EN ISO 21007-2:2015

SLOVENSKI STANDARD
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SIST EN ISO 21007-2:2013
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Gas cylinders - Identification and marking using radio frequency identification technology
- Part 2: Numbering schemes for radio frequency identification (ISO 21007-2:2015)
Gasflaschen - Identifizierung und Kennzeichnung mittels
Hochfrequenzidentifizierungstechnologie - Teil 2: Nummerierungssysteme für die
Hochfrequenzidentifizierung (ISO 21007-2:2015)
Bouteilles à gaz - Identification et marquage à l'aide de la technologie d'identification par
radiofréquences - Partie 2: Schémas de numérotage pour identification par
radiofréquences (ISO 21007-2:2015)
Ta slovenski standard je istoveten z: EN ISO 21007-2:2015
ICS:
23.020.30 7ODþQHSRVRGHSOLQVNH Pressure vessels, gas
MHNOHQNH cylinders
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 21007-2
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2015
EUROPÄISCHE NORM
ICS 23.020.30 Supersedes EN ISO 21007-2:2013
English Version
Gas cylinders - Identification and marking using radio
frequency identification technology - Part 2: Numbering
schemes for radio frequency identification (ISO 21007-
2:2015)
Bouteilles à gaz - Identification et marquage à l'aide de Gasflaschen - Identifizierung und Kennzeichnung
la technologie d'identification par radiofréquences - mittels Hochfrequenzidentifizierungstechnologie - Teil
Partie 2: Schémas de numérotage pour identification 2: Nummerierungssysteme für die
par radiofréquences (ISO 21007-2:2015) Hochfrequenzidentifizierung (ISO 21007-2:2015)
This European Standard was approved by CEN on 1 April 2016.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 21007-2:2015 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 21007-2:2015) has been prepared by Technical Committee ISO/TC 58 "Gas
cylinders" in collaboration with Technical Committee CEN/TC 23 “Transportable gas cylinders” the
secretariat of which is held by BSI.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by June 2016, and conflicting national standards shall be
withdrawn at the latest by June 2016.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
This document supersedes EN ISO 21007-2:2013.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 21007-2:2015 has been approved by CEN as EN ISO 21007-2:2015 without any
modification.
INTERNATIONAL ISO
STANDARD 21007-2
Third edition
2015-12-15
Gas cylinders — Identification and
marking using radio frequency
identification technology —
Part 2:
Numbering schemes for radio
frequency identification
Bouteilles à gaz — Identification et marquage à l’aide de la
technologie d’identification par radiofréquences —
Partie 2: Schémas de numérotage pour identification par
radiofréquences
Reference number
ISO 21007-2:2015(E)
©
ISO 2015
ISO 21007-2:2015(E)
© ISO 2015, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
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CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2015 – All rights reserved

ISO 21007-2:2015(E)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and numerical notations . 1
3.1 Terms and definitions . 1
3.2 Numerical notations . 2
4 Data presentation . 3
4.1 General requirements . 3
4.2 ASN.1 messages . 3
4.3 Message identification requirements . 3
4.4 Predetermined context and the use of packed encoding rules . 4
4.5 Sample GC data structure constructs . 4
5 Gas cylinder identification structure (variable) . 4
5.1 General requirements . 4
5.2 Data structure construct . 5
5.2.1 General. 5
5.2.2 Data scheme identifier (DSI) . 5
5.2.3 Length. 5
5.2.4 Data field . 5
6 Gas cylinder identification data schemes (variable) . 5
6.1 General requirements . 5
6.2 Data scheme “01”: numbering (binary) . 6
6.2.1 General. 6
6.2.2 Issuer country code . 7
6.2.3 Registration body . 7
6.2.4 Issuer identifier . 7
6.2.5 Unique number . 7
6.2.6 Conclusion . 7
6.3 Data scheme “02”: numbering (ASCII) . 8
6.3.1 General. 8
6.3.2 Issuer country code . 8
6.3.3 Registration body . 8
6.3.4 Issuer identifier . 8
6.3.5 Unique string . 9
6.3.6 Conclusion . 9
6.4 Data scheme “10”: cylinder manufacturer information (optional) . 9
6.4.1 Overview . 9
6.4.2 General. 9
6.4.3 Manufacturer code . 9
6.4.4 Manufacturer serial number.10
6.5 Data scheme “11”: cylinder approval information (optional) .10
6.5.1 General.10
6.5.2 Country code .10
6.6 Data scheme “12”: cylinder package information (optional).10
6.6.1 General.10
6.6.2 Water capacity (l) .11
6.6.3 Working pressure (bar) .11
6.6.4 Test pressure (bar).11
6.6.5 Tare weight (kg) .12
6.6.6 Last test date .12
6.7 Data scheme “13”: cylinder content information (optional) .12
ISO 21007-2:2015(E)
6.7.1 General.12
6.7.2 Content code .12
6.7.3 Fill date .13
6.8 Data scheme “14”: commercial product information (optional) .13
6.8.1 General.13
6.8.2 Quantity .13
6.8.3 Quantity unit code .13
6.8.4 Product ID .13
6.9 Data scheme “15”: production lot information (optional) .14
6.9.1 General.14
6.9.2 Expiration date .14
6.9.3 Lot ID .14
6.10 Data scheme “16”: accessories information (optional) .14
6.11 Data scheme “20”: acetylene specifics (optional) .14
6.11.1 General.14
6.11.2 Porous mass characteristics .15
7 Gas cylinder identification structure (optimized storage size) .15
7.1 General .15
7.2 Data structure construct .15
7.2.1 General.15
7.2.2 DSI (fix) .16
7.2.3 Data item attribute .16
7.2.4 Remarks .16
8 Air interface specifications .16
8.1 Technical requirements .16
8.2 Downlink and uplink .16
8.3 Standard downlink/uplink parameters .17
9 Transponder memory addressing .17
9.1 General requirements .17
9.2 Modbus/JBUS implementation .18
Annex A (normative) Technical solution .19
Annex B (informative) List of codes for registration bodies .20
Annex C (informative) Gas quantity units code .21
Annex D (informative) Host to interrogator to Modbus communication protocol .22
Annex E (informative) Data scheme identifier (DSI) definition for fixed length format .27
Bibliography .41
iv © ISO 2015 – All rights reserved

ISO 21007-2:2015(E)
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 meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 58, Gas cylinders, Subcommittee SC 4,
Operational requirements for gas cylinders.
This third edition cancels and replaces the second edition (ISO 21007-2:2013), which has been
technically revised with the following changes:
— a new registration body has been added to Annex B;
— a new Annex E has been added;
— the former Annex C, which provided a list of RFID codes, as well as marks for gas cylinder
manufacturers, has been removed from this part of ISO 21007 and will be published in a separate
document, ISO/TR 17329.
ISO 21007 consists of the following parts, under the general title Gas cylinders — Identification and
marking using radio frequency identification technology:
— Part 1: Reference architecture and terminology
— Part 2: Numbering schemes for radio frequency identification
ISO 21007-2:2015(E)
Introduction
Cylinders can contain a wide variety of gases, and identification is of paramount importance. It
could be desirable to identify not only the type of gas or liquid contained in the GC, but also such
details as the filling station where the cylinder was filled, the batch of cylinders filled and the date
the cylinder was filled.
Various methods and technologies such as physical identification through indentation; paper, card,
metal and plastic labelling; colour code identification; bar coding and, in some circumstances, vision
systems are already used to make or assist such identifications.
The technology of radio frequency identification (RFID) involves a reader/interrogator station
that transmits a predetermined signal of inductive, radio or microwave energy to one or many
transponders located within a read zone. The transponder returns the signal in a modified form to the
reader/interrogator and the data are decoded. The data component in a portable gas or liquid cylinder
environment provides the basis for unambiguous identification of the transponder and also can
provide a medium for a bi-directional interactive exchange of data between the reader/interrogator
and transponder. The signal can be modulated or unmodulated according to architecture of the system.
Recently, RFID has started using new, higher frequencies called ultra high frequency (UHF). These
higher frequencies facilitate a faster reading and writing process and deliver longer reading/writing
distances. Therefore, the UHF band frequency has been included in this part of ISO 21007. The aim of
this part of ISO 21007 is to provide the data structure respectively suitable for all frequency bands
including UHF.
In many cases, it is necessary or desirable to use one air carrier frequency and protocol; however,
this will not always be the case. Within a global market, different applications could require different
solutions for the carrier frequency (e.g. reading distance and velocity) and protocols (e.g. security,
company rule).
However, there is benefit in using a standard common core data structure that is capable of upwards
integration and expandable from the simplest low-cost cylinder identification system to more complex
functions. Such a structure will have to be flexible and enabling rather than prescriptive, thus enabling
different systems degrees of interoperability within and between their host systems.
The use of Abstract Syntax Notation One (ASN.1, as defined in the ISO/IEC 8824 series) from
ISO/IEC 8824-1 as a notation to specify data and its associated Packed Encoding Rules (PER) from
ISO/IEC 8825-2 is widely used and gaining popularity. Its usage will provide maximum interoperability
and conformance to existing standards and will meet the specifically defined requirements for a generic
standard model for gas cylinder identification in that it
— enables and uses existing standard coding,
— is adaptable and expandable,
— does not include unnecessary information for a specific application, and
— has a minimum of overhead in storage and transmission.
RFID standards other than ASN.1, for definition of frequencies and protocols, have been developed
within recent years [see ISO/IEC 18000 (all parts)].
ISO 21007-1 provides a framework reference architecture for such systems. This part of ISO 21007 is a
supporting part to ISO 21007-1 and provides a standardized yet flexible and interoperable framework
for numbering schemes. This part of ISO 21007 details individual numbering schemes within the
framework for the automatic identification of gas cylinders.
Central to the effective use of many of the constructs is a structure to provide unambiguous
identification. This part of ISO 21007 provides a standardized data element construct for the automatic
identification of gas cylinders.
vi © ISO 2015 – All rights reserved

ISO 21007-2:2015(E)
The inconvenience of such a flexible concept is that a large storage memory is needed, particularly if a
large amount of information has to be stored and read directly from the RFID tag.
The following two alternatives could be used to address this issue:
— limit the information directly accessible on the RFID tag and obtain the additional information from
the host (ERP system);
— use a fixed data structure and length as shown in Annex E, as this can minimize the storage demand.
This part of ISO 21007 is intended to be used under a variety of national regulatory regimes, but has
[1]
been written so that it is suitable for the application of the UN Model Regulations. Attention is drawn
to requirements in the relevant national regulations of the country (countries) where the cylinders are
intended to be used that might override the requirements given in this part of ISO 21007. Where there
is any conflict between this part of ISO 21007 and any applicable regulation, the regulation always
takes precedence.
INTERNATIONAL STANDARD ISO 21007-2:2015(E)
Gas cylinders — Identification and marking using radio
frequency identification technology —
Part 2:
Numbering schemes for radio frequency identification
1 Scope
This part of ISO 21007 establishes a common flexible framework for data structure to enable the
unambiguous identification in gas cylinder (GC) applications and for other common data elements
in this sector.
This part of ISO 21007 enables a structure to allow some harmonization between different systems.
However, it does not prescribe any one system and has been written in a non-mandatory style so as not
to make it obsolete as technology changes.
The main body of this part of ISO 21007 excludes any data elements that form any part of transmission
or storage protocols such as headers and checksums.
For details on cylinder/tag operations, see Annex A.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 3166-1, Codes for the representation of names of countries and their subdivisions — Part 1: Country codes
ISO 13769, Gas cylinders — Stamp marking
ISO/TR 17329, Gas cylinders — Identification of gas cylinder manufacturer marks and their assigned radio
frequency identification (RFID) codes
ISO 21007-1:2005, Gas cylinders — Identification and marking using radio frequency identification
technology — Part 1: Reference architecture and terminology
ISO/IEC 8824-1:2008, Information technology — Abstract Syntax Notation One (ASN.1): Specification of
basic notation — Part 1
ISO/IEC 8825-2, Information technology — ASN.1 encoding rules: Specification of Packed Encoding Rules
(PER)
ISO/IEC 18000-6, Information technology — Radio frequency identification for item management —
Part 6: Parameters for air interface communications at 860 MHz to 960 MHz General
3 Terms, definitions and numerical notations
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 21007-1 and the following apply.
ISO 21007-2:2015(E)
3.1.1
bit rates
number of bits per second, independent of the data coding
3.1.2
carrier frequency
centre frequency of the downlink/uplink band
3.1.3
construct
one or more primitive constructs to form an ASN.1 message
3.1.4
data coding
coding that determines the baseband signal presentation, i.e., a mapping of logical bits to physical signals
Note 1 to entry: Examples are bi-phase schemes (Manchester, Miller, FM0, FM1, differential Manchester),
NRZ and NRZ1.
3.1.5
modulation
keying of the carrier wave by coded data described in accordance with commonly understood
methodologies (amplitude shift keying, frequency shift keying)
3.1.6
octet
set of eight binary digits (bits)
3.1.7
power limits within communication zone
limits that determine the minimum and maximum values of incident power referred to a 0 dB antenna
in front of the tag
Note 1 to entry: These two values also specify the dynamic range of the tag receiver. Power values are measured
without any additional losses due to rain or misalignment.
3.1.8
registration body
organization entitled to issue and keep track of issuer identification
Note 1 to entry: For examples, see Annex B.
3.1.9
tolerance of carrier frequency
maximum deviation of the carrier frequency expressed as a percentage
3.2 Numerical notations
The numerical notations used in this part of ISO 21007 are as follows:
— decimal (“normal”) notation has no subscript, e.g. 127;
— hexadecimal numbers are noted by subscript 16, e.g. 7F ;
— binary numbers are noted by subscript 2, e.g. 01111111 .
2 © ISO 2015 – All rights reserved

ISO 21007-2:2015(E)
4 Data presentation
4.1 General requirements
The data element construct determined in this part of ISO 21007 is an “enabling” structure. It is designed
to accommodate within its framework, data element constructs for a variety of GC applications,
from simple GC identification to more complex transactions with a wide variety of uses, and to allow
combinations of data elements to be used in a composite data construct. It is designed to allow as much
interoperability of the data elements within an electronic data interchange/electronic data transfer
(EDI/EDT) environment as is possible and has to provide a capability for a significant expansion of the
number of GC applications in the future.
This part of ISO 21007 takes cognizance of and accommodates the operation of systems of different
capabilities and will enable within its structure the interoperability of one transponder in any
country, even though the operator systems themselves may be significantly different, so long as there
is a common air interface (at reference point Delta) and protocol. Even where information has to be
collected by a separate interrogator because air carrier compatibility does not exist, the data once
collected is in a commonly interoperable format and so may be used accurately and effectively within
an EDI/EDT environment.
The data element structure defined in this part of ISO 21007 specifies the general presentation rules for
transfer of ASN.1 data schemes. It is also the purpose of this part of ISO 21007 to determine how ASN.1
will be used for data transmission in GC applications.
Excluding transfers in a predefined context, the first level of identification required in ASN.1 messages
identifies the context of the message. This part of ISO 21007 determines that in GC applications this is
achieved by using an object identifier that shall be determined in accordance with an arc determined in
ISO/IEC 8824-1:2008, Annex B.
The objective of this part of ISO 21007 is therefore to establish a basis where the message can always
be identified simply by reference to the relevant standard and without the requirement of central
registration authorities (except where those are specifically required in the referred-to document).
4.2 ASN.1 messages
Where there is a simple message where no further subdivision according to ASN.1 rules is possible, the
message is called an ASN.1 “primitive message”. Such messages will have only one identification and
length statement. The GC identification structure defined in ISO 21007-1:2005, Clause 3 is an ASN.1
primitive message.
4.3 Message identification requirements
The data constructs shall conform to ISO/IEC 8824-1.
With the exception of transfers in a predetermined context (see 4.4):
— All GC standard ASN.1 messages shall commence with a unique object identifier that shall be
determined in accordance with the arc 2 (joint ITU-T), followed by the object class indicating a
standard arc 0, followed by the reference to the standard:
{ ITU-T)(2) standard(0) standardxxx(yyy) }
— Where the data content relates to standards produced by other identified organizations, they shall
commence with a unique object identifier that shall be determined in accordance with the arc 2
(joint ITU-T), followed by the identification of an identified organization arc 3, followed by the
identification of the identified organization (as provided in Annex B), followed by the object class
indicating a standard arc 0, followed by the reference to the standard:
{ ITU-T(2) identified-organization (3) organization-identity(xxx) standard(0) standardxxx(zzz) }
ISO 21007-2:2015(E)
4.4 Predetermined context and the use of packed encoding rules
Where the context of a transfer is known, the data constructs determined in this part of ISO 21007 may
be assumed to be in accordance with the rules determined in ISO/IEC 8825-2.
In respect of any identification of an item using an ISO ASN.1 message, the data necessary for unambiguous
identification shall reside on the on-board equipment associated with the item being identified.
4.5 Sample GC data structure constructs
The ISO complete ASN.1 format is as follows:
octet 0 octet 1 octet 2 octet 3–4 octet 5-xx
02 20 00 ISO standard reference GC identification structure
16 16 16
The predetermined GC context follows:
octet 0-yy
GC identification structure
5 Gas cylinder identification structure (variable)
5.1 General requirements
The general requirement of the structure proposed shall be that it is constructed from one or more data
elements to form an ASN.1 message.
Each of these data elements shall be preceded by 2 octets that identify
a) the data scheme identifier (also referred to as DSI), and
b) the length of the data field.
Data scheme identifier (1 octet) Length of data field (1 octet) Data field
This part of ISO 21007 has been designed by adopting the principles of ISO/IEC 8824-1 and ISO/IEC 8825-
2, which utilize octets (bytes) of data elements to provide an application identifier, a coding identifier
and a length/use identifier in an “abstract syntax notation” for “open systems interconnection”.
By adopting the ISO/IEC 8824-1 and ISO/IEC 8825-2 abstract syntax notation with the inclusion of a
data element length indicator, the flexibility is provided for data elements of any length to be supported.
This data structure standard is itself given a migration path so that as technological developments allow
further capabilities, subsequent standards may provide additional data fields for use in all or some sector-
specific applications while maintaining the upwards compatibility from and to this part of ISO 21007.
The structure enables the chaining of multiple data elements from different application sectors to build
complex data element constructs. For example, a GC identification shall be followed by an ISO country
code, or perhaps a GC identification followed by a transient data set of the current contents, fill date and
location followed by a country identifier, etc.
It is expected that several data element structures will start with a GC identification data element.
4 © ISO 2015 – All rights reserved

ISO 21007-2:2015(E)
5.2 Data structure construct
5.2.1 General
The data structure construct is as follows:
Data scheme Length of data Data field Data scheme Length of data Data field
identifier field identifier field
5.2.2 Data scheme identifier (DSI)
The octet used for the data scheme identifier shall be used to identify to which of the standardized GC
coding scheme data formats the data element construct conforms.
Each number issued shall be supported by an ISO format standard detailing the data scheme that is to
be used within that format.
NOTE Clause 6 details the initial list of primitive data scheme allocations.
5.2.3 Length
The length octet shall determine the number of octets in the subsequent data fields. It shall be a length
indicator as defined in ISO/IEC 8825-2.
For coding, this field will be kept to less than 127, i.e. 1-byte length is expected. For constructs, the
extension bit may be used to signify a 3-byte length indicator.
5.2.4 Data field
The data field shall follow the number of octets of data that comprises the data field as determined in
the previous octet.
The data structure of the data field shall be defined in a series of standard data formats issued and
published by the gas cylinder data scheme issuing authority and forming subordinate standards in
support of this part of ISO 21007.
This field may also contain constructs of primitives as defined in ISO/IEC 8824-1 and ISO/IEC 8825-2.
6 Gas cylinder identification data schemes (variable)
6.1 General requirements
The essence of the general requirement of GC systems is constructed around a basic core unambiguous
identification. This GC identification numbering scheme provides a “fixed” core unambiguous
identification element.
It is envisaged that this core element of unambiguous identification will form the first data set of one or
many data sets in a GC environment using data structures that comply with the structure established
in ISO 21007-1.
Either data scheme “01” or data scheme “02” shall be used in accordance with 6.2 or 6.3, respectively. In
addition, data schemes “10”, “11”, “12”, etc., may optionally be used (see Table 1).
This data structure is designed to be used not only as a form for simple GC identification, but to form the
GC identification element of all standard GC messages where GC identification is a component. To this
extent, while this part of ISO 21007 has been primarily designed for use in a transponder/interrogator
environment, it is expected that other GC systems, while they use different transmission media and
effect similar data exchanges, shall adopt this standard numbering scheme.
ISO 21007-2:2015(E)
Table 1 — GC primitive data scheme identifiers
Data scheme number Data scheme identifier GC data scheme
0 40 Non-standard scheme
01 41 GC numbering scheme (binary)
02 42 GC numbering scheme (ASCII)
10 4A GC manufacturer information
11 4B GC approval information
12 4C GC package information
13 4D GC content information
14 4E GC commercial product information
15 4F GC production lot information
16 50 GC accessories information
20 54 GC acetylene specifics
This compact numbering data scheme can be replaced or com
...