<?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/358"><skos:prefLabel xml:lang="en-US">flowVelocity</skos:prefLabel> <skos:definition xml:lang="en">Flow velocity of the calibration medium </skos:definition> <skos:definition xml:lang="de">Anströmgeschwindigkeit des Kalibriergegenstand mit dem Kalibriermedium </skos:definition> <skos:scopeNote xml:lang="de">Angabe laut DKD-R 5-8 </skos:scopeNote> <skos:scopeNote xml:lang="en">Statement according to DKD-R 5-8 </skos:scopeNote> <skos:historyNote xml:lang="en">created 2025-12-12 </skos:historyNote> <skos:note xml:lang="en">DKD-R 5-8 </skos:note> <skos:note xml:lang="de">DKD-R 5-8 </skos:note> <skos:example xml:lang="en">
    
        Anströmgeschwindigkeit
        Flow velocity
    
    
        Der Feuchtesensor wurde bei der Messung mit der genannten Strömungsgeschwindigkeit angeströmt.
        During the measurement, the flow velocity to the humidity sensor was below the maximum permissible value.
    
    DKD-R 5-8:2019-02
    https://doi.org/10.7795/550.20190214
    
        
            
                Maximale Anströmgeschwindigkeit
                Maximum velocity of approach
            
            
                Der Feuchtesensor wurde bei der Messung mit der angegebenen Strömungsgeschwindigkeit angeströmt.
                The humidity sensor was subjected to the specified flow velocity during the measurement.
            
            
                NaN 
                \metre\second\tothe{-1} 
                 
                     
                        NaN
                        0.01
                        0.03
                        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/112"/><skos:broader rdf:resource="https://digilab.ptb.de/dkd/refType/vocab/skos/282"/>  <dct:created>2025-12-12 09:31:01</dct:created>  </skos:Concept></rdf:RDF>