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:j.1="http://purl.org/dc/terms/"
    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/PERM_US">
    <j.0:applicableSystem rdf:resource="http://qudt.org/vocab/sou/USCS"/>
    <j.0:conversionMultiplierSN rdf:datatype="http://www.w3.org/2001/XMLSchema#double">5.72135E-11</j.0:conversionMultiplierSN>
    <j.0:symbol>perm{US}</j.0:symbol>
    <j.0:informativeReference rdf:datatype="http://www.w3.org/2001/XMLSchema#anyURI">https://en.wikipedia.org/wiki/Perm_(unit)</j.0:informativeReference>
    <rdf:type rdf:resource="http://qudt.org/schema/qudt/Unit"/>
    <j.0:conversionMultiplier rdf:datatype="http://www.w3.org/2001/XMLSchema#decimal">0.0000000000572135</j.0:conversionMultiplier>
    <j.0:hasQuantityKind rdf:resource="http://qudt.org/vocab/quantitykind/VaporPermeance"/>
    <rdfs:label xml:lang="en">U.S. Perm</rdfs:label>
    <j.1:description xml:lang="en">A perm is a unit of permeance or "water vapor transmission" given a certain differential in partial pressures on either side of a material or membrane. The U.S. perm is defined as 1 grain of water vapor per hour, per square foot, per inch of mercury.</j.1:description>
    <rdfs:isDefinedBy rdf:resource="http://qudt.org/2.1/vocab/unit"/>
    <j.0:hasDimensionVector rdf:resource="http://qudt.org/vocab/dimensionvector/A0E0L-1I0M0H0T1D0"/>
  </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/PERM_US>
  rdf:type <http://qudt.org/schema/qudt/Unit> ;
  <http://purl.org/dc/terms/description> "A perm is a unit of permeance or \"water vapor transmission\" given a certain differential in partial pressures on either side of a material or membrane. The U.S. perm is defined as 1 grain of water vapor per hour, per square foot, per inch of mercury."@en ;
  <http://qudt.org/schema/qudt/applicableSystem> <http://qudt.org/vocab/sou/USCS> ;
  <http://qudt.org/schema/qudt/conversionMultiplier> 0.0000000000572135 ;
  <http://qudt.org/schema/qudt/conversionMultiplierSN> 5.72135E-11 ;
  <http://qudt.org/schema/qudt/hasDimensionVector> <http://qudt.org/vocab/dimensionvector/A0E0L-1I0M0H0T1D0> ;
  <http://qudt.org/schema/qudt/hasQuantityKind> <http://qudt.org/vocab/quantitykind/VaporPermeance> ;
  <http://qudt.org/schema/qudt/informativeReference> "https://en.wikipedia.org/wiki/Perm_(unit)"^^xsd:anyURI ;
  <http://qudt.org/schema/qudt/symbol> "perm{US}" ;
  rdfs:isDefinedBy <http://qudt.org/2.1/vocab/unit> ;
  rdfs:label "U.S. Perm"@en ;
.

{"resource":"U.S. Perm" 
 ,"qname":"unit:PERM_US" 
 ,"uri":"http:\/\/qudt.org\/vocab\/unit\/PERM_US" 
 ,"properties":["applicable system":"sou:USCS" 
    ,"conversion multiplier":"0.0000000000572135" 
    ,"conversion multiplier scientific":"5.72135E-11" 
    ,"description":"A perm is a unit of permeance or \"water vapor transmission\" given a certain differential in partial pressures on either side of a material or membrane. The U.S. perm is defined as 1 grain of water vapor per hour, per square foot, per inch of mercury." 
    ,"has dimension vector":"dimension:A0E0L-1I0M0H0T1D0" 
    ,"has quantity kind":"quantitykind:VaporPermeance" 
    ,"informative reference":"https:\/\/en.wikipedia.org\/wiki\/Perm_(unit)" 
    ,"isDefinedBy":"<http:\/\/qudt.org\/2.1\/vocab\/unit>" 
    ,"label":"U.S. Perm" 
    ,"symbol":"perm{US}" 
    ,"type":"qudt:Unit" 
    ]}

{
  "@id" : "http://qudt.org/vocab/unit/PERM_US",
  "@type" : "http://qudt.org/schema/qudt/Unit",
  "description" : {
    "@language" : "en",
    "@value" : "A perm is a unit of permeance or \"water vapor transmission\" given a certain differential in partial pressures on either side of a material or membrane. The U.S. perm is defined as 1 grain of water vapor per hour, per square foot, per inch of mercury."
  },
  "applicableSystem" : "http://qudt.org/vocab/sou/USCS",
  "conversionMultiplier" : "0.0000000000572135",
  "conversionMultiplier:SN" : 5.72135E-11,
  "hasDimensionVector" : "http://qudt.org/vocab/dimensionvector/A0E0L-1I0M0H0T1D0",
  "hasQuantityKind" : "http://qudt.org/vocab/quantitykind/VaporPermeance",
  "informativeReference" : "https://en.wikipedia.org/wiki/Perm_(unit)",
  "symbol" : "perm{US}",
  "isDefinedBy" : "http://qudt.org/2.1/vocab/unit",
  "label" : {
    "@language" : "en",
    "@value" : "U.S. Perm"
  },
  "@context" : {
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      "@id" : "http://qudt.org/schema/qudt/applicableSystem",
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    },
    "conversionMultiplierSN" : {
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    },
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    },
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    },
    "conversionMultiplier" : {
      "@id" : "http://qudt.org/schema/qudt/conversionMultiplier",
      "@type" : "http://www.w3.org/2001/XMLSchema#decimal"
    },
    "hasQuantityKind" : {
      "@id" : "http://qudt.org/schema/qudt/hasQuantityKind",
      "@type" : "@id"
    },
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    },
    "description" : {
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      "@type" : "@id"
    },
    "hasDimensionVector" : {
      "@id" : "http://qudt.org/schema/qudt/hasDimensionVector",
      "@type" : "@id"
    },
    "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#",
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  }
}