<?xml version="1.0" encoding="utf-8"?><rdf:RDF  xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"  xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"  xmlns:skos="http://www.w3.org/2004/02/skos/core#"  xmlns:map="http://www.w3c.rl.ac.uk/2003/11/21-skos-mapping#"  xmlns:dct="http://purl.org/dc/terms/"  xmlns:dc="http://purl.org/dc/elements/1.1/"><skos:ConceptScheme rdf:about="https://digilab.ptb.de/dkd/refType/vocab/">  <dc:title>Metrology Database</dc:title>  <dc:creator>German Calibration Service (DKD)</dc:creator>  <dc:contributor>Thomas Krah, Daniel Hutzschenreuter, Benjamin Gloger, Muhammed-Ali Demir, Moritz Jordan</dc:contributor>  <dc:publisher>Deutscher Kalibrierdienst (German Calibration Service)</dc:publisher>  <dc:rights></dc:rights>  <dc:subject>metrology, reference types, digital calibration certificate, certificate of conformity</dc:subject>  <dc:description><![CDATA[  ]]></dc:description>  <dc:date>2023-06-19</dc:date>  <dct:modified>2026-04-10 06:58:36</dct:modified>  <dc:language>en-US</dc:language>  </skos:ConceptScheme>  <skos:Concept rdf:about="https://digilab.ptb.de/dkd/refType/vocab/skos/381"><skos:prefLabel xml:lang="en-US">ambient</skos:prefLabel> <skos:definition xml:lang="en-US">Container under which all ambient conditions are summarised. </skos:definition> <skos:definition xml:lang="de">Kontainer unter dem alle Umgebungsbedingungen zusammengefasst werden. </skos:definition> <skos:scopeNote xml:lang="en-US">There is usually more than one ambient condition that must be specified to document the process. Classic values are temperature, pressure and relative humidity. However, other values or combinations are also conceivable. Below the dcc:list element, it is possible to list any number of ambient conditions as dcc:quantity. </skos:scopeNote> <skos:scopeNote xml:lang="de">In der Regel gibt es mehr als eine Umgebungsbedingung welche zur Dokumentation des Vorgangs anzugeben ist. Klassische Angaben sind die Temperatur, der Druck und die relative Feuchte. Aber auch andere Angaben oder Zusammenstellungen sind denkbar. Unterhalb des dcc:list Element ist es möglich eine belibige Anzahl an Umgebungsbedingungen als dcc:quantity aufzulisten. </skos:scopeNote> <skos:historyNote xml:lang="en-US">2026-01-29 Created </skos:historyNote> <skos:example xml:lang="en-US">&lt;dcc:influenceConditions&gt;
  &lt;dcc:influenceCondition refType="basic_ambient"&gt;
    &lt;dcc:name&gt;
      &lt;dcc:content lang="de"&gt;Umgebungsbedingung&lt;/dcc:content&gt;
      &lt;dcc:content lang="en"&gt;Environmental condition&lt;/dcc:content&gt;
    &lt;/dcc:name&gt;
    &lt;dcc:description&gt;
      &lt;dcc:content lang="de"&gt;Alle Werte wurden während der Kalibrierung überwacht.&lt;/dcc:content&gt;
      &lt;dcc:content lang="en"&gt;All values were monitored during calibration.&lt;/dcc:content&gt;
    &lt;/dcc:description&gt;
    &lt;dcc:data&gt;
      &lt;dcc:quantity refType="basic_temperature"&gt;
        &lt;dcc:name&gt;
          &lt;dcc:content lang="de"&gt;Umgebungsbedingung Temperatur&lt;/dcc:content&gt;
          &lt;dcc:content lang="en"&gt;Environmental condition temperature&lt;/dcc:content&gt;
        &lt;/dcc:name&gt;
        &lt;si:real&gt;
          &lt;si:value&gt;23.0&lt;/si:value&gt;
          &lt;si:unit&gt;\degreecelsius&lt;/si:unit&gt;
          &lt;si:measurementUncertaintyUnivariate&gt;
            &lt;si:expandedMU&gt;
              &lt;si:valueExpandedMU&gt;1&lt;/si:valueExpandedMU&gt;
              &lt;si:coverageFactor&gt;1.732&lt;/si:coverageFactor&gt;
              &lt;si:coverageProbability&gt;1&lt;/si:coverageProbability&gt;
              &lt;si:distribution&gt;uniform&lt;/si:distribution&gt;
            &lt;/si:expandedMU&gt;
          &lt;/si:measurementUncertaintyUnivariate&gt;
        &lt;/si:real&gt;
      &lt;/dcc:quantity&gt;
      &lt;dcc:quantity refType="basic_humidityRelative"&gt;
        &lt;dcc:name&gt;
          &lt;dcc:content lang="de"&gt;Umgebungsbedingung rel. Feuchte&lt;/dcc:content&gt;
          &lt;dcc:content lang="en"&gt;Environmental condition relative humidity&lt;/dcc:content&gt;
        &lt;/dcc:name&gt;
        &lt;si:real&gt;
          &lt;si:value&gt;0.5&lt;/si:value&gt;
          &lt;si:unit&gt;\one&lt;/si:unit&gt;
          &lt;si:measurementUncertaintyUnivariate&gt;
            &lt;si:expandedMU&gt;
              &lt;si:valueExpandedMU&gt;0.1&lt;/si:valueExpandedMU&gt;
              &lt;si:coverageFactor&gt;1.732&lt;/si:coverageFactor&gt;
              &lt;si:coverageProbability&gt;1&lt;/si:coverageProbability&gt;
              &lt;si:distribution&gt;uniform&lt;/si:distribution&gt;
            &lt;/si:expandedMU&gt;
          &lt;/si:measurementUncertaintyUnivariate&gt;
        &lt;/si:real&gt;
      &lt;/dcc:quantity&gt;
      &lt;dcc:quantity refType="basic_pressure"&gt;
        &lt;dcc:name&gt;
          &lt;dcc:content lang="de"&gt;Umgebungsbedingung Absolutdruck&lt;/dcc:content&gt;
          &lt;dcc:content lang="en"&gt;Environmental condition absolute pressure&lt;/dcc:content&gt;
        &lt;/dcc:name&gt;
        &lt;si:real&gt;
          &lt;si:value&gt;102000&lt;/si:value&gt;
          &lt;si:unit&gt;\pascal&lt;/si:unit&gt;
          &lt;si:measurementUncertaintyUnivariate&gt;
            &lt;si:expandedMU&gt;
              &lt;si:valueExpandedMU&gt;500&lt;/si:valueExpandedMU&gt;
              &lt;si:coverageFactor&gt;1.732&lt;/si:coverageFactor&gt;
              &lt;si:coverageProbability&gt;1&lt;/si:coverageProbability&gt;
              &lt;si:distribution&gt;uniform&lt;/si:distribution&gt;
            &lt;/si:expandedMU&gt;
          &lt;/si:measurementUncertaintyUnivariate&gt;
        &lt;/si:real&gt;
      &lt;/dcc:quantity&gt;
    &lt;/dcc:data&gt;
  &lt;/dcc:influenceCondition&gt;
&lt;/dcc:influenceConditions&gt; </skos:example><skos:inScheme rdf:resource="https://digilab.ptb.de/dkd/refType/vocab/"/><skos:related rdf:resource="https://digilab.ptb.de/dkd/refType/vocab/skos/12"/><skos:broader rdf:resource="https://digilab.ptb.de/dkd/refType/vocab/skos/2"/>  <dct:created>2026-01-29 11:59:50</dct:created>  </skos:Concept></rdf:RDF>