@prefix dc: . @prefix rdfs: . @prefix cast: . @prefix skos: . @prefix xsd: . dc:contributor rdfs:label "Contributor" . cast:1 skos:prefLabel "determinands"@en ; a skos:Concept ; skos:narrower cast:64 . cast:64 dc:creator "dgwr" ; skos:altLabel "total acid recoverable potassium"@en, "total acid available potassium"@en, "dissolved plus acid recoverable potassium"@en, "total K"@en ; skos:broader cast:1 ; dc:created "2010-12-10T16:28:26Z"^^xsd:dateTime ; skos:narrower cast:65 ; dc:contributor "dgwr" ; dc:modified "2019-05-09T16:00:18.197+00:00"^^xsd:dateTime ; skos:prefLabel "acid recoverable potassium"@en ; a skos:Concept ; skos:definition "Total acid recoverable potassium, includes dissolved fraction plus that which was present in particulates but dissolved by acidification of the unfiltered sample to 1% with concentrated high purity nitric acid, without heating. This acidification takes place upon sampling and prior to cold storage and subsequent analysis."@en . dc:modified rdfs:label "Modified" . dc:created rdfs:label "Created" . cast:65 skos:prefLabel "dissolved potassium"@en ; a skos:Concept ; skos:broader cast:64 . dc:creator rdfs:label "Creator" .