Preferred Label : standard atomic weights;
IUPAC definition : Recommended values of relative atomic masses of the elements revised biennially by
the IUPAC Commission on Atomic Weights and Isotopic Abundances and applicable to elements
in any normal sample with a high level of confidence. A normal sample is any reasonably
possible source of the element or its compounds in commerce for industry and science
and has not been subject to significant modification of isotopic composition within
a geologically brief period.;
Origin ID : S05907;
See also
Recommended values of relative atomic masses of the elements revised biennially by
the IUPAC Commission on Atomic Weights and Isotopic Abundances and applicable to elements
in any normal sample with a high level of confidence. A normal sample is any reasonably
possible source of the element or its compounds in commerce for industry and science
and has not been subject to significant modification of isotopic composition within
a geologically brief period.
