These include (,
) measurements, saturated density measurements, and any other measurements which give information on the (,
) surface of a fluid.
PAC, 1981, 53, 1805
(Assignment and presentation of uncertainties of the numerical results of thermodynamic measurements (Provisional))
on page 1818
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. doi:10.1351/goldbook