Container for defining derived units in terms of their root units. This allows a precise definition of a wide range of units. The goal is to improve interoperability among applications and databases which use derived units based on commonly encountered root units. RootUnits has the following child elements:
| Child | Namespace | Type | Use | Cardinality | Choice | Description | |
|---|---|---|---|---|---|---|---|
| EnumeratedRootUnit | unitsml | unitsml:EnumeratedRootUnitType | opt. | [0, ∞] | False | Element for a root unit (from an extensive enumerated list) allowing an optional prefix and power. E.g., mm | 2 |