1、raising standards worldwide NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BSI Standards Publication BS ISO/IEC 24724:2011 Information technology Automatic identification and data capture techniques GS1 DataBar bar code symbology specificationBS ISO/IEC 24724:2011 BRITISH STA
2、NDARD National foreword This 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 It supersedes BS ISO/IEC 24724:2006, which is withdrawn.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
3、o n a n 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 62
4、690 6 ICS 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 publication Date T e x t a f f e c t e dBS IS
5、O/IEC 24724:2011Reference number ISO/IEC 24724:2011(E) ISO/IEC 2011INTERNATIONAL STANDARD ISO/IEC 24724 Second edition 2011-04-01 Information technology Automatic identification and data capture techniques GS1 DataBar bar code symbology specification Technologies de linformation Techniques automatiq
6、ues didentification et de capture des donnes Spcifications de la symbologie des codes barres GS1 DataBar BS ISO/IEC 24724:2011 ISO/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 n
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11、Web www.iso.org Published in Switzerland ii ISO/IEC 2011 All rights reservedBS ISO/IEC 24724:2011 ISO/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
12、3.1 Terms and definitions .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 Om
13、nidirectional, GS1 DataBar 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.
14、2.4 Finder patterns 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.
15、2.2 Symbol character 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
16、.1 Overall symbol 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 L
17、inear symbology parameters .40 BS ISO/IEC 24724:2011 ISO/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-defin
18、ed parameters 41 Annex 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 sym
19、bols for GS1 emulation 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
20、 (informative) Minimizing 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
21、to prevent misreads 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 Pr
22、inting the separator pattern . 71 Annex J (informative) GS1 DataBar Symbology Summary of Characteristics 72 Bibliography. 73 BS ISO/IEC 24724:2011 ISO/IEC 24724:2011(E) ISO/IEC 2011 All rights reserved vForeword ISO (the International Organization for Standardization) and IEC (the International Elec
23、trotechnical Commission) 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
24、 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 collaborate in fields of mutual interest. Ot
25、her international 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 rul
26、es given in 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 app
27、roval by at 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 24724 was prepared by J
28、oint Technical Committee 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 24724:2011 ISO/IEC 24724:2011(E) v
29、i ISO/IEC 2011 All rights 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 va
30、riations (GS1 DataBar 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
31、(GS1 DataBar Expanded) 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-digi
32、t GS1 item identification (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
33、are not suitable for 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 supplem
34、entary application identifier 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
35、 symbol with an accompanying 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 code
36、s assigned to particular 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 trad
37、ing transactions. BS ISO/IEC 24724:2011 INTERNATIONAL 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
38、 for the GS1 DataBar 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-dimension
39、al component. 2 Normative 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,
40、 Information technology 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
41、 15417, Information technology 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 Au
42、tomatic identification 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, Infor
43、mation technology Automatic identification and data capture techniques GS1 Composite bar code symbology specification BS ISO/IEC 24724:2011 ISO/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 pur
44、poses of this document, 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 sup
45、plemental information 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 comm
46、only used AI element strings 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
47、 3.1.5 linear component 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
48、 of a bar code symbol, 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
49、of the number of times they have been decoded NOTE Voting is used for decoding GS1 DataBar by segments such as when used with omnidirectional scanning. BS ISO/IEC 24724:2011 ISO/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
