Work in progress

<rdf:RDF
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:j.0="http://qudt.org/schema/qudt/"
    xmlns:owl="http://www.w3.org/2002/07/owl#"
    xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > 
  <rdf:Description rdf:about="http://qudt.org/vocab/unit/NanoGM-PER-L">
    <rdf:type rdf:resource="http://qudt.org/schema/qudt/Unit"/>
    <j.0:hasQuantityKind rdf:resource="http://qudt.org/vocab/quantitykind/Density"/>
    <j.0:applicableSystem rdf:resource="http://qudt.org/vocab/sou/CGS-EMU"/>
    <rdfs:label xml:lang="nl">Nanogram per Liter</rdfs:label>
    <j.0:hasDimensionVector rdf:resource="http://qudt.org/vocab/dimensionvector/A0E0L-3I0M1H0T0D0"/>
    <j.0:hasFactorUnit rdf:nodeID="A0"/>
    <j.0:hasQuantityKind rdf:resource="http://qudt.org/vocab/quantitykind/MassConcentration"/>
    <rdfs:isDefinedBy rdf:resource="http://qudt.org/3.1.0/vocab/unit"/>
    <j.0:symbol>ng/L</j.0:symbol>
    <j.0:applicableSystem rdf:resource="http://qudt.org/vocab/sou/CGS"/>
    <j.0:applicableSystem rdf:resource="http://qudt.org/vocab/sou/CGS-GAUSS"/>
    <j.0:hasQuantityKind rdf:resource="http://qudt.org/vocab/quantitykind/MassDensity"/>
    <j.0:conversionMultiplierSN rdf:datatype="http://www.w3.org/2001/XMLSchema#double">1.0E-9</j.0:conversionMultiplierSN>
    <j.0:hasFactorUnit rdf:nodeID="A1"/>
    <j.0:conversionMultiplier rdf:datatype="http://www.w3.org/2001/XMLSchema#decimal">0.000000001</j.0:conversionMultiplier>
    <j.0:ucumCode rdf:datatype="http://qudt.org/schema/qudt/UCUMcs">ng/L</j.0:ucumCode>
    <rdfs:label xml:lang="en">Nanogram per Litre</rdfs:label>
    <j.0:applicableSystem rdf:resource="http://qudt.org/vocab/sou/SI"/>
    <j.0:ucumCode rdf:datatype="http://qudt.org/schema/qudt/UCUMcs">ng.L-1</j.0:ucumCode>
  </rdf:Description>
</rdf:RDF>

@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<http://qudt.org/vocab/unit/NanoGM-PER-L>
  rdf:type <http://qudt.org/schema/qudt/Unit> ;
  <http://qudt.org/schema/qudt/applicableSystem> <http://qudt.org/vocab/sou/CGS> ;
  <http://qudt.org/schema/qudt/applicableSystem> <http://qudt.org/vocab/sou/CGS-EMU> ;
  <http://qudt.org/schema/qudt/applicableSystem> <http://qudt.org/vocab/sou/CGS-GAUSS> ;
  <http://qudt.org/schema/qudt/applicableSystem> <http://qudt.org/vocab/sou/SI> ;
  <http://qudt.org/schema/qudt/conversionMultiplier> 0.000000001 ;
  <http://qudt.org/schema/qudt/conversionMultiplierSN> 1.0E-9 ;
  <http://qudt.org/schema/qudt/hasDimensionVector> <http://qudt.org/vocab/dimensionvector/A0E0L-3I0M1H0T0D0> ;
  <http://qudt.org/schema/qudt/hasFactorUnit> [] ;
  <http://qudt.org/schema/qudt/hasFactorUnit> [] ;
  <http://qudt.org/schema/qudt/hasQuantityKind> <http://qudt.org/vocab/quantitykind/Density> ;
  <http://qudt.org/schema/qudt/hasQuantityKind> <http://qudt.org/vocab/quantitykind/MassConcentration> ;
  <http://qudt.org/schema/qudt/hasQuantityKind> <http://qudt.org/vocab/quantitykind/MassDensity> ;
  <http://qudt.org/schema/qudt/symbol> "ng/L" ;
  <http://qudt.org/schema/qudt/ucumCode> "ng.L-1"^^<http://qudt.org/schema/qudt/UCUMcs> ;
  <http://qudt.org/schema/qudt/ucumCode> "ng/L"^^<http://qudt.org/schema/qudt/UCUMcs> ;
  rdfs:isDefinedBy <http://qudt.org/3.1.0/vocab/unit> ;
  rdfs:label "Nanogram per Liter"@nl ;
  rdfs:label "Nanogram per Litre"@en ;
.

{"resource":"Nanogram per Litre" 
 ,"qname":"unit:NanoGM-PER-L" 
 ,"uri":"http:\/\/qudt.org\/vocab\/unit\/NanoGM-PER-L" 
 ,"properties":["applicable system":"sou:CGS" 
    ,"applicable system":"sou:CGS-EMU" 
    ,"applicable system":"sou:CGS-GAUSS" 
    ,"applicable system":"sou:SI" 
    ,"conversion multiplier":"0.000000001" 
    ,"conversion multiplier scientific":"1.0E-9" 
    ,"has dimension vector":"dimension:A0E0L-3I0M1H0T0D0" 
    ,"has quantity kind":"quantitykind:Density" 
    ,"has quantity kind":"quantitykind:MassConcentration" 
    ,"has quantity kind":"quantitykind:MassDensity" 
    ,"hasFactorUnit":null 
    ,"hasFactorUnit":null 
    ,"isDefinedBy":"<http:\/\/qudt.org\/3.1.0\/vocab\/unit>" 
    ,"label":"Nanogram per Liter" 
    ,"label":"Nanogram per Litre" 
    ,"symbol":"ng\/L" 
    ,"type":"qudt:Unit" 
    ,"ucum code":"ng.L-1" 
    ,"ucum code":"ng\/L" 
    ]}

{
  "@id" : "http://qudt.org/vocab/unit/NanoGM-PER-L",
  "@type" : "http://qudt.org/schema/qudt/Unit",
  "applicableSystem" : [ "http://qudt.org/vocab/sou/CGS-EMU", "http://qudt.org/vocab/sou/CGS", "http://qudt.org/vocab/sou/CGS-GAUSS", "http://qudt.org/vocab/sou/SI" ],
  "conversionMultiplier" : "0.000000001",
  "conversionMultiplier:SN" : 1.0E-9,
  "hasDimensionVector" : "http://qudt.org/vocab/dimensionvector/A0E0L-3I0M1H0T0D0",
  "hasFactorUnit" : [ "_:b0", "_:b1" ],
  "hasQuantityKind" : [ "http://qudt.org/vocab/quantitykind/Density", "http://qudt.org/vocab/quantitykind/MassConcentration", "http://qudt.org/vocab/quantitykind/MassDensity" ],
  "symbol" : "ng/L",
  "ucumCode" : [ "ng/L", "ng.L-1" ],
  "isDefinedBy" : "http://qudt.org/3.1.0/vocab/unit",
  "label" : [ {
    "@language" : "nl",
    "@value" : "Nanogram per Liter"
  }, {
    "@language" : "en",
    "@value" : "Nanogram per Litre"
  } ],
  "@context" : {
    "hasQuantityKind" : {
      "@id" : "http://qudt.org/schema/qudt/hasQuantityKind",
      "@type" : "@id"
    },
    "applicableSystem" : {
      "@id" : "http://qudt.org/schema/qudt/applicableSystem",
      "@type" : "@id"
    },
    "label" : {
      "@id" : "http://www.w3.org/2000/01/rdf-schema#label"
    },
    "hasDimensionVector" : {
      "@id" : "http://qudt.org/schema/qudt/hasDimensionVector",
      "@type" : "@id"
    },
    "hasFactorUnit" : {
      "@id" : "http://qudt.org/schema/qudt/hasFactorUnit",
      "@type" : "@id"
    },
    "isDefinedBy" : {
      "@id" : "http://www.w3.org/2000/01/rdf-schema#isDefinedBy",
      "@type" : "@id"
    },
    "symbol" : {
      "@id" : "http://qudt.org/schema/qudt/symbol"
    },
    "conversionMultiplierSN" : {
      "@id" : "http://qudt.org/schema/qudt/conversionMultiplierSN",
      "@type" : "http://www.w3.org/2001/XMLSchema#double"
    },
    "conversionMultiplier" : {
      "@id" : "http://qudt.org/schema/qudt/conversionMultiplier",
      "@type" : "http://www.w3.org/2001/XMLSchema#decimal"
    },
    "ucumCode" : {
      "@id" : "http://qudt.org/schema/qudt/ucumCode",
      "@type" : "http://qudt.org/schema/qudt/UCUMcs"
    },
    "rdf" : "http://www.w3.org/1999/02/22-rdf-syntax-ns#",
    "owl" : "http://www.w3.org/2002/07/owl#",
    "xsd" : "http://www.w3.org/2001/XMLSchema#",
    "rdfs" : "http://www.w3.org/2000/01/rdf-schema#"
  }
}