@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:t7-8.1>
  a isq:Entry ;
  rdf:type isq:Quantity ;
  rdf:type smart:TermEntry ;
  dcterms:identifier "7-8.1" ;
  skosxl:prefLabel "radiant exitance"@en ;
  skosxl:altLabel "DEPRECATED: radiant emittance"@en ;
  skosxl:altLabel "M_\"e\""@en ;
  skosxl:altLabel "(M)"@en ;
  skos:definition "density of exiting radiant flux with respect to area at a point on a real or imaginary surface, expressed by\n\n[stem%unnumbered]\n++++\nM_\"e\" = (\"d\"Phi_\"e\")/(\"d\"A)\n++++\n\nwhere stem:[Phi_\"e\"] is radiant flux (<<t7-4.1>>) and stem:[A] is the area (<<iso80000-3>>) from which the radiant flux leaves\n"@en ;
  smart:hasBindingnessType "bindingness-type:normative" ;
  dcterms:isPartOf <isq:part-7> ;
  isq:hasUnit [
    skos:notation "W/m^2" ;
    skosxl:prefLabel "watt per square metre"@en
  ] ;
  isq:hasUnit [
    skos:notation "kg*s^(-3)" ;
    skosxl:prefLabel "kilogram per second cubed"@en
  ] ;
  skos:note "For Planckian radiation, stem:[M_\"e\" = sigma T^4] where stem:[T] is thermodynamic temperature (<<iso80000-5>>) and stem:[sigma] is the Stefan-Boltzmann constant (<<iso80000-1>>).\n\nThe corresponding photometric quantity is \"luminous exitance\" (<<t7-17>>). The corresponding quantity for photons is \"photon exitance\" (<<t7-24>>).\n"@en ;
  iso:urn <urn:iso:std:iso:80000:-7:ed-2:en:item:7-8.1> .