<xs:simpleType name="MassPerAreaUom">
  <xs:restriction base="eml:UomEnum">
    <xs:enumeration value="0.01 lbm/ft2">
      <xs:annotation>
        <xs:documentation>pound-mass per hundred square foot</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="kg/m2">
      <xs:annotation>
        <xs:documentation>kilogram per square metre</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="lbm/ft2">
      <xs:annotation>
        <xs:documentation>pound-mass per square foot</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="Mg/m2">
      <xs:annotation>
        <xs:documentation>megagram per square metre</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="ton[US]/ft2">
      <xs:annotation>
        <xs:documentation>US ton-mass per square foot</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
  </xs:restriction>
</xs:simpleType>