EN ISO 21007-2:2013

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.HNYHQþQHGasflaschen - Identifizierung und Kennzeichnung mittels Hochfrequenzidentifizierungstechnologie - Teil 2: Nummerierungssysteme für die Hochfrequenzidentifizierung (ISO 21007-2:2013)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 21007-2:2013)Gas cylinders - Identification and marking using radio frequency identification technology - Part 2: Numbering schemes for radio frequency identification (ISO 21007-2:2013)23.020.30MHNOHQNHPressure vessels, gas cylindersICS:Ta slovenski standard je istoveten z:EN ISO 21007-2:2013SIST EN ISO 21007-2:2013en,fr,de01-november-2013SIST EN ISO 21007-2:2013SLOVENSKI
STANDARDSIST EN ISO 21007-2:20051DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN ISO 21007-2
February 2013 ICS 23.020.30 Supersedes EN ISO 21007-2:2005English Version
Gas cylinders - Identification and marking using radio frequency identification technology - Part 2: Numbering schemes for radio frequency identification (ISO 21007-2:2013)
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 21007-2:2013)
Gasflaschen - Identifizierung und Kennzeichnung mittels Hochfrequenzidentifizierungstechnologie - Teil 2: Nummerierungssysteme für die Hochfrequenzidentifizierung (ISO 21007-2:2013) This European Standard was approved by CEN on 14 December 2012.
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.
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Reference numberISO 21007-2:2013(E)© ISO 2013
INTERNATIONAL STANDARD ISO21007-2Second edition2013-02-01Gas 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
ISO 21007-2:2013(E)
©
ISO 2013 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 Case postale 56 • CH-1211 Geneva 20 Tel.
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ii © ISO 2013 – All rights reserved
ISO 21007-2:2013(E) © ISO 2013 – All rights reserved iii Contents Page Foreword.iv Introduction.v 1 Scope.1 2 Normative references.1 3 Terms, definitions and numerical notations.1 4 Data presentation.2 5 Gas cylinder identification structure.4 6 Gas cylinder identification data schemes.5 7 Air interface specifications.15 8 Transponder memory addressing.16 Annex A (normative)
Technical solution.17 Annex B (informative)
List of codes for registration bodies.18 Annex C (informative)
List of codes for gas cylinder manufacturers.19 Annex D (informative)
Gas quantity units code.44 Annex E (informative)
Host to interrogator to MODBUS communication protocol.45
ISO 21007-2:2013(E) iv © ISO 2013 – All rights reserved 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. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member 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 shall not be held responsible for identifying any or all such patent rights. ISO 21007-2 was prepared by Technical Committee ISO/TC 58, Gas cylinders, Subcommittee SC 4, Operational requirements for gas cylinders. This second edition cancels and replaces the first edition (ISO 21007-2:2005). Only Annex C has been revised. 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 SIST EN ISO 21007-2:2013

ISO 21007-2:2013(E) © ISO 2013 – All rights reserved v Introduction Throughout industry and in commerce, trade and the domestic sector, the employment of gas cylinders (referred to as GC in this part of ISO 21007) to enable the local consumption and use of gases and liquids, without the need for in-situ high cost permanent pressure vessel installations, is an important part of modern practice. Such cylinders provide complex gas mixes for medical, industrial or research use. As the cylinders can contain a wide variety of gases, identification is of paramount importance. It is mandatory to be able to uniquely identify each cylinder. As many contents are of limited life, and for product quality and liability tracking and tracing, in some circumstances it could be necessary or desirable to identify not only the type of gas or liquid, but also such details as filling station, batch and date of fill. Various methods and technologies such as physical identification through indentation; paper, card, metal, and plastic labeling; 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 is 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 host and transponder. The signal can be modulated or unmodulated according to architecture of the system. In many cases it will be necessary or desirable to use one air carrier frequency and protocol, but this will not always be possible or even desirable in all situations, and it could be useful to separate fundamentally different cylinders by the response frequency. 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 portable 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. ISO 21007-1 provides a framework reference architecture for such systems. This part of ISO 21007 is a supporting part of 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. SIST EN ISO 21007-2:2013

ISO 21007-2:2013(E) vi © ISO 2013 – All rights reserved 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. Where there is any conflict between this International Standard and any applicable regulation, the regulation always takes precedence.
INTERNATIONAL STANDARD ISO 21007-2:2013(E) © ISO 2013 – All rights reserved 1 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 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 of 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 21007-1, 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 ISO/IEC 8825-2, Information technology — ASN.1 encoding rules: Specification of Packed Encoding Rules (PER) 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. 3.1.1 bit rates number of bits per second, independent of the data coding SIST EN ISO 21007-2:2013

ISO 21007-2:2013(E) 2 © ISO 2013 – All rights reserved 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 A. 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. 7F16; ⎯ Binary numbers are noted by subscript 2, e.g. 011111112. 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 SIST EN ISO 21007-2:2013

ISO 21007-2:2013(E) © ISO 2013 – All rights reserved 3 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 Annex B of ISO/IEC 8824-1:2008. 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 Clause 3 of ISO 21007-1:2005 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) } 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. SIST EN ISO 21007-2:2013

ISO 21007-2:2013(E) 4 © ISO 2013 – All rights reserved 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 0216 2016 0016 ISO standard reference GC identification structure
The predetermined GC context follows: octet 0-yy GC identification structure
5 Gas cylinder identification structure 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. 5.2 Data structure construct 5.2.1 General The data structure construct is as follows: Data scheme identifier Length of data field Data field Data scheme identifier Length of data field Data field SIST EN ISO 21007-2:2013

ISO 21007-2:2013(E) © ISO 2013 – All rights reserved 5 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 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. can 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. Table 1 — GC primitive data scheme identifiers Data scheme number Data scheme identifier GC data scheme 0 4016 Nonstandard scheme 01 4116 GC numbering scheme (binary) 02 4216 GC numbering scheme (ASCII)
ISO 21007-2:2013(E) 6 © ISO 2013 – All rights reserved Data scheme number Data scheme identifier GC data scheme 10 4A16 GC manufacturer information 11 4B16 GC approval information 12 4C16 GC package information 13 4D16 GC content information 14 4E16 GC commercial product information 15 4F16 GC production lot information 16 5016 GC accessories information
20 5416 GC acetylene specifics
This compact numbering data scheme can be replaced or combined with a more versatile identification scheme allowing the use of existing non-numeric gas cylinder identifications. This alternate unambiguous identification data set will be given the DSI appellation: data scheme 02. Other data schemes concerning the package and content of gas cylinders proposed in 6.4 to 6.11 provide capability for other applications that simplify GC identification. The data scheme identifier (DSI) is described in Table 1; the length is the number of bits of the information field. Clauses 6.2 to 6.11 give some examples for the content of these data schemes. Clauses 6.2 and 6.3 describe the minimum definition for the unique identification number of a GC. The choice is between a binary (6.2) and an ASCII (6.3) version. All other definitions in 6.4 to 6.11 are optional.
Figure 1 — Flow chart for principles of 6.2 to 6.11 6.2 Data scheme 01: numbering (binary) 6.2.1 General If data scheme 01 is used, the unique number shall be coded in binary format as indicated below. The format provides a transponder code mandatory field providing specific adaptation to the requirements for GC identification in the GC environment. The code length is 64 bits or more and will be preceded by 2 octets that identify, respectively, the GC DSI (i.e. 4116 primitive) and the code length in octets (i.e. 0816 or more). The Data scheme 01 structure is as follows: Data scheme identifier Length Unique number data field 4116 0816 or more
ISO 21007-2:2013(E) © ISO 2013 – All rights reserved 7 The third field contains the GC unambiguous identification number. The following structure details the elements and content of the unambiguous data structure and is to be read in conjunction with the notes shown following the structure. Unique number data field: ISO 3166-1 issuer country code Registration body Issuer identifier Service number / unique number
6.2.2 Issuer country code The issuer country code as specified by ISO 3166-1 is as follows:
Bits Variables Type (binary 0-4 095) 12 4096 Binary
6.2.3 Registration body The registration body is as follows:
Bits Variables Type (binary 0-15) 4 16 Binary
6.2.4 Issuer identifier The issuer identifier is as follows:
Bits Variables Type (binary
0-16 772 215) 24 16 772 216 Binary
6.2.5 Unique number A unique number within each country specified by ISO 3166-1 shall be allocated by a registration body (see Annex B).
Bits Variables Type (binary 0-16 772 215 or more) 24 16 772 216
or more Binary
6.3 Data scheme 02: numbering (ASCII) 6.3.1 General If Data scheme 02 is used, the unique number shall be coded in ASCII format as indicated below. The format provides a transponder code mandatory field providing specific adaptation to the requirements for GC identification in the GC environment. SIST EN ISO 21007-2:2013

ISO 21007-2:2013(E) 8 © ISO 2013 – All rights reserved The code length is 40 bits plus unique string length and will be preceded by 2 octets that identify, respectively, the GC DSI (i.e. 4216 primitive) and the code length in octets (i.e. 0516 plus string length). The Data scheme 02 structure is as follows: Data scheme identifier Length Unique number data field 4216 0516 + string length
The third field contains the GC unambiguous identification number. The following structure details the elements and content of the unambiguous data structure and is to be read in conjunction with the notes following the structure. The Unique number data field is as follows: ISO 3166-1 issuer country code Registration body Issuer identifier Service number / unique number
6.3.2 Issuer country code The issuer country code as specified by ISO 3166-1 is as follows:
Bits Variables Type (binary 0-4 095) 12 4 096 Binary
6.3.3 Registration body The registration body is as follows:
Bits Variables Type (binary 0-15)
4 16 Binary
6.3.4 Issuer identifier The issuer identifier is as follows:
Bits Variables Type (binary
0-16 772 215) 24 16 772 216 Binary
A unique number within each country specified by ISO 3166-1 shall be allocated by a registration body (see Annex B). 6.3.5 Unique string A unique string provides a unique service/number issued by the operator. Strings should include alphanumeric characters only, excluding accented characters or special symbols such as “ - ”
or blank (i.e. 26 roman uppercase alphabetic letters (A-Z) plus 10 (0-9) numeric characters) and shall be as follows: SIST EN ISO 21007-2:2013

ISO 21007-2:2013(E) © ISO 2013 – All rights reserved 9
Bits Variables Type (8 bit characters ASCII string) 48 2 176 782 336
or more ASCII
6.4 Data scheme 10: cylinder manufacturer information (optional) 6.4.1 General Data scheme 10 determines the form of the data field content, for GC identification for DSI 10 of ISO 27001-1. The Data scheme 10 structure is as follows: Data scheme identifier Length Cylinder manufacturer information data field 4A16 4016 or more
The third field contains the cylinder manufacturer identification number and the manufacturing serial number of the cylinder. The following structure details the elements and content of the data structure and is to be read in conjunction with the notes following the structure. The cylinder manufacturer information data field is as follows: Manufacturer code Manufacturer serial number
6.4.2 Manufacturer code The manufacturer code is as follows:
Bits Variables Type (binary 0-65 535) 16 65 536 Binary
See Annex C. 6.4.3 Manufacturer serial number The manufacturer serial number is an alphanumeric field allocated by the manufacturer and readable on the cylinder in accordance with ISO 13769.
Bits Variables Type (8 bit characters ASCII string) 4 8 or more 2 176 782 336 or more ASCII
Strings should include alphanumeric characters only, excluding accented characters or special symbols such as “ - ”
or blank. (i.e. 26 roman uppercase alphabetic letters (A-Z) plus 10 (0-9) numeric characters). The recommended length of this DSI unique data element is 64 bits (with a 6-character manufacturer serial number) or more. SIST EN ISO 21007-2:2013

ISO 21007-2:2013(E) 10 © ISO 2013 – All rights reserved 6.5 Data scheme 11: cylinder approval information (optional) 6.5.1 General Data scheme 11 determines the form of the data field content for GC identification for DSI 11 of ISO 27001-1. The Data scheme 11 structure is as follows: Data scheme identifier Length Cylinder approval information data field 4B16 1016
The third field contains information about the countries where the cylinder is approved. The following structure details the elements and content of the data structure and is to be read in conjunction with the notes following the structure. The cylinder approval information data field is as follows: ISO 3166-1 country code
6.5.2 Country code The country code specified by ISO 3166-1 is as follows:
Bits Variables Type (binary 0-65 535) 16 65 536 Binary
This field contains the code for the country where the cylinder is approved. ISO 3166-1 provides the 900 to 999 codes range for private uses. In the context of this standard, 90010 is reserved to indicate a European approval, 90110 to 99910 can be used to build private groups of countries, for cylinders having several approval stamps and not a European approval. The recommended length of this DSI unique data element is 16 bits. 6.6 Data scheme 12: cylinder package information (optional) 6.6.1 General Data scheme 12 determines the form of the data field content for GC identification for DSI 12 of ISO 27001-1. The Data scheme 12 structure is as follows: Data scheme identifier Length Cylinder package information data field 4C16 4416
The third field contains the water capacity, working pressure, tare weight and last test date of the cylinder. The following structure details the elements and content of the data structure and is to be read in conjunction with the notes following the structure. SIST EN ISO 21007-2:2013

ISO 21007-2:2013(E) © ISO 2013 – All rights reserved 11 The cylinder package information data field is as follows: Water capacity Working pressure Tare weight Last test date
6.6.2 Water capacity (l) The water capacity is a numeric field indicating the water capacity in litres in accordance with ISO 13769 in a specific compact decimal floating point coding:
Bits Variables Type
(float) 12 Real
Numbers are noted as x × 10y with x ranging from 0 to 255 and y ranging from −7 to +7. The 12-bit field is coded as follows. The 8 most significant bits (0 to 7) are used for the mantissa (x) coded in binary, bit 8 is used for the sign of the exponent (0 = +, 1= -), and the 3 least significant digits are used for the exponent y (power of 10). EXAMPLE 1 0 0 1 0 1 1 1 1 0 0 1 x ± y
represents 151 × 10−1, or 15,1 in decimal (100101112 = 15110) 6.6.3 Working pressure (bar) The working pressure is a numeric field indicating the working pressure in bar in accordance with ISO 13769:
Bits Variables Type
(float) 12 Real
6.6.4 Tare weight (kg) The tare weight is a numeric field indicating the tare weight in kilograms.
Bits Variables Type
(float) 12 Real
6.6.5 Last test date The last test date is a numeric field indicating the last test date of the cylinder:
Bits Variables Type
(date) 24 Date
ISO 21007-2:2013(E) 12 © ISO 2013 – All rights reserved The date is coded as YYYYMMDD, on a 24 bit data structure. Bits 19-23 (5 least significant bits) are used to code the day number in binary (1 to 31), bits 15-18 are used to code the month number in binary (1 to 12), bits 0-14 are used to code the year in binary. EXAMPLE 0 0 0 0 1 1 1 1 1 0 0 1 1 1 1 0 1 1 1 1 1 1 0 0 Year : 1999 Month : 07 Day : 28
represents the 28th of July 1999. The length of this DSI data element is 60 bits (3C16). 6.7 Data scheme 13: cylinder content information (optional) 6.7.1 General Data scheme 13 determines the form of the data field content, for GC identification for DSI 13 of ISO 27001-1. Data scheme 13 structure is as follows: Data scheme identifier Length Cylinder content information data field 4D16 2816
The third field contains the content UN number code and the fill date of the cylinder. The following structure details the elements and content of the data structure and is to be read in conjunction with the notes following the structure. The cylinder content information data field is as follows: Content code (UN number) Fill date
6.7.2 Content code The content code is an alphanumeric field containing the UN number code for the content of the cylinder:
Bits Variables Type (binary 0-65 535) 16 or more 65 636 or more Binary
6.7.3 Fill date The fill date is a date field indicating the date the cylinder was filled (see 6.6.5 for date coding):
Bits Variables Type
(date) 24 Date
The length of this DSI data element is 40 bits (2816) or more. SIST EN ISO 21007-2:2013

ISO 21007-2:2013(E) © ISO 2013 – All rights reserved 13 6.8 Data scheme 14: commercial product information (optional) 6.8.1 General Data scheme 14 determines the form of the data field content, for GC identification for DSI 14 of ISO 27001-1. The Data scheme 14 structure is as follows: Data scheme identifier Length Commercial product information data field 4E16 4816 or more
The third field contains the commercial product ID and, optionally, lot number and expiration date. The following structure details the elements and content of the data structure and is to be read in conjunction with the notes following the structure. The commercial product information data field is as follows: Quantity Quantity unit Product ID
6.8.2 Quantity Quantity is a numeric field containing the quantity of product (gas) sold with the cylinder:
Bits Variables Type (binary 0-4 095) 12 4 096 Binary
6.8.3 Quantity unit code Quantity unit code is a numeric field indicating the engineering unit used for the previous quantity (see Annex D):
Bits Variables Type (binary 0-4 095) 12 4 096 Binary
6.8.4 Product ID Product ID is an alphanumeric field (5 characters or more) referencing the commercial product sold with the cylinder:
Bits Variables Type (8 bit characters ASCII string) 40 or more 2 176 782 336 or more ASCII
Strings should include alphanumeric characters only, excluding accented characters or special symbols such as “ - ”
or blank (i.e. 26 roman uppercase alphabetic letters (A-Z) plus 10 (0-9) numeric characters. The length of this DSI data element is 64 bits (4016 or more). SIST EN ISO 21007-2:2013

ISO 21007-2:2013(E) 14 © ISO 2013 – All rights reserved 6.9 Data scheme 15: production lot information (optional) 6.9.1 General This sub-clause determines the form of the data field content, for GC identification for DSI 15 of ISO 27001-1. The data scheme 15 structure is as follows: Data scheme identifier Length Lot information data field 4F16 4816 or more
The third field contains the commercial product ID and, optionally, lot number and expiration date.
The following structure details the elements and content of the data structure and is to be read in conjunction with the notes following the structure. The lot information data field is as follows: Expiration date Lot ID
6.9.2 Expiration date Expiration date is a numeric field containing the expiration date of the cylinder (see 6.6.5 for date coding):
Bits Variables Type
(date) 24 Date
6.9.3 Lot ID Lot ID is an alphanumeric field (6 characters or more) referencing the cylinder filling lot identifier:
Bits Variables Type (8 bit characters ASCII string) 48 or more 2 176 782 336 or more ASCII
Strings should include alphanumeric characters only, excluding accented characters or special symbols such as “-” or blank (i.e. 26 roman uppercase alphabetic letters (A-Z) plus 10 (0-9) numeric characters. The length of this DSI data element is 72 bits (4816) or more. 6.10 Data scheme 16: accessories information (optional) This data scheme will contain information about accessories with which the cylinder is equipped (valve, connector, fittings). 6.11 Data scheme 20: acetylene specifics (optional) 6.11.1 General Data scheme 20 determines the form of the data field content, for GC identification for DSI 20 of ISO 27001-1. SIST EN ISO 21007-2:2013

ISO 21007-2:2013(E) © ISO 2013 – All rights reserved 15 The Data scheme 20 structure is as follows: Data scheme identifier Length Acetylene specifics 5416 816
The third field contains information about the porous mass for acetylene cylinders. The following structure details the content of the data structure and is to be read in conjunction with the notes following the structure. Acetylene specifics are as follows: Porous mass characteristics
6.11.2 Porous mass characteristics Porous mass characteristics is a numeric field providing characteristics of the porous mass:
Bits Variables Type (binary 0-255) 8 256 binary
Bit 0 (most significant bit) is used to define a monolithic/nonmonolithic attribute of the porous mass. Bit 0 = 0: nonmonolithic, bit 0 = 1: monolithic. The length of this DSI data element is 8 bits (816). 7 Air interface specifications 7.1 Technical requirements RFID systems used in the GC sector use different frequencies. GC RFID application standards specify the use of a limited number of air interfaces. However, where the same frequency is used, the standard air interface parameters are defined in 7.3 to ensure minimum physical interoperability. Other parameters listed in 7.3 shall be fully documented. Standard parameters correspond to layer 1 (physical communication layer) in the OSI convention. Conformance will allow communication between a standard interrogator and multiple tag/transponders, provided that the interrogator is driven by appropriate software. However, OSI communication layers 2 and above shall be fully documented for each standard tag/transponder technology. 7.2 Downlink and uplink Communication for information from reader/interrogator to tag is considered as “downlink”. Communication for information from tag to reader/interrogator is considered as “uplink”. SIST EN ISO 21007-2:2013

ISO 21007-2:2013(E) 16 © ISO 2013 – All rights reserved 7.3 Standard downlink/uplink parameters Standard PGC parameter sets are as follows: Carrier frequency 125 kHz 13,56 MHz Tolerance of carrier frequency ± 0,01 % (downlink) ± 3 % (uplink) ± 0,01 % (downlink) ± 1,6 % (uplink) Modulation ASK ASK Data coding Manchester Miller Power limits within communication zone 67 dBµA/m @ 10 m or 77 dBµA/m @ 3 m 42 dBµA/m @ 10 m or 52 dBµA/m @ 3 m Bit rate u 8 kbit/s 26 kbit/s
8 Transponder memory addressing 8.1 General requirements Beyond conformance to the air interface specification of this part of ISO 21007 enabling physical communication at OSI layer 1 to achieve interoperability, RFID systems used in the GC sector should adopt common rules for accessing standard GC data sets. A specific concern is transponder/tag memory addressing. Different transponders/tags include different features such as passwords, control zones and transponder/tag serial numbers. Application addressable memory areas thus have different address limits, making it inappropriate to adopt a fixed address for PGC data sets. The situation is the same whether using predetermined context rules or not (see 4.3 and 4.4). The ISO/IEC 8824-1 notion of “message” cannot directly be extracted from actual transponder memory mappings. It is proposed, therefore, that interoperability is achieved at interrogator level by software features (reference point Zeta). The communication protocol between host and interrogator shall include a layer of “virtual transponder/tag addressing” that will be transponder/tag independent. The GC data sets will be accessed at fixed virtual addresses using that protocol. The interrogator will translate or offset these fixed virtual address access requests into transponder/tag dependent requests at point Delta after identification of the actual transponder/tag technology. This protocol shall be fully documented by interrogator
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