@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:t9-1>
  a isq:Entry ;
  rdf:type isq:Quantity ;
  rdf:type smart:TermEntry ;
  dcterms:identifier "9-1" ;
  skosxl:prefLabel "number of entities"@en ;
  skosxl:altLabel "N(X)"@en ;
  skosxl:altLabel "N_\"X\""@en ;
  skos:definition "number of elementary entities of kind stem:[\"X\"] in a system"@en ;
  smart:hasBindingnessType "bindingness-type:normative" ;
  dcterms:isPartOf <isq:part-9> ;
  isq:hasUnit [
    skos:notation "1" ;
    skosxl:prefLabel "one"@en
  ] ;
  skos:note "The elementary entities must be specified and can be atoms, molecules, ions, electrons, other particle, or a specified group of such particles. It is important to always give a precise specification of the entity involved; this should preferably be done by the empirical chemical formula of the material involved."@en ;
  iso:urn <urn:iso:std:iso:80000:-9:ed-2:en:item:9-1> .