One of the quantities that, in a system of quantities, are conventionally accepted
as functionally independent of one another. In the SI, these are:
length,
mass,
time,
electric current,
temperature,
amount of substance, and
luminous intensity. All other physical quantities (and units) are regarded as being derived from these
base quantities (and
base units).
Source:
PAC, 1996, 68, 957
(Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations
1996))
on page 963
PAC, 1986, 58, 1405
(Recommendations for the presentation of thermodynamic and related data in biology
(Recommendations 1985))
on page 1406
Cite as:
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by
A. D. McNaught and A.Wilkinson. Blackwell Scientific Publications, Oxford (1997).
XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic,
J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8.
https://doi.org/10.1351/goldbook.
