@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 constant: <http://qudt.org/vocab/constant/> .
@prefix dc: <http://purl.org/dc/elements/1.1/> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@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-quantity: <https://si-digital-framework.org/quantities/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix unit: <http://qudt.org/vocab/unit/> .
@prefix vaem: <http://www.linkedmodel.org/schema/vaem#> .
@prefix voag: <http://voag.linkedmodel.org/schema/voag#> .

quantitykind:SoundPressureLevel
  a qudt:QuantityKind ;
  dcterms:description "Sound pressure level ($SPL$) or sound level is a logarithmic measure of the effective sound pressure of a sound relative to a reference value. It is measured in decibels (dB) above a standard reference level."^^qudt:LatexString ;
  qudt:applicableUnit unit:B ;
  qudt:applicableUnit unit:DeciB ;
  qudt:applicableUnit unit:DeciB_A ;
  qudt:applicableUnit unit:DeciB_ISO ;
  qudt:applicableUnit unit:DeciB_M ;
  qudt:applicableUnit unit:DeciB_Z ;
  qudt:applicableUnit unit:PHON ;
  qudt:hasDimensionVector qkdv:A0E0L0I0M0H0T0D1 ;
  qudt:informativeReference "https://en.wikipedia.org/wiki/Sound_pressure#Sound_pressure_level"^^xsd:anyURI ;
  qudt:latexDefinition "$L_P = 10 \\log_{10} \\frac{p^2}{p_0^2} dB$, where $p$ is sound pressure and the reference value in airborne acoustics is $p_0 = 20 \\mu Pa$."^^qudt:LatexString ;
  qudt:symbol "L" ;
  qudt:wikidataMatch <http://www.wikidata.org/entity/Q14515278> ;
  rdfs:comment "Applicable units are those of quantitykind:SoundPressureLevel" ;
  rdfs:isDefinedBy <http://qudt.org/3.2.1/vocab/quantitykind> ;
  rdfs:label "Hladina akustického tlaku"@cs ;
  rdfs:label "Schalldruckpegel"@de ;
  rdfs:label "Tahap medan"@ms ;
  rdfs:label "gerilim veya akım oranı"@tr ;
  rdfs:label "livello di pressione sonora"@it ;
  rdfs:label "miary wielkości ilorazowych"@pl ;
  rdfs:label "niveau de pression acoustique"@fr ;
  rdfs:label "nivel de presión sonora"@es ;
  rdfs:label "nível de pressão acústica"@pt ;
  rdfs:label "sound pressure level"@en ;
  rdfs:label "уровень звукового давления"@ru ;
  rdfs:label "سطح یک کمیت توان-ریشه"@fa ;
  rdfs:label "كمية جذر الطاقة"@ar ;
  rdfs:label "利得"@ja ;
  rdfs:label "声压级"@zh ;
  skos:altLabel "Tahap tekanan bunyi"@ms ;
  vaem:todo "belongs to SOQ-ISO" .