<xs:element name="Menge_OPS">
  <xs:complexType>
    <xs:sequence>
      <xs:element name="OPS" maxOccurs="unbounded">
        <xs:complexType>
          <xs:sequence>
            <xs:element name="Code">
              <xs:simpleType>
                <xs:restriction base="xs:string">
                  <xs:minLength value="5"/>
                  <xs:maxLength value="9"/>
                  <xs:pattern value="[135689]-\d\d[0-9a-hj-km-z](\.([0-9a-hj-kmnp-z]){1,2}){0,1}([RLB]){0,1}"/>
                </xs:restriction>
              </xs:simpleType>
            </xs:element>
          </xs:sequence>
        </xs:complexType>
      </xs:element>
    </xs:sequence>
  </xs:complexType>
</xs:element>