# ISO 80000-11: Quantities and units—Part 11: Characteristic numbers

> published ISO standard

**Wikidata**: [Q26711911](https://www.wikidata.org/wiki/Q26711911)  
**Source**: https://4ort.xyz/entity/iso-80000-11-quantities-and-units-part-11-characteristic-numbers


## References

1. Recommendation X.660 (07/2011): Information technology – Procedures for the operation of object identifier registration authorities: General procedures and top arcs of the international object identifier tree