<xs:simpleType name="VolumePerPressureUom"><xs:restriction base="eml:UomEnum"><xs:enumeration value="bbl/psi"><xs:annotation><xs:documentation>barrel per psi</xs:documentation></xs:annotation></xs:enumeration><xs:enumeration value="m3/kPa"><xs:annotation><xs:documentation>cubic metre per kilopascal</xs:documentation></xs:annotation></xs:enumeration><xs:enumeration value="m3/Pa"><xs:annotation><xs:documentation>cubic metre per Pascal</xs:documentation></xs:annotation></xs:enumeration></xs:restriction></xs:simpleType>