commission on isotopic abundances and atomic weightsの例文

• IUPAC is also known for standardizing the atomic weights of the elements through one of its oldest standing committees, the Commission on Isotopic Abundances and Atomic Weights.
• From 1980, De Laeter was elected in the IUPAC Commission on Isotopic Abundances and Atomic Weights, serving as the Secretary of the Commission from 1984 1987 and as its chairman from 1988 1991.
• The "'Commission on Isotopic Abundances and Atomic Weights "'( "'CIAAW "') is an international scientific committee of the International Union of Pure and Applied Chemistry ( IUPAC ) under its isotopic composition of elements.
• For this definition, " [ 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 . " These "'standard atomic weights "'are published at regular intervals by the Commission on Isotopic Abundances and Atomic Weights of the International Union of Pure and Applied Chemistry ( IUPAC ).