@prefix isq: <https://w3id.org/standards/isq/ontologies/core/> .
@prefix smart: <https://example.org/smart-sdu/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

<isq:t8-15>
  a isq:Entry ;
  rdf:type isq:Quantity ;
  rdf:type smart:TermEntry ;
  dcterms:identifier "8-15" ;
  skosxl:prefLabel "sound power level"@en ;
  skosxl:altLabel "L_P"@en ;
  skosxl:altLabel "L_W"@en ;
  skos:definition "quantity given by:\n\n[stem%unnumbered]\n++++\nL_P = 10 \"lg\" P_\"m\"/P_0 \" dB\"\n++++\n\nwhere stem:[P_\"m\"] is the magnitude of the time-averaged sound power (<<t8-9>>) and stem:[P_0] is the reference value of sound power\n"@en ;
  smart:hasBindingnessType "bindingness-type:normative" ;
  dcterms:isPartOf <isq:part-8> ;
  isq:hasUnit [
    skos:notation stem:["dB"] ;
    skosxl:prefLabel "decibel"@en
  ] ;
  skos:note "The reference value of sound power is given by stem:[P_0 = 1 \"unitsml(pW)\"]. When stating a value of sound power level, the reference value shall be specified.\n\nThe value of sound power level depends on the selected frequency range and time duration. When stating a value of sound power level, the frequency range and time duration shall be specified.\n\nIn accordance with <<iso80000-1>>, any attachment to the unit symbol as a means of giving information about the special nature of the quantity or context of measurement under consideration is not permitted. If specific frequency and time weightings as specified in <<iec61672-1>> or specific frequency bands or time duration are applied, this should be indicated by appropriate subscripts to the quantity symbol.\n"@en ;
  iso:urn <urn:iso:std:iso:80000:-8:ed-1:en:item:8-15> .