@prefix cpm: . @prefix dc: . @prefix dcat: . @prefix dce: . @prefix dct: . @prefix dcterms: . @prefix grg: . @prefix iop: . @prefix ns0: . @prefix ns1: . @prefix owl: . @prefix pav: . @prefix prov: . @prefix puv: . @prefix qudt: . @prefix rdf: . @prefix rdfs: . @prefix reg: . @prefix sdo: . @prefix semapv: . @prefix skos: . @prefix sssom: . @prefix void: . @prefix xsd: . rdf:type sdo:DefinedTerm ; sdo:description "An instrument that measures size-resolved aerosol abundances in the atmosphere. The ambient air sample is size-classified by a Differential Mobility Analyser, then counted by an Optical Particle Counter. The sample exits the OPC and is deposited on a PTFE filter. The filter may be removed for subsequent, bulk gravimetric or chemical analysis." ; sdo:inDefinedTermSet ; sdo:name "GRIMM 1.108 Optical Particle Counter"@en ; sdo:termCode "TOOL0299" .