Milton, M J T; Williams, J M; Bennett, S J (2007) Modernising the SI: towards an improved, accessible and enduring system. Metrologia, 44 (5). pp. 356-364.

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Abstract

Recent proposals to re-define four of the base units of the International System (SI) have stimulated some debate as to how the SI might best be developed to meet changes in requirements. In this paper we consider whether the proposals are a timely and proportionate response to those changes in requirements that can be identified today. We conclude that, whilst the proposed changes to the definitions of the mole and kelvin appear to have some advantages, the case for changes in the definitions of the ampere and the kilogram is less well made at the present stage of development of the key experiments involved.

Item Type:	Article
Keywords:	SI units, kilogram, kelvin, mole, ampere
Last Modified:	02 Feb 2018 13:15
URI:	https://eprintspublications.npl.co.uk/id/eprint/3953