@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:t7-32.1>
  a isq:Entry ;
  rdf:type isq:Quantity ;
  rdf:type smart:TermEntry ;
  dcterms:identifier "7-32.1" ;
  skosxl:prefLabel "transmittance optical density"@en ;
  skosxl:altLabel "optical density"@en ;
  skosxl:altLabel "transmittance density"@en ;
  skosxl:altLabel "decadic absorbance"@en ;
  skosxl:altLabel "D"@en ;
  skosxl:altLabel "A_(10)"@en ;
  skosxl:altLabel "D_tau"@en ;
  skos:definition "logarithm to base 10 of the reciprocal of the transmittance, stem:[tau] (<<t7-31.5>>)"@en ;
  smart:hasBindingnessType "bindingness-type:normative" ;
  dcterms:isPartOf <isq:part-7> ;
  isq:hasUnit [
    skos:notation "1" ;
    skosxl:prefLabel "one"@en
  ] ;
  skos:note "If defined in terms of wavelength, the optical density can be expressed by\n\n[stem%unnumbered]\n++++\nA_(10)(lambda) = -\"lg\"[tau(lambda)]\n++++\n\nwhere stem:[tau(lambda)] is the transmittance (<<t7-31.5>>) in terms of wavelength.\n\nIn spectroscopy, the name \"absorbance stem:[A_(10)]\" is generally used.\n"@en ;
  iso:urn <urn:iso:std:iso:80000:-7:ed-2:en:item:7-32.1> .