@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:member . skos:narrower . skos:altLabel "Apstein HSS" , "Apstein HSS"@en ; skos:broader , ; skos:definition "Construction is a cylindrical tube with ~2 cm diameter mouth opening expanding to 4 cm diameter in the main body with a filtering surface at the rear. Overall length ~20 cm [Wiebe and Benfield 2003 Plate 13 A]."@en ; skos:inScheme ; skos:notation "SDN:L22::NETT0002" ; skos:note "accepted"@en ; skos:prefLabel "High-speed sampler - Apstein (1906)"@en . skos:narrower . skos:narrower . skos:narrower .