@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix mi: <https://taxonomy.materialinstruments.com/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://taxonomy.materialinstruments.com/id/material/polystyrene>
  a skos:Concept ;
  skos:inScheme <https://taxonomy.materialinstruments.com/id/axis/material> ;
  skos:prefLabel "Polystyrene"@en ;
  skos:definition "A thermoplastic polymer of styrene monomer."@en ;
  skos:altLabel "Poly Styrene"@en ;
  skos:hiddenLabel "Poly Styrene"@en ;
  skos:broader <https://taxonomy.materialinstruments.com/id/material/plastic> ;
  skos:exactMatch <https://taxonomy.materialinstruments.com/ns/iso-1043-1/PS> ;
  skos:closeMatch <http://www.wikidata.org/entity/Q146243> ;
  skos:notation "PS"^^<https://taxonomy.materialinstruments.com/ns/iso-1043-1> ;
  skos:notation "Ma_60_65_85"^^<https://taxonomy.materialinstruments.com/ns/uniclass> ;
  mi:sourceBasis "referenced" ;
  dcterms:source "composition dictionary in a materials-retrieval system (src-05); ISO 1043-1:2011+Amd 1:2016" ;
  dcterms:date "2026-09-22" ;
  mi:status "active" .