<?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/479"><skos:prefLabel xml:lang="en-US">Risetime</skos:prefLabel> <skos:definition xml:lang="en">Current pulse risetime
The interval of time between the instants at which the instantaneous value of a current pulse first reaches a specified lower value and then a specified upper value.
Note:  Unless otherwise specified, the lower and upper values are fixed at 10 % and 90 % of the pulse magnitude.  </skos:definition> <skos:definition xml:lang="de">Stromimpulsanstiegszeit
Das Zeitintervall zwischen den Zeitpunkten, an denen der Momentanwert eines Impulses zunächst einen spezifische unteren und dann einen spezifische oberen Wert erreicht.
Anmerkung: Soweit nicht anders spezifiziert, beträgt die Unter- und Obergrenze 10% und 90% der Pulsamplitude. </skos:definition> <skos:scopeNote xml:lang="en">Unit: s </skos:scopeNote> <skos:scopeNote xml:lang="en">DSI Unit: \second </skos:scopeNote> <skos:scopeNote xml:lang="en">SI Unit: s </skos:scopeNote> <skos:historyNote xml:lang="en">2026-04-08 Created </skos:historyNote> <skos:note xml:lang="en">Electropedia (IEC) 161-02-05 and 801-24-29 </skos:note> <skos:example xml:lang="en"> </skos:example><skos:inScheme rdf:resource="https://digilab.ptb.de/dkd/refType/vocab/"/><skos:broader rdf:resource="https://digilab.ptb.de/dkd/refType/vocab/skos/468"/>  <dct:created>2026-04-08 06:52:07</dct:created>  </skos:Concept></rdf:RDF>