked Omnidirectional). The stacked variations are two-row symbols. The second type comprises only one variation, namely GS1 DataBar Limited. The third type has two variations: a single row variation (GS1 DataBar Expande
31、d) and a multi-row stacked variation (GS1 DataBar Expanded Stacked). The use of GS1 DataBar is intended to comply with the GS1 application guidelines as defined in the GS1 General Specifications. GS1 DataBar Omnidirectional and GS1 DataBar Stacked Omnidirectional encode a 14-digit GS1 item identific
32、ation (often referred to as a Global Trade Item Number, or GTIN) in a linear symbol that can be scanned omnidirectionally by suitably programmed point-of-sale scanners. GS1 DataBar Truncated and GS1 DataBar Stacked encode a 14-digit GS1 item identification in a linear symbol and are not suitable for
33、 omnidirectional scanning. GS1 DataBar Limited encodes a 14-digit GS1 item identification with a leading digit of zero or one in a linear symbol for use on small items that will not be scanned at the point-of-sale. GS1 DataBar Expanded encodes GS1 item identification plus supplementary application i
34、dentifier element strings such as weight and “best before” date in a linear symbol that can be scanned omnidirectionally by suitably programmed point-of-sale scanners. Any member of the GS1 DataBar family can be printed as a stand-alone linear symbol or as part of a GS1 Composite symbol with an acco
35、mpanying two-dimensional component printed above the GS1 DataBar linear component. GS1 DataBar symbols are intended for encoding identification numbers and data supplementary to the identification. The administration of the numbering system by GS1 ensures that identification codes assigned to partic
36、ular items are unique worldwide and that they and the associated supplementary data are defined in a consistent way. The major benefit for the users of the GS1 system is the availability of uniquely defined identification codes and supplementary data formats for use in their trading transactions. BS
37、 ISO/IEC 24724:2011INTERNATIONAL STANDARD ISO/IEC 24724:2011(E) ISO/IEC 2011 All rights reserved 1Information technology Automatic identification and data capture techniques GS1 DataBar bar code symbology specification 1 Scope This International Standard defines the requirements for the GS1 DataBar
38、symbology family. It specifies the characteristics of the GS1 DataBar symbology family, data character encodation, symbol formats, dimensions, print quality requirements, error detection, and decoding algorithms. For GS1 Composite symbols, ISO/IEC 24723 defines the two-dimensional component. 2 Norma
39、tive references 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/IEC 646, Information technolo
40、gy ISO 7-bit coded character set for information interchange ISO 4217, Codes for the representation of currencies and funds ISO/IEC 15416, Information technology Automatic identification and data capture techniques Bar code print quality test specification Linear symbols ISO/IEC 15417, Information t
41、echnology Automatic identification and data capture techniques Code 128 bar code symbology specification ISO/IEC 15420, Information technology Automatic identification and data capture techniques EAN/UPC bar code symbology specification ISO/IEC 19762-1, Information technology Automatic identificatio
42、n and data capture (AIDC) techniques Harmonized vocabulary Part 1: General terms relating to AIDC ISO/IEC 19762-2, Information technology Automatic identification and data capture (AIDC) techniques Harmonized vocabulary Part 2: Optically readable media (ORM) ISO/IEC 24723, Information technology Aut
43、omatic identification and data capture techniques GS1 Composite bar code symbology specification BS ISO/IEC 24724:2011ISO/IEC 24724:2011(E) 2 ISO/IEC 2011 All rights reserved3 Terms, definitions, abbreviated terms and mathematical operators 3.1 Terms and definitions For the purposes of this document
44、, the terms and definitions given in ISO/IEC 19762-1, ISO/IEC 19762-2 and the following apply. NOTE For terms which are defined below and in ISO/IEC 19762, the definitions given below apply. 3.1.1 2D component two-dimensional portion of a GS1 Composite symbol, which encodes supplemental information
45、about an item, such as its lot number or expiration date 3.1.2 AI element string character string containing an application identifier followed by its associated data field 3.1.3 encodation methods compaction schemes used by GS1 DataBar Expanded and 2D components to encode commonly used AI element s
46、trings in binary strings that are shorter than would be required using general data compaction for the symbology 3.1.4 indicator digit leading digit of a GTIN-14 item identification number used to differentiate multiple levels of packaging or to indicate a variable measure item 3.1.5 linear componen
47、t linear portion of a GS1 Composite symbol, which encodes the primary identification of an item 3.1.6 linkage flag indicator encoded in a GS1 DataBar or GS1-128 linear component to signal if a 2D component accompanies the linear component 3.1.7 segment minimum decodable portion of a bar code symbol,
48、 consisting, in GS1 DataBar, of a symbol character and its adjacent finder pattern 3.1.8 GS1-128 subset, specified in GS1 General Specifications, of Code 128 as defined in ISO/IEC 15417 3.1.9 voting decoding technique whereby decoded segment values are saved along with a count of the number of times
49、 they have been decoded NOTE Voting is used for decoding GS1 DataBar by segments such as when used with omnidirectional scanning. BS ISO/IEC 24724:2011ISO/IEC 24724:2011(E) ISO/IEC 2011 All rights reserved 33.2 Abbreviated terms AI Application Identifier (see ISO/IEC 15418) 2D two-dimensional 3.3 Mathematical operators and notational conventions For the purposes of this document, the following mathematical operators apply. div integer division operator which discards the remainder mod int
