<xs:simpleType name="MassPerEnergyUom">
  <xs:restriction base="eml:UomEnum">
    <xs:enumeration value="kg/(kW.h)">
      <xs:annotation>
        <xs:documentation>kilogram per kilowatt hour</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="kg/J">
      <xs:annotation>
        <xs:documentation>kilogram per joule</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="kg/MJ">
      <xs:annotation>
        <xs:documentation>kilogram per megajoule</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="lbm/(hp.h)">
      <xs:annotation>
        <xs:documentation>pound-mass per horsepower hour</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="mg/J">
      <xs:annotation>
        <xs:documentation>milligram per joule</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
  </xs:restriction>
</xs:simpleType>