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Namespace Prefixes

PrefixIRI
n7http://qudt.org/vocab/quantitykind/
dctermshttp://purl.org/dc/terms/
n4http://qudt.org/vocab/sou/
n3http://qudt.org/schema/qudt/
n2http://qudt.org/vocab/unit/
rdfshttp://www.w3.org/2000/01/rdf-schema#
n6http://qudt.org/vocab/dimensionvector/
n9http://qudt.org/2.1/vocab/
rdfhttp://www.w3.org/1999/02/22-rdf-syntax-ns#
xsdhhttp://www.w3.org/2001/XMLSchema#

Statements

Subject Item
n2:BTU_IT
rdf:type
n3:Unit
rdfs:label
British Thermal Unit (International Definition)
rdfs:isDefinedBy
n9:unit
dcterms:description
\(\textit{British Thermal Unit}\) (BTU or Btu) is a traditional unit of energy equal to about \(1.0550558526 \textit{ kilojoule}\). It is approximately the amount of energy needed to heat 1 pound (0.454 kg) of water from \(39 \,^{\circ}{\rm F}\) to \(40 \,^{\circ}{\rm F}\) . The unit is most often used in the power, steam generation, heating and air conditioning industries. In scientific contexts the BTU has largely been replaced by the SI unit of energy, the \(joule\), though it may be used as a measure of agricultural energy production (BTU/kg). It is still used unofficially in metric English-speaking countries (such as Canada), and remains the standard unit of classification for air conditioning units manufactured and sold in many non-English-speaking metric countries.
n3:hasDimensionVector
n6:A0E0L2I0M1H0T-2D0
n3:informativeReference
http://physics.nist.gov/Pubs/SP811/appenB9.html http://www.knowledgedoor.com/2/units_and_constants_handbook/british-thermal-unit_group.html http://www.iso.org/iso/home/store/catalogue_ics/catalogue_detail_ics.htm?csnumber=31890 http://en.wikipedia.org/wiki/British_thermal_unit
n3:symbol
Btu{IT}
n3:hasQuantityKind
n7:Energy n7:ThermalEnergy
n3:applicableSystem
n4:IMPERIAL n4:USCS
n3:conversionMultiplier
1055.05585262
n3:definedUnitOfSystem
n4:IMPERIAL
n3:ucumCode
[Btu_IT]
n3:uneceCommonCode
BTU