@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:t7-30.2>
  a isq:Entry ;
  rdf:type isq:Quantity ;
  rdf:type smart:TermEntry ;
  dcterms:identifier "7-30.2" ;
  skosxl:prefLabel "emissivity at a specified wavelength"@en ;
  skosxl:altLabel "epsilon(lambda)"@en ;
  skos:definition "quotient of the radiant exitance of a radiator at a specified wavelength and the radiant exitance of a Planckian radiator at the same temperature and at the same wavelength, expressed by\n\n[stem%unnumbered]\n++++\nepsilon(lambda) = M(lambda) // M_\"b\"(lambda)\n++++\n\nwhere stem:[M(lambda)] is the radiant exitance (<<t7-8.1>>) of a thermal radiator at a specified wavelength and stem:[M_\"b\"(lambda)] is the radiant exitance of a Planckian radiator at the same temperature at a specified wavelength (<<iso80000-3>>)\n"@en ;
  smart:hasBindingnessType "bindingness-type:normative" ;
  dcterms:isPartOf <isq:part-7> ;
  isq:hasUnit [
    skos:notation "1" ;
    skosxl:prefLabel "one"@en
  ] ;
  iso:urn <urn:iso:std:iso:80000:-7:ed-2:en:item:7-30.2> .