@prefix cpm: . @prefix dc: . @prefix dcat: . @prefix dce: . @prefix dct: . @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 semapv: . @prefix skos: . @prefix sssom: . @prefix void: . skos:altLabel "UMA 4-stage CCI" , "UMA 4-stage CCI"@en ; skos:broader , ; skos:definition "An aerosol sampler modelled on the Harvard Compact Cascade Impactor. Sample air is accelerated through an orifice towards a collector plate, which deflects the airflow around it. Particles too large to follow the streamlines impact on the plate. The air stream, now with the largest particles removed, proceeds to the subsequent impactor stages, each tuned to collect successively smaller particles. The four stages collect particles in the following size categories: greater than 9.9 um; 5.3-9.9 um; 1.0-5.3 um; 0.16-1.0 um."@en ; skos:inScheme ; skos:notation "SDN:L22::TOOL0554" ; skos:note "accepted"@en ; skos:prefLabel "University of Manchester 4-stage Compact Cascade Impactor"@en ; skos:related . skos:member . skos:related . skos:narrower . skos:narrower . skos:related . skos:narrower . skos:narrower .