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Namespace Prefixes

PrefixIRI
n5http://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:ATM_T
rdf:type
n3:Unit
rdfs:label
Technical Atmosphere
rdfs:isDefinedBy
n9:unit
dcterms:description
A technical atmosphere (symbol: at) is a non-SI unit of pressure equal to one kilogram-force per square centimeter. The symbol 'at' clashes with that of the katal (symbol: 'kat'), the SI unit of catalytic activity; a kilotechnical atmosphere would have the symbol 'kat', indistinguishable from the symbol for the katal. It also clashes with that of the non-SI unit, the attotonne, but that unit would be more likely be rendered as the equivalent SI unit. Assay ton (abbreviation 'AT') is not a unit of measurement, but a standard quantity used in assaying ores of precious metals; it is \(29 1D6 \,grams\) (short assay ton) or \(32 2D3 \,grams\) (long assay ton), the amount which bears the same ratio to a milligram as a short or long ton bears to a troy ounce. In other words, the number of milligrams of a particular metal found in a sample of this size gives the number of troy ounces contained in a short or long ton of ore.
n3:hasDimensionVector
n6:A0E0L-1I0M1H0T-2D0
n3:informativeReference
http://en.wikipedia.org/wiki/Technical_atmosphere
n3:latexDefinition
\(1 at = 98.0665 kPa \approx 0.96784 standard atmospheres\)
n3:symbol
at
n3:hasQuantityKind
n5:VaporPressure n5:ForcePerArea
n3:applicableSystem
n4:CGS
n3:conversionMultiplier
98066.5
n3:iec61360Code
0112/2///62720#UAA321
n3:ucumCode
att
n3:udunitsCode
at
n3:uneceCommonCode
ATT