@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:t7-35.1>
  a isq:Entry ;
  rdf:type isq:Quantity ;
  rdf:type smart:TermEntry ;
  dcterms:identifier "7-35.1" ;
  skosxl:prefLabel "linear attenuation coefficient"@en ;
  skosxl:altLabel "linear extinction coefficient <radiometry>"@en ;
  skosxl:altLabel "mu"@en ;
  skosxl:altLabel "mu_\"l\""@en ;
  skos:definition "relative decrease in radiant flux caused by absorption and scattering"@en ;
  smart:hasBindingnessType "bindingness-type:normative" ;
  dcterms:isPartOf <isq:part-7> ;
  isq:hasUnit [
    skos:notation "m^(-1)" ;
    skosxl:prefLabel "per metre"@en
  ] ;
  skos:note "This quantity is also defined spectrally in terms of wavelength, in which case, \"spectral\" is added before this quantity name.\n\nThe spectral linear attenuation coefficient can be expressed by the relative decrease in the spectral radiant flux, stem:[Phi_(\"e\",lambda)(lambda)], with respect to propagation length, stem:[l], of a collimated beam at a point in an absorbing and scattering medium\n\n[stem%unnumbered]\n++++\nmu(lambda) = 1/(Phi_(\"e\",lambda)(lambda)) (\"d\"Phi_(\"e\",lambda)(lambda))/(\"d\"l)\n++++\n\nSimilarly, luminous and photon quantities can be defined.\n"@en ;
  iso:urn <urn:iso:std:iso:80000:-7:ed-2:en:item:7-35.1> .