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unit:ATM_T

http://qudt.org/vocab/unit/ATM_T
Types: qudt:Unit
PredicateObject
rdf:type qudt:Unit
dcterms:description The unit for \(\textit{Technical Atmosphere}\), 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 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.
qudt:applicableSystem sou:CGS
qudt:conversionMultiplier 98066.5
qudt:conversionMultiplierSN 9.80665E4
qudt:hasDimensionVector qkdv:A0E0L-1I0M1H0T-2D0
qudt:hasQuantityKind
qudt:iec61360Code “0112/2///62720#UAA321”
qudt:informativeReference
qudt:latexDefinition \(1 at = 98.0665 kPa \approx 0.96784 standard atmospheres\)
qudt:scalingOf unit:PA
qudt:symbol “at”
qudt:ucumCode “att”^^qudt:UCUMcs
qudt:udunitsCode “at”
qudt:uneceCommonCode “ATT”
qudt:wikidataMatch http://www.wikidata.org/entity/Q909066
rdfs:isDefinedBy http://qudt.org/3.1.11/vocab/unit
rdfs:label
  • “Technical Atmosphere”
  • “Technical Atmosphere”@en
Generated 2026-02-20T09:46:38.851-05:00