ISO 15926-2 model in Turtle format 
Revision log
| Date | Revision description |
| 2024-02-24 | Added owl:Restriction owl:minCardinality "0"^^xsd:nonNegativeInteger to hasEnd1Cardinality and hasEnd2Cardinality of ClassOfRelationship, to express their optionality. |
| 2022-11-10 | Added downloadable listing |
| 2021-05-17 | Editoral update |
| 2016-11-07 | Moved the entity types as discussed in the topic Part 2 extended data model< back to the lci ontology |
| 2016-09-11 | Deleted the graph depicting an owl:List; added the entity types as discussed in the topic Part 2 extended data model |
| 2015-07-26 | Added OWLList, since co-ode.org is no longer accessible, updated ClassOfMultidimensionObject and MultidimensionObject |
| 2015-07-19 | First issue |