@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix prefix: <http://qudt.org/vocab/prefix/> .
@prefix prov: <http://www.w3.org/ns/prov#> .
@prefix qkdv: <http://qudt.org/vocab/dimensionvector/> .
@prefix quantitykind: <http://qudt.org/vocab/quantitykind/> .
@prefix qudt: <http://qudt.org/schema/qudt/> .
@prefix si-unit: <https://si-digital-framework.org/SI/units/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix sou: <http://qudt.org/vocab/sou/> .
@prefix unit: <http://qudt.org/vocab/unit/> .
@prefix vaem: <http://www.linkedmodel.org/schema/vaem#> .
@prefix voag: <http://voag.linkedmodel.org/schema/voag#> .

unit:DeciB
  a qudt:DimensionlessUnit, qudt:LogarithmicUnit, qudt:Unit ;
  dcterms:description "A customary logarithmic measure most commonly used (in various ways) for measuring sound.Sound is measured on a logarithmic scale. Informally, if one sound is $1\\,bel$ (10 decibels) \"louder\" than another, this means the louder sound is 10 times louder than the fainter one. A difference of 20 decibels corresponds to an increase of 10 x 10 or 100 times in intensity. The beginning of the scale, 0 decibels, can be set in different ways, depending on exactly the aspect of sound being measured. For sound intensity (the power of the sound waves per unit of area) $0\\,decibel$ is equal to $1\\,picoWatts\\,per\\,Metre\\,Squared$. This corresponds approximately to the faintest sound that can be detected by a person who has good hearing. For sound pressure (the pressure exerted by the sound waves) 0 decibels equals $20\\,micropascals\\,RMS$, and for sound power $0\\,decibels$ sometimes equals $1\\,picoWatt$. In all cases, one decibel equals $\\approx\\,0.115129\\,neper$."^^qudt:LatexString ;
  qudt:applicableSystem sou:ASU ;
  qudt:applicableSystem sou:CGS ;
  qudt:applicableSystem sou:CGS-EMU ;
  qudt:applicableSystem sou:CGS-ESU ;
  qudt:applicableSystem sou:CGS-GAUSS ;
  qudt:applicableSystem sou:IMPERIAL ;
  qudt:applicableSystem sou:PLANCK ;
  qudt:applicableSystem sou:SI ;
  qudt:conversionMultiplier 0.0 ;
  qudt:conversionMultiplierSN 0.0E0 ;
  qudt:dbpediaMatch "http://dbpedia.org/resource/Decibel"^^xsd:anyURI ;
  qudt:hasDimensionVector qkdv:A0E0L0I0M0H0T0D1 ;
  qudt:hasQuantityKind quantitykind:SoundExposureLevel ;
  qudt:hasQuantityKind quantitykind:SoundPowerLevel ;
  qudt:hasQuantityKind quantitykind:SoundPressureLevel ;
  qudt:hasQuantityKind quantitykind:SoundReductionIndex ;
  qudt:iec61360Code "0112/2///62720#UAA409" ;
  qudt:informativeReference "https://cdd.iec.ch/cdd/iec62720/iec62720.nsf/Units/0112-2---62720%23UAA409"^^xsd:anyURI ;
  qudt:informativeReference "https://en.wikipedia.org/wiki/Decibel?oldid=495380648"^^xsd:anyURI ;
  qudt:symbol "dB" ;
  qudt:ucumCode "dB"^^qudt:UCUMcs ;
  qudt:uneceCommonCode "2N" ;
  qudt:wikidataMatch <http://www.wikidata.org/entity/Q5329> ;
  rdfs:isDefinedBy <http://qudt.org/3.2.1/vocab/unit> ;
  rdfs:label "Decibel" ;
  rdfs:label "Decibel"@en .