GS1 EPC Tag Data Standard 1.6 - Indicod-Ecr

15031504150515061507150815091510151115121513151415151516151715181519152015211522152315241525152615271528152915301531153215331534153515361537153815392. Number the digits and characters of the GS1 element string as shown above.3. Determine the number of digits L in the GS1 Company Prefix. This may be done, forexample, by reference to an external table of company prefixes.4. Arrange the digits as shown for the EPC URI. Note that the GDTI check digit d 13 isnot included in the EPC URI.Example:EPC URI: urn:epc:id:gdti:0614141.12345.006847GS1 element string: (253) 0614141 12345 2 006847Spaces have been added to the GS1 element string for clarity, but they are never encoded.8 URIs for EPC Pure Identity PatternsCertain software applications need to specify rules for filtering lists of EPC pureidentities according to various criteria. This specification provides a Pure Identity PatternURI form for this purpose. A Pure Identity Pattern URI does not represent a single EPC,but rather refers to a set of EPCs. A typical Pure Identity Pattern URI looks like this:urn:epc:idpat:sgtin:0652642.*.*This pattern refers to any EPC SGTIN, whose GS1 Company Prefix is 0652642, andwhose Item Reference and Serial Number may be anything at all. The tag length andfilter bits are not considered at all in matching the pattern to EPCs.In general, there is a Pure Identity Pattern URI scheme corresponding to each PureIdentity EPC URI scheme (Section 6.3), whose syntax is essentially identical except thatany number of fields starting at the right may be a star (*). This is more restrictive thanEPC Tag Pattern URIs (Section 13), in that the star characters must occupy adjacentrightmost fields and the range syntax is not allowed at all.The pure identity pattern URI for the DoD Construct is as follows:urn:epc:idpat:usdod:CAGECodeOrDODAACPat.serialNumberPatwith similar restrictions on the use of star (*).8.1 SyntaxThe grammar for Pure Identity Pattern URIs is given below.IDPatURI ::= “urn:epc:idpat:” IDPatBodyIDPatBody ::= GIDIDPatURIBody | SGTINIDPatURIBody |SGLNIDPatURIBody | GIAIIDPatURIBody | SSCCIDPatURIBody |GRAIIDPatURIBody | GSRNIDPatURIBody | GDTIIDPatURIBody |DODIDPatURIBody | ADIPatURIBodyGIDIDPatURIBody ::= “gid:” GIDIDPatURIMainGIDIDPatURIMain ::=2*(NumericComponent “.”) NumericComponent| 2*(NumericComponent “.”) “*”Copyright ©2005- 2011 GS1 AISBL, All Rights Reserved. Page 51 of 218