ISO 28219:2017

INTERNATIONAL ISO
STANDARD 28219
Second edition
2017-09
Packaging — Labelling and direct
product marking with linear bar code
and two-dimensional symbols
Emballage — Étiquetage et marquage direct sur le produit avec un
code à barres et des symboles bidimensionnels
Reference number
©
ISO 2017
© ISO 2017, Published in Switzerland
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ii © ISO 2017 – All rights reserved

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 2
3 Terms and definitions . 3
4 Requirements . 4
4.1 Identification . 4
4.1.1 General. 4
4.1.2 Unique item identification . 5
4.1.3 Lot or batch identification . 5
4.2 Data format common requirements . 5
4.2.1 General. 5
4.2.2 General format . 5
4.2.3 Mandatory data fields . 6
4.2.4 Optional data fields .11
4.2.5 Syntax .13
4.3 General layout and location .14
4.3.1 Layout .14
4.3.2 Location .14
4.3.3 Linear bar code titles .14
4.3.4 Human-readable interpretation .14
4.4 Symbol requirements .15
4.4.1 Symbology recommendations .15
4.4.2 Linear bar code symbol requirements .15
4.4.3 Two-dimensional symbol requirements .17
4.4.4 Composite symbol requirements .23
4.5 Adhesive requirements .25
Annex A (informative) Label adhesive characteristics and mark durability .26
Annex B (informative) Partial list of commonly used identifiers .34
Annex C (informative) Subset of ISO/IEC 646 (table of hexadecimal and decimal values) .36
Annex D (informative) User guidance for implementation of the ISO/IEC 15434 data syntax .38
Annex E (informative) For applications using Code 39 and Code 128 symbologies .39 ®
Annex F (informative) Using DUNS , with ASC MH10 Data Identifiers (DIs) in linear bar
code and two-dimensional symbols .43
Annex G (informative) Register of issuing agency codes (IACs) for ISO/IEC 15459 .45
Annex H (informative) Serialization of some electronics products .46
Annex I (informative) MOD 36 interior service number “check character” calculation .52
Bibliography .54
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO 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, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following
URL: www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 122, Packaging.
This second edition cancels and replaces the first edition (ISO 28219:2009), which has been technically
revised.
iv © ISO 2017 – All rights reserved

Introduction
Today, global industries widely use machine-readable markings on products for inventory control,
quality control, and product life cycle management. Common technologies, data structures,
conformance, and applications standards are necessary to enable all trading partners to use such
markings internally and throughout the supply chain.
A number of different product labelling and marking standards exist, each designed to meet the
requirements of the specific industry sector. For effective and economic use within and between
industry sectors, one common multi-industry standard is a necessity.
A standard linear bar code or two-dimensional symbol marked on a product or part will facilitate the
automation of inventory control, quality control, and product life cycle management. The linear bar code
or two-dimensional symbol information on the product can be used as a key to access the appropriate
database that contains detailed information about the product, including information transmitted via
EDI. In addition, a product mark can contain other information as agreed between the trading partners.
This document does not supersede or replace any applicable safety or regulatory marking or labelling
requirements. This document is meant to satisfy the minimum product package requirements of
numerous applications and industry groups. As such, its applicability is to a wide range of industries,
each of which can have specific implementation guidelines for this document. This document is intended
to be applied in addition to any other mandated labelling requirements.
This document supersedes and replaces ANS MH10.8.7.
This document supersedes and replaces CEA-802.
This document supersedes and replaces CEA-621-A.
INTERNATIONAL STANDARD ISO 28219:2017(E)
Packaging — Labelling and direct product marking with
linear bar code and two-dimensional symbols
1 Scope
This document
— defines minimum requirements for identifying items,
— provides guidelines for item marking with machine-readable symbols,
— covers both labels and direct marking of items,
— includes testing procedures for label adhesive characteristics and mark durability,
— provides guidance for the formatting on the label of data presented in linear bar code, two-
dimensional symbol or human-readable form,
— is intended for applications which include, but are not limited to, support of systems that automate
the control of items during the processes of:
— production,
— inventory,
— distribution,
— field service,
— point of sale,
— point of care,
— repair, and
— is intended to include, but it is not limited to, multiple industries including:
— automotive,
— aerospace,
— chemical,
— consumer items,
— electronics,
— health care,
— marine,
— rail,
— telecommunications.
The location and application method of the marking are not defined (these will be reviewed and agreed
upon by suppliers and manufacturers and their trading partners before implementing this document).
This document does not supersede or replace any applicable safety or regulatory marking or labelling
requirements. This document is meant to satisfy the minimum item marking requirements of numerous
applications and industry groups and as such its applicability is to a wide range of industries, each of
which may have specific implementation guidelines for it. This document is to be applied in addition to
any other mandated labelling direct-marking requirements.
The labelling and direct marking requirement of this document and other standards can be combined
into one label or marking area or appear as separate labels or marking areas.
This document uses the terms “part marking” and “item marking” interchangeably. Unless otherwise
stated, this document will use the term “item marking” to describe both the labelling and direct part
marking (DPM) of an item, where DPM includes, but is not limited to, altering (e.g. dot peen, laser etch,
chemical etch), as well as additive type processes (e.g. ink jet, vacuum deposition).
The purpose of this document is to establish the machine-readable (linear, two-dimensional, and
composite symbols) and human-readable content for direct marking and labelling of items, parts, and
components.
This document provides a means for items, parts and components to be marked, and read in either
fixtured or hand-held scanning environments at any manufacturer’s facility and then read by customers
purchasing items for subsequent manufacturing operations or for final end use. Intended applications
include, but are not limited to, supply chain applications, e.g. inventory, distribution, manufacturing,
quality control, acquisition, transportation, supply, repair, and disposal.
The figures are illustrative and not necessarily to scale or to the quality requirements specified in this
document.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 21067, Packaging — Vocabulary
ISO/IEC 646, Information technology — ISO 7-bit coded character set for information interchange
ISO 3166-1, Codes for the representation of names of countries and their subdivisions — Part 1: Country codes
ISO/IEC 15415, Information technology — Automatic identification and data capture techniques — Bar
code symbol print quality test specification — Two-dimensional symbols
ISO/IEC 15416, Automatic identification and data capture techniques — Bar code print quality test
specification — Linear symbols
ISO/IEC 15417, Information technology — Automatic identification and data capture techniques — Code
128 bar code symbology specification
ISO/IEC 15434, Information technology — Automatic identification and data capture techniques — Syntax
for high-capacity ADC media
ISO/IEC 15438, Information technology — Automatic identification and data capture techniques — PDF417
bar code symbology specification
ISO/IEC 15459-2, Information technology — Automatic identification and data capture techniques —
Unique identification — Part 2: Registration procedures
ISO/IEC 16022, Information technology — Automatic identification and data capture techniques — Data
Matrix bar code symbology specification
2 © ISO 2017 – All rights reserved

ISO/IEC 16388, Information technology — Automatic identification and data capture techniques — Code
39 bar code symbology specification
ISO/IEC 18004, Information technology — Automatic identification and data capture techniques — QR
Code bar code symbology specification
ISO/IEC 19762, Information technology — Automatic identification and data capture (AIDC) techniques —
Harmonized vocabulary
ISO/IEC 24723, Information technology — Automatic identification and data capture techniques — GS1
Composite bar code symbology specification
ISO/IEC 24728, Information technology — Automatic identification and data capture techniques —
MicroPDF417 bar code symbology specification
ANS ATIS-0300213, American National Standard for Telecommunication — Coded Identification of
Equipment Entities of the North American Telecommunications System for Information Exchange
ANS MH10.8.2, Data Application Identifier Standard
1)
Dun & Bradstreet (D&B), DUNS® Number
GS1, General Specifications
NAMSA, ACodP-1(D), Chapter 2, Subsection 242-243, (NCAGE)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO/IEC 19762 and ISO 21067 and
the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
3.1
cell
smallest element of a two-dimensional matrix symbol
3.2
2)
TM
CLEI code
coding structure maintained by Telcordia d.b.a. iconectiv that identifies communications equipment
and describes product type, features, source document and associated drawings and vintages per
ANS ATIS-0300213
3.3
components
parts (bare printed circuit board, integrated circuits, capacitor, diodes, switch, valve, spring, bearing,
bracket, bolt, etc.) of a first level/modular assembly (3.6)
3.4
data element separator
specified character used to delimit discrete fields of data
1) DUNS® Number is an example of a suitable product available commercially. This information is given for the
convenience of users of this document and does not constitute an endorsement by ISO of this product.
TM
2) CLEI coder is an example of a suitable product available commercially. This information is given for the
convenience of users of this document and does not constitute an endorsement by ISO of this product.
3.5
3)
DUNS® Number
nine-digit number, issued by D&B, assigned to each business location in the D&B database, having a
unique, separate, and distinct operation for the purpose of identifying them
3.6
first level
modular assembly
manufactured item (3.8) (populated printed circuit board, hydraulic pump, starter, dashboard
assembly, door assembly, etc.) made up of components (3.3)
3.7
Global Trade Item Number
GTIN
GS1 identification key used to identify trade items
Note 1 to entry: The key comprises a GS1 Company Prefix, an item reference and a check digit.
3.8
item
product
first level or higher assembly that is sold in a complete end-usable configuration
3.9
label
adhesive backed media capable of being marked with information in machine-readable and/or human-
readable form
Note 1 to entry: Both labels and direct marking methods are referred to in this document under the term “label”.
3.10
manufacturer
actual producer or fabricator of an item (3.8), not necessarily the supplier (3.11) in a transaction
3.11
supplier
party that produces, provides, or furnishes an item (3.8) or service
3.12
traceability identification
string of characters assigned to identify or trace an entity or a unique group of entities (e.g. lot, batch,
item (3.8), revision/version or serial number)
4 Requirements
4.1 Identification
4.1.1 General
Enterprises may choose to assign uniqueness to items at the individual, group, or product level.
Individual uniqueness requires serialization or one-of-a-kind production, see 4.1.2 and 4.2.3.3. A lot or
batch number captures group uniqueness, see 4.1.3 and 4.2.3.3. A product code is an example of item
uniqueness, see 4.2.3.4.
3) DUNS® Number is an example of a suitable product available commercially. This information is given for the
convenience of users of this document and does not constitute an endorsement by ISO of this product.
4 © ISO 2017 – All rights reserved

4.1.2 Unique item identification
Items may be assigned a unique item identification code to each instance of the item, i.e. serialization.
Serial numbers shall be unique either within an enterprise ID or within enterprise ID + part number.
When using unique identification, the encoded symbol shall contain only one enterprise identifier,
serial number and/or original part number to avoid confusion and ensure uniqueness.
4.1.3 Lot or batch identification
Items can have group uniqueness applied by an enterprise. Some items are assigned group identification,
e.g. lot or batch number.
4.2 Data format common requirements
4.2.1 General
Those implementing this document should refer to the guidelines for their particular industries. For a
partial list of industry guidelines, see the Bibliography.
4.2.2 General format
4.2.2.1 Overview
Labels will accommodate both mandatory and optional data fields. The maximum length of each
discrete data field shall be 25 data characters unless otherwise specified. This character count is
exclusive of overhead characters.
See Annex H for information on serialization of some electronic products.
All data elements encoded in a machine-readable medium shall be preceded by the appropriate Data
Identifier (DI) as defined in ANS MH10.8.2 Data Identifier, or the appropriate Application Identifier (AI)
defined in the GS1 General Specifications. The exceptions to this rule are the UPC-A, UPC-E, EAN-8, and
EAN-13 symbologies.
The choice between DIs and GS1 AIs, for any user, will normally be determined in the applicable industry
convention being followed.
Other industries developing item identification conventions should consider business practices,
information requirements and systems capabilities of the trading partners in choosing between DIs
and GS1 AIs. See Annex B for a list of commonly used DIs and the equivalent AIs.
The character set shall be upper case alphabetic characters (A to Z), numeric digits (0 to 9), and
the five characters [dash (–), period (.), space ( ), solidus (/) and plus sign (+)], as permitted within
the applicable identifier standard, ANSI MH10.8.2 or the GS1 General Specification. Further, the
recommended field separators, record separators, segment terminators and compliance indicator
contained in ISO/IEC 15434 are part of the allowable character set. A table of these characters and their
hexadecimal and decimal equivalent is given in Annex C. The actual character set employed conforming
to this document shall be the character set permitted by the data field and not the symbology. It is
recommended that the resultant data stream from scanning a 2D symbol follow the syntax described
in ISO/IEC 15434. See Annex D for guidance on the implementation of the ISO/IEC 15434 data syntax.
4.2.2.2 Data identifiers (DIs)
The descriptions in the DI list are general in nature and are used in industrial and international
applications. Specific application guidelines provide the detailed definition used among trading
partners.
The full list of registered DIs and the full specification for their use are found in the American National
Standard MH10.8.2.
DIs may be used with any alphanumeric data carrier and are designed to ensure cross-industry
commonality of Data Identifiers used in automatic identification technologies.
DIs have a format of one alphabetic character alone or one alphabetic character prefixed by one, two or
three numeric characters.
4.2.2.3 GS1 Application Identifiers (AIs)
The definitions of the GS1 AIs are supported by application guidelines. The GS1 AIs, and associated
guidelines, have been designed for international and multi-sector trading purposes.
The GS1 item identification system and related encoding standard are complemented by the GS1
maintained AIs. This document comprises two principal elements, which are the key to any encoding
system: the data content and the data carrier.
The use of GS1 AIs is subject to the rules established by GS1.
GS1 AIs identify generic and simple data fields for use in cross-sector and international supply chain
applications. The GS1 General Specifications provide rules for the definition, format and structure of
the data fields.
Each GS1 AI consists of two, three or four characters.
4.2.2.4 Organization inclusion in coding
It is recommended that data structures used to identify items or the traceability of items include
identification of the organization providing the coding, as well as the specific coding structure.
In the GS1 General Specifications, this coding structure is the GS1 Company Prefix portion of the global
trade item number (GTIN).
When telecommunications companies use the CLEI Code, the coding structure is specified in ANS ATIS-
0300213. The CLEI Code is always 10 characters and the structure is as follows: a basic code (four
alphanumeric characters) representing the technology or equipment type and consisting of a family
code (two alphanumeric characters), sub-family code (two alphanumeric characters), a features
code (three alphanumeric characters) to represent attributes of the equipment, reference code (one
alphanumeric character) to represent the manufacturer of the equipment within the basic code and
a complemental code (two alphanumeric characters) to identify vintage or version of the equipment.
When using DIs, this coding structure uses the issuing agency code (IAC) established in ISO/IEC 15459-
2 and the company identification number (CIN) assigned by the issuing agency.
See Annex G for information about the register of issuing agency codes (IACs) for ISO/IEC 15459.
4.2.3 Mandatory data fields
4.2.3.1 General
Mandatory data fields are given in Table 1.
6 © ISO 2017 – All rights reserved

Table 1 — Item identification code type
Item identification type Mandatory fields
1. Commodity Item identification code (example nails)
2. Non-traceable Enterprise identification code
Item identification code
3. Group traceability Enterprise identification code
Item identification code
Unique lot or batch traceability code
4. Unique serialization within item Enterprise identification code
identification code
Item identification code
Unique individual item identification code
5. Unique serialization within enterprise Enterprise identification code
Unique item traceability code within enterprise
identification code
The enterprise identification code and item identification code may be combined in a single data field,
see 4.2.3.4.
4.2.3.2 Enterprise identification code
The enterprise identification code shall use formats contained in Table 2 and Table 3. The use of
more than one enterprise identification code preceded by DI 20V is permitted on an item. The choice
of enterprise identification code(s) should be mutually agreed upon between trading partners. The
appropriate DI shall precede the enterprise identification when separate data fields are used to identify
the supplier and the item identification.
Table 2 — Data Identifiers used for enterprise identification
Data characteristics
Data Type followed by the
Data field Description
Identifier number of characters
a
(e.g. a#, n#, an#)
18V Combined IAC/CIN an3+an1.3+an3.13 Combined IAC/CIN
12V DUNS® Number an3+n9 Entity (manufacturer) identification
Identifying assigned by Dun and Bradstreet
Manufacturer
17V US Department of an3+an5 Company identification assigned by the US
Defence (DoD) CAGE Department of Defence
Code/NAMSA NCAGE
20V Company an3+an1.3+an3.13+“+”+an3 Combined IAC/CIN and Party Qualifier
identification Code (EDIFACT DE 3035)
21V Supplier an3 +an.25 Combined IAC/CIN followed by an
identification internally assigned entity identification
a
The characters before the first “+” symbol describe the format of the DI or AI. Note that the “+” symbols are not encoded
in the data except for “+” in 20V.
Table 3 — Application Identifiers used for enterprise identification
Data characteristics
Application Type followed by the
Data field Description
Identifier number of characters
a
(e.g. a#, n#, an#)
N/A Part number n12 UPC-A Symbology (combination of supplier
(supplier/item) and item identification)
UPC-A (GTIN-12)
N/A Part number n13 EAN-13 Symbology (combination of
(supplier/item) supplier and item identification)
EAN-13 (GTIN-13)
01 Part number n2+n14 GS1–128, GS1 Data Bar Expanded and GS1
(supplier/item and Data Matrix (combination of indicator digit,
quantity) GTIN-14 supplier and item identification)
a
The characters before the first “+” symbol describe the format of the DI or AI. Note that the “+” symbols are not encoded
in the data.
4.2.3.3 Group and item traceability identification
The traceability identification is assigned by the manufacturer or supplier. The DIs or AIs given
in Table 4 and Table 5 represent a partial list of the ASC MH10 Data Identifiers and GS1 Application
Identifiers that may be applicable to traceability identification.
The maximum length of a single traceability identification data field should not exceed 35 characters,
which excludes the associated DI or AI. The traceability identification data field shall not exceed 50
characters.
Table 4 — Data Identifiers used for traceability identification
Data characteristics
Data Type followed by the
Data field Description
Identifier number of characters
a
(e.g. a#, n#, an#)
S Serial number an1+an.20 Serial number or code assigned by the
supplier to an entity for its lifetime
18S Serial number an3+an.20 Serial number or code assigned by the
within CAGE Code CAGE Code that is unique within CAGE Code
20S Customer assigned an3+an.20 Serial number or code assigned by the
serial number customer to an entity for its lifetime
22S Cellular Mobile an3+an.25 Electronic Serial Number (ESN) for Cellular
Telephone (CMT) Mobile Telephones or the Mobile
Electronic Serial Equipment Identifier (MEID) or the
Number International Mobile Station Equipment
Identity (IMEI)
a
The characters before the first “+” symbol describe the format of the DI. Note that the “+” symbols are not encoded in
the data.
20S may be used by industries that are serializing items that were not serialized by the manufacturer at time of
manufacturing.
Asset identifiers shall not be used for any other purpose and shall remain unique for a period well beyond the lifetime of
relevant records. If a company assigns asset identifiers to trade items supplied to its customers, the company shall ensure
that the asset identifiers are never reused.
The length specified in the table may be shorter than the length specified in the reference standard; however, that is the
maximum length specified in this document.
NOTE 1  The variable lengths for the IAC/CIN combined lengths are defined by ISO 15459.
NOTE 2  See ESN Assignment Guidelines and Procedures and MOBILE EQUIPMENT IDENTIFIER (MEID) GHA (Global
Hexadecimal Administrator) Assignment Guidelines and Procedures for additional information on ESN and MEID.
8 © ISO 2017 – All rights reserved

Table 4 (continued)
Data characteristics
Data Type followed by the
Data field Description
Identifier number of characters
a
(e.g. a#, n#, an#)
25S Serial number an3 +IAC/CIN+an.20 Combined IAC/CIN and the serial number
assigned by the supplier
+$+ Serial number an3+an…18 HIBC Serial Number associated with HIBC
Lot/batch number (+$) option
1T Lot/batch number an2+an.20 Lot/Batch Number defined by the
manufacturer
25T Lot/batch number an3 +IAC/CIN+an.20 Combined IAC/CIN and enterprise
identification and lot or batch number
assigned by the supplier
+$ Lot/batch number a2+an.18 Options of concatenated lot or batch
combinations with item data are
specified with ANSI/HIBC 2
a
The characters before the first “+” symbol describe the format of the DI. Note that the “+” symbols are not encoded in
the data.
20S may be used by industries that are serializing items that were not serialized by the manufacturer at time of
manufacturing.
Asset identifiers shall not be used for any other purpose and shall remain unique for a period well beyond the lifetime of
relevant records. If a company assigns asset identifiers to trade items supplied to its customers, the company shall ensure
that the asset identifiers are never reused.
The length specified in the table may be shorter than the length specified in the reference standard; however, that is the
maximum length specified in this document.
NOTE 1  The variable lengths for the IAC/CIN combined lengths are defined by ISO 15459.
NOTE 2  See ESN Assignment Guidelines and Procedures and MOBILE EQUIPMENT IDENTIFIER (MEID) GHA (Global
Hexadecimal Administrator) Assignment Guidelines and Procedures for additional information on ESN and MEID.
Table 5 — Application Identifiers used for traceability identification
Data characteristics
Application Type followed by the
Data field Description
Identifier number of characters
a
(e.g. a#, n#, an#)
10 Batch/lot number n2+an.20 Traceability identification defined by the
manufacturer
b
11 Production date n2+n6 Production date (YYMMDD)
21 Serial number n2+an.20 Serial number or code assigned by the
supplier to an trade item for its lifetime
a
The characters before the first “+” symbol describe the format of the AI. Note that the “+” symbols are not encoded in
the data.
b
Production date code construction using GS1 Application Identifiers use a two-digit designation for year.
Asset identifiers shall not be used for any other purpose and shall remain unique for a period well beyond the lifetime of
relevant records. If a company assigns asset identifiers to trade items supplied to its customers, the company shall ensure
that the asset identifiers are never reused.
The length specified in the table may be shorter than the length specified in the reference standard; however, that is the
maximum length specified in this document.
Table 5 (continued)
Data characteristics
Application Type followed by the
Data field Description
Identifier number of characters
a
(e.g. a#, n#, an#)
414 Global location n3+n13 Global location number (GLN) to be
number processed according to the particular
application requirements
8003 Global returnable n4+n14+an.16 Global returnable asset identifier (GRAI)
asset identifier
8004 Global individual n4+an.30 Global individual asset identifier (GIAI)
asset identifier
a
The characters before the first “+” symbol describe the format of the AI. Note that the “+” symbols are not encoded in
the data.
b
Production date code construction using GS1 Application Identifiers use a two-digit designation for year.
Asset identifiers shall not be used for any other purpose and shall remain unique for a period well beyond the lifetime of
relevant records. If a company assigns asset identifiers to trade items supplied to its customers, the company shall ensure
that the asset identifiers are never reused.
The length specified in the table may be shorter than the length specified in the reference standard; however, that is the
maximum length specified in this document.
4.2.3.4 Item identification
The identity for individual products and product packages shall not contain more than 50 characters.
For efficient use within various AIDC data carrier systems, it is recommended that the number of
characters to be coded by one line linear bar code should not exceed 20 characters and number of
characters should be kept as short as possible regardless of the permissible maximum of 50 characters.
This maximum excludes the associated DI or AI. Item identification codes may be concatenated with the
enterprise identification to produce a unique item identification. See Tables 2 to 5 for IAC/CIN.
The item identification code (e.g. supplier or customer part number) shall be designated as mutually
agreed upon between the supplier or manufacturer and customer. The supplier’s part number is the
recommended item identification code.
An item identification code may be concatenated with the company prefix to produce a unique item
identification code. GTIN-12 and GTIN-13 formats are fixed length numeric examples of company prefix
codes concatenated with item identification codes to provide worldwide item identification uniqueness.
See Table 7.
Likewise, variable length examples of fixed length enterprise identification codes concatenated with
variable length alphanumeric item identification codes to provide worldwide item identification
uniqueness may be provided with DIs such as “9P” and “17P”. See Table 6.
Table 6 — Data Identifiers used for item identifier
Data characteristics
Data Type followed by the
Data field Description
Identifier number of characters
a
(e.g. a#, n#, an#)
P Part number an1+an.20 Customer assigned part number
1P Part number an2+an.20 Supplier assigned part number
8P Part number an2+n14 GS1 GTIN-14
9P Part number an2+n9+an.16 Combined DUNS-9 supplier identification
and item code assigned by the supplier
a
The characters before the first “+” symbol describe the format of the DI or AI. Note that the “+” symbols are not encoded
in the data.
10 © ISO 2017 – All rights reserved

Table 6 (continued)
Data characteristics
Data Type followed by the
Data field Description
Identifier number of characters
a
(e.g. a#, n#, an#)
TM
11P Part number an3+an10 CLEI code for telecommunications
equipment
17P Part number an3+ an8.27 Combined GS1 company prefix and item code
assigned by the supplier
25P Product number an3+IAC/CIN+an.20 Combined IAC/CIN and item code assigned
by the supplier
+ Product number a1+an.19 HIBCC
a
The characters before the first “+” symbol describe the format of the DI or AI. Note that the “+” symbols are not encoded
in the data.
Table 7 — GS1 item identifiers
Data characteristics
Application Type followed by the
Data field Description
Identifier number of characters
a
(e.g. a#, n#, an#)
N/A Part number (supplier/ n12 UPC-A/UPC-E Symbology (combination of
item) UPC-A/UPC-E supplier and item identification)
(GTIN-12)
N/A Part number (supplier/ n13 EAN-13 Symbology (combination of
item) supplier and item identification)
EAN-13 (GTIN-13)
01 Part number (supplier/ n2+n14 GS1–128, GS1 Data Bar Expanded and GS1
item and quantity) Data Matrix (combination of indicator digit,
(GTIN-14) supplier, and item identification)
241 Part number n3+an.30 Customer assigned part number
8001 Roll products n4+n14 Roll products - width, length, core
diameter, direction and splices
8006 Identification of the n4+n14+n2+n2 GS1 Identification of a fixed measure trade
components of a trade item (GTIN) packed in separate parcels.
item
8018 Global service relation n4+n18 GS1 identification number of a service
number (GSRN) relation (GSRN) to be assigned by the
service provider
a
The characters before the first “+” symbol describe the format of the DI or AI. Note that the “+” symbols are not encoded
in the data.
NOTE  While GS1 permits AI “241” to be a maximum of 30 characters, the customer assigned part number should be
limited to no more than 25 characters.
4.2.4 Optional data fields
Specific applications and trading partner agreements may require additional data fields. See Table 8
and Table 9 for examples.
When using DIs or AIs to encode country of origin, it shall be in one of the formats shown in Table 8 or
Table 9.
Table 8 — Data Identifiers for optional data
Data characteristics
Data Type followed by the
Data field Description
Identifier number of characters
a
(e.g. a#, n#, an#)
4L Country of origin an2+an2 The two-character country code as
defined by ISO 3166-1. The country of
origin is defined as the manufacturing
country wherein the product obtained its
present identity as a part, subassembly, or
finished product.
6D Defined date an2+n8+an3 ISO format YYYYMMDD immediately
followed by an ANSI X12.3 Data Element
Number 374 Qualifier providing a code
specifying type of date (e.g. ship date,
manufacture date)
11D Week an3+n6 Format YYYYWW
12D Date an3+n8 Format YYYYMMDD
14D Expiration date an3+n8 Expiration date (YYYYMMDD)
16D Production date an3+n8 Production date (YYYYMMDD)
30P First level additional an3+an…20 First level (supplier assigned) item
item identification identification (item ID), which is different
than or in addition to Item ID provided by
“1P”
a
The characters before the first “+” symbol describe the format of the DI or AI. Note that the “+” symbols are not encoded
in the data.
Table 9 — Application Identifiers for optional data
Data characteristics
Application Type followed by the
Data field Description
Identifier number of characters
a
(e.g. a#, n#, an#)
422 Country of origin n3+n3 The three-digit country code as defined by
ISO 3166-1. The country of origin is defined
as the manufacturing country wherein the
product obtained its present identity as a
part, subassembly, or finished product.
423 Country of initial n3+n.15 ISO country codes stating the countries
processing (with ISO of initial processing of a trade item. The
country code) n.15 code may be 3, 6, 9, 12, 15 characters
long depending on number of processing
countries.
424 Country of processing n3+n3 ISO country code stating the country of
(with ISO country processing of a trade item
code)
425 Country of n3+n3 ISO country code stating the country of
disassembly (with ISO disassembly of a trade item
country code)
426 Country covering full n3+n3 ISO country code stating the (single)
process chain (with country of full processing of a trade item
ISO country code)
17 Expiration date n2+n8
11 Production date n2+n8
a
The characters before the first “+” symbol describe the format of the DI or AI. Note that the “+” symbols are not encoded
in the data.
12 © ISO 2017 – All rights reserved

4.2.5 Syntax
4.2.5.1 Linear bar code symbol data field syntax
Data encoded in the EAN/UPC symbology includes no identifiers. A Data Identifier, as per ANS MH10.8.2,
shall precede data encoded in the Code 39 symbology, as described in ISO/IEC 16388. Data encoded
in GS1-128 symbology shall be formatted as defined in GS1 General Specification preceded by an
Application Identifier. Data encoded in Code 128, as described in ISO/IEC 15417, not using GS1
Application Identifiers shall be preceded by a Data Identifier per ANS MH10.8.2. Data encoded in UPC-A
symbology shall be in accordance with GS1 General Specification.
4.2.5.2 Concatenation of multiple data fields
When concatenating data in a linear bar code symbol, the total length should be limited to 32 data
characters, including the associated DIs and AIs and concatenation characters but not including
symbology overhead characters. If the length exceeds the 32-character maximum message length, two-
dimensional symbols should be used.
a) When concatenating data in a linear bar code message, the appropriate data element separator shall
be used in accorda
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