GS1 EPC Tag Data Standard 1.6 - Indicod-Ecr

188018811882188318841885188618871888188918901891189218931894189518961897189818991900190119021903190419051906190719081909191019111912urn:epc:raw:[att=x01][umi=1][xpc=x0004]:96.x1234567890ABCDEF01234567This is a tag with toggle=0, random data in bits 20 h onward (not decodable as an EPC),the hazardous material attribute bit set to one, non-zero contents in user memory, andhas been recommissioned (as indicated by the extended PC).urn:epc:raw:[xpc=x0001]:96.xC1.x1234567890ABCDEF01234567This is a tag with toggle=1, Application Family Indicator = C1 (hexadecimal), and hashad its user memory killed (as indicated by the extended PC).12.3EPC Tag URI and EPC Pure Identity URIThe Pure Identity EPC URI as defined in Section 6 is a representation of an EPC for usein information systems. The only information in a Pure Identity EPC URI is the EPCitself. The EPC Tag URI, in contrast, contains additional information: it specifies thecontents of all control information fields in the EPC memory bank, and it also specifieswhich encoding scheme is used to encode the EPC into binary. Therefore, to convert aPure Identity EPC URI to an EPC Tag URI, additional information must be provided.Conversely, to extract a Pure Identity EPC URI from an EPC Tag URI, this additionalinformation is removed. The procedures in this section specify how these conversionsare done.12.3.1 EPC Binary Coding SchemesFor each EPC scheme as specified in Section 6, there are one or more corresponding EPCBinary Coding Schemes that determine how the EPC is encoded into binaryrepresentation for use in RFID tags. When there is more than one EPC Binary CodingScheme available for a given EPC scheme, a user must choose which binary codingscheme to use. In general, the shorter binary coding schemes result in fewer bits andtherefore permit the use of less expensive RFID tags containing less memory, but arerestricted in the range of serial numbers that are permitted. The longer binary codingschemes allow for the full range of serial numbers permitted by the GS1 GeneralSpecifications, but require more bits and therefore more expensive RFID tags.It is important to note that two EPCs are the same if and only if the Pure Identity EPCURIs are character for character identical. A long binary encoding (e.g., SGTIN-198) isnot a different EPC from a short binary encoding (e.g., SGTIN-96) if the GS1 CompanyPrefix, item reference with indicator, and serial numbers are identical.The following table enumerates the available EPC binary coding schemes, and indicatesthe limitations imposed on serial numbers.EPCSchemeEPC BinaryCodingSchemeEPC +FilterBitCountIncludesFilterValueSerial Number Limitationsgtin sgtin-96 96 Yes Numeric-only, no leading zeros, decimalvalue must be less than 2 38 (i.e., decimalvalue less than or equal to274,877,906,943).Copyright ©2005- 2011 GS1 AISBL, All Rights Reserved. Page 70 of 218