@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::TOOL0441" ; dc:date "2011-11-16 08:14:57.0" ; dc:identifier "SDN:L22::TOOL0441" ; dc:isVersionOf ; pav:authoredOn "2011-11-16 08:14:57.0" ; pav:version "1" ; void:inDataset ; owl:deprecated "false" ; owl:versionInfo "1" ; skos:altLabel "LISST 100-B" ; skos:broader , , , ; skos:definition "A self-contained unit which measures the scattering of LASER light at a number of angles. This primary measurement is mathematically inverted to give a grain size distribution, and also scaled to obtain the volume scattering function. The size distribution is presented as concentration in each of the grain-size class bins. The instrument has an optical path length of 5cm as standard (2.5cm optional) and measures particles over the size range 1.2 - 250um in 32 log-spaced size classes. The standard maximum sampling speed is 4 size distributions per second and the instrument has a depth rating of 300m. Optical transmission, water depth and temperature are recorded as supporting measurements."@en ; skos:notation "SDN:L22::TOOL0441" ; skos:note "accepted"@en ; skos:prefLabel "Sequoia Laser In-Situ Sediment Size Transmissometer model 100-B"@en ; skos:related .