Message

A package level code MUST be from the PEPPOL subset of GS1 7009 code list.

Context
cbc:PackageLevelCode
Test
( ( not(contains(normalize-space(.),' ')) and contains( ' CU DU TU HN ',concat(' ',normalize-space(.),' ') ) ) )
Usage
/ ubl:Catalogue / cac:CatalogueLine / cbc:PackLevelCode