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</topic><topic id="https://digilab.ptb.de/oiml-g-18/vocab/skos/176"><instanceOf><topicRef xlink:href="#term"/></instanceOf><baseName><baseNameString>base conditions           #01026</baseNameString></baseName>  <occurrence>    <instanceOf>      <topicRef xlink:href="#scope-note"/>    </instanceOf><baseName><baseNameString><![CDATA[ Although the term “reference conditions” is often used instead of “base conditions”, metering and base conditions (that refer only to the volume of the liquid to be measured or indicated), should not be confused with the “rated operating conditions” and “reference conditions” that apply to influence quantities. ]]> </baseNameString></baseName>  </occurrence></topic>  <association>    <instanceOf>      <topicRef xlink:href="#broader-narrower"/>    </instanceOf>    <member>      <roleSpec>  <topicRef xlink:href="#narrower"/>      </roleSpec>      <topicRef xlink:href="#https://digilab.ptb.de/oiml-g-18/vocab/skos/176"/>    </member>    <member>      <roleSpec>  <topicRef xlink:href="#broader"/>      </roleSpec>      <topicRef xlink:href="#https://digilab.ptb.de/oiml-g-18/vocab/skos/2"/>    </member>  </association></topicMap>