<?xml version="1.0" encoding="utf-8"?><Thesaurus
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	xsi:schemaLocation="http://schemas.bs8723.org/XmlSchema/DD8723-5.xsd">	 <dc:identifier>https://digilab.ptb.de/oiml-g-18/vocab/</dc:identifier>  <dc:title>OIML G18 Controlled Vocabulary</dc:title>  <dc:creator>Julia Neumann</dc:creator>  <dc:subject></dc:subject>  <dc:description><![CDATA[  ]]></dc:description>  <dc:publisher>Julia Neumann</dc:publisher>  <dc:date>2022-12-16</dc:date>  <dc:language>en-EN</dc:language><ThesaurusConcept dc:identifier="https://digilab.ptb.de/oiml-g-18/vocab/skos/394">	<dcterms:created>2022-12-19 09:13:30</dcterms:created><PreferredTerm dc:identifier="https://digilab.ptb.de/oiml-g-18/vocab/skos/394" xml:lang="en-EN">	<LexicalValue>detection limit           #00151</LexicalValue>	<dcterms:created>2022-12-19 09:13:30</dcterms:created></PreferredTerm><ScopeNote xml:lang="en-EN">  <LexicalValue><![CDATA[ (1) The detection limit is sometimes defined as an output signal equal to some other multiple (e.g., two or ten) of the noise level [2]. The noise level is the random background output signal of an instrument when sampling a blank or clean filtered air. (2) In this Document, the concentration of an airborne pollutant in either a gas or vapor phase is most often expressed in terms of the volume fraction of the pollutant in air: parts- per-million (ppm) [v/v (10-6)]. Conditions of ]]> </LexicalValue></ScopeNote><HasHierRelConcept Role="BT">https://digilab.ptb.de/oiml-g-18/vocab/skos/2</HasHierRelConcept></ThesaurusConcept></Thesaurus>