@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:P07::CF12N299" ; dc:date "2015-01-07 16:23:38.0" ; dc:identifier "SDN:P07::CF12N299" ; pav:authoredOn "2015-01-07 16:23:38.0" ; pav:hasCurrentVersion ; pav:hasVersion , ; pav:version "3" ; void:inDataset ; owl:deprecated "false" ; owl:sameAs , ; owl:versionInfo "3" ; skos:altLabel "" ; skos:broader , ; skos:definition "Mass concentration means mass per unit volume and is used in the construction mass_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as \"nitrogen\" or a phrase such as \"nox_expressed_as_nitrogen\". The phrase \"expressed_as\" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. \"nmvoc\" means non methane volatile organic compounds; \"nmvoc\" is the term used in standard names to describe the group of chemical species having this classification that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute."@en ; skos:notation "SDN:P07::CF12N299" ; skos:note "accepted"@en ; skos:prefLabel "mass_concentration_of_nmvoc_expressed_as_carbon_in_air"@en ; skos:related .