@prefix dc: <http://purl.org/dc/terms/> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix cast: <http://onto.nerc.ac.uk/CAST/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

dc:creator rdfs:label "Creator" .
dc:created rdfs:label "Created" .
dc:contributor rdfs:label "Contributor" .
dc:modified rdfs:label "Modified" .
cast:146
  a skos:Concept ;
  dc:contributor "dgwr" ;
  dc:created "2010-12-15T15:56:34Z"^^xsd:dateTime ;
  dc:creator "dgwr" ;
  dc:modified "2019-05-09T16:00:18.197+00:00"^^xsd:dateTime ;
  skos:altLabel "pH meter"@en ;
  skos:broader cast:3 ;
  skos:definition "Machines measuring the minus natural log of hydrogen ion activity"@en ;
  skos:exactMatch <http://vocab.nerc.ac.uk/collection/L05/current/355/> ;
  skos:narrower cast:257, cast:147, cast:148 ;
  skos:prefLabel "pH meters"@en ;
  skos:related cast:177 .

<http://vocab.nerc.ac.uk/collection/L05/current/355/> skos:exactMatch cast:146 .
cast:257
  a skos:Concept ;
  skos:broader cast:146 ;
  skos:prefLabel "WVW pH meter and electrode"@en .

cast:3
  a skos:Concept ;
  skos:narrower cast:146 ;
  skos:prefLabel "machine descriptions"@en .

cast:147
  a skos:Concept ;
  skos:broader cast:146 ;
  skos:prefLabel "Metrohm pH meter and electrode"@en .

cast:148
  a skos:Concept ;
  skos:broader cast:146 ;
  skos:prefLabel "Radiometer pH meter and electrode"@en .

cast:177
  a skos:Concept ;
  skos:prefLabel "electrometric pH determination"@en ;
  skos:related cast:146 .