@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: . rdf:type skos:Concept ; dce:identifier "SDN:L22::TOOL0505" ; dc:date "2012-06-21 16:09:48.0" ; dc:identifier "SDN:L22::TOOL0505" ; pav:authoredOn "2012-06-21 16:09:48.0" ; pav:hasCurrentVersion ; pav:version "1" ; void:inDataset ; owl:deprecated "false" ; owl:versionInfo "1" ; skos:altLabel "Knudsen bottle" , "Knudsen bottle"@en ; skos:broader , ; skos:definition "A frameless reversing water bottle with reversing thermometers that is used to collect water samples. The bottom of the bottle is clamped to a wire and the top of the bottle is held to the wire by a catch. It has independent hinged lids at each end which are held open against an internal spring when the bottle is deployed. Once the bottle has reached the target depth a messenger is dropped down the wire and hits the catch. The lids close and the bottle falls through 180deg, pivoting on the bottom clamp. This action reversed the thermometers, which are housed in a frame attached to the bottle."@en ; skos:inScheme ; skos:notation "SDN:L22::TOOL0505" ; skos:note "accepted"@en ; skos:prefLabel "Knudsen reversing water bottle"@en ; skos:related .