@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:t10-30>
  a isq:Entry ;
  rdf:type isq:Quantity ;
  rdf:type smart:TermEntry ;
  dcterms:identifier "10-30" ;
  skosxl:prefLabel "surface-activity density"@en ;
  skosxl:altLabel "a_\"S\""@en ;
  skos:definition "quotient of the activity stem:[A] (<<t10-27>>) of a sample and the total area stem:[S] (<<iso80000-3>>) of the surface of that sample:\n\n[stem%unnumbered]\n++++\na_\"S\" = A//S\n++++\n"@en ;
  smart:hasBindingnessType "bindingness-type:normative" ;
  dcterms:isPartOf <isq:part-10> ;
  isq:hasUnit [
    skos:notation "Bq/m^2" ;
    skosxl:prefLabel "becquerel per square metre"@en
  ] ;
  isq:hasUnit [
    skos:notation "m^(-2)*s^(-1)" ;
    skosxl:prefLabel "per square metre second"@en
  ] ;
  skos:note "This value is usually defined for flat sources, where stem:[S] corresponds to the total area of surface of one side of the source."@en ;
  iso:urn <urn:iso:std:iso:80000:-10:ed-2:en:item:10-30> .