Standard atomic weight of uranium

Notes

g Geological and biological materials are known in which the element has an isotopic composition outside the limits for normal material. The difference between the atomic weight of the element in such materials and that given in the table may exceed the stated uncertainty.

m Modified isotopic compositions may be found in commercially available material because the material has been subjected to some undisclosed or inadvertent isotopic fractionation. Substantial deviations in atomic weight of the element from that given in the table can occur.

Turtle

This resource as a file: AW-U-standard.ttl

# Prototype: a suggestion, not an official CIAAW or IUPAC record. Official values are at https://ciaaw.org

@prefix ciaaw: <https://hendrikborgelt.github.io/Draft_for_IUPAC_CIAAW-Isotopic-Abundances-and-Atomic-Weights/ciaaw-draft#> .
@prefix ciaaw_draft: <https://hendrikborgelt.github.io/Draft_for_IUPAC_CIAAW-Isotopic-Abundances-and-Atomic-Weights/id/> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix element: <https://hendrikborgelt.github.io/Draft_for_IUPAC_CIAAW-Isotopic-Abundances-and-Atomic-Weights/elements/> .
@prefix qudt: <http://qudt.org/schema/qudt/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix unit: <http://qudt.org/vocab/unit/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

ciaaw:note-g a ciaaw:Footnote ;
    skos:definition "Geological and biological materials are known in which the element has an isotopic composition outside the limits for normal material. The difference between the atomic weight of the element in such materials and that given in the table may exceed the stated uncertainty."@en ;
    skos:notation "g" .

ciaaw:note-m a ciaaw:Footnote ;
    skos:definition "Modified isotopic compositions may be found in commercially available material because the material has been subjected to some undisclosed or inadvertent isotopic fractionation. Substantial deviations in atomic weight of the element from that given in the table can occur."@en ;
    skos:notation "m" .

element:Uranium ciaaw:currentStandardAtomicWeight ciaaw_draft:AW-U-standard ;
    ciaaw:hasDeclaration ciaaw_draft:AW-U-standard .

ciaaw_draft:AW-U-standard-1979 dcterms:isReplacedBy ciaaw_draft:AW-U-standard .

ciaaw_draft:AW-U-standard a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:issued "1999"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-U-standard-1979 ;
    dcterms:source <https://doi.org/10.1351/pac200173040667> ;
    ciaaw:footnote ciaaw:note-g,
        ciaaw:note-m ;
    ciaaw:ofElement element:Uranium ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 238.02891 ;
            qudt:standardUncertainty 0.00003 ;
            ciaaw:significantFigures 8 ;
            ciaaw:significantFiguresUncertainty 1 ] .