<?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>2026-05-29 12:05:29</dct:modified>  <dc:language>en-US</dc:language>  </skos:ConceptScheme>  <skos:Concept rdf:about="https://digilab.ptb.de/dkd/refType/vocab/skos/547"><skos:prefLabel xml:lang="en-US">factorZ</skos:prefLabel> <skos:definition xml:lang="en-US">conversion factor to calculate mass into volume, accounting for buoyancy effects for distilled water </skos:definition> <skos:definition xml:lang="de">Konversionsfaktor zur Berechnung eines Volumens aus einer Masse unter Berücksichtigung der Auftriebseffekte für destilliertes Wasser </skos:definition> <skos:scopeNote xml:lang="en-US">Can either be taken from the table in Annex A of ISO 8655-6:2022 or calculated according to section 4 in ISO/TR 20461:2023 </skos:scopeNote> <skos:scopeNote xml:lang="de">Kann entweder aus der Tabelle in Annex A der ISO 8655-6:2022 entnommen werden oder berechnet werden gemäß Abschnitt 4 in ISO/TR 20461:2023 </skos:scopeNote> <skos:scopeNote xml:lang="de">Abschnitt 4 in ISO/TR 20461:2023 </skos:scopeNote> <skos:historyNote xml:lang="en-US">2026-04-20
Created </skos:historyNote> <skos:note xml:lang="en-US">Section 4 of ISO/TR 20461:2023 </skos:note> <skos:example xml:lang="en-US">

    
      Conversion method
    
    ISO 8655-6:2022
    Formula 2
    
      
         
1.00244129\micro\litre\milli\gram\tothe{-1}
         
      
    
  

 </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/295"/><skos:broader rdf:resource="https://digilab.ptb.de/dkd/refType/vocab/skos/546"/>  <dct:created>2026-04-20 13:10:36</dct:created>  </skos:Concept></rdf:RDF>