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Properties of water and aqueous systems: Metrological applications



Daniel G. Friend, Allan H. Harvey


Water and aqueous systems are widely used in metrology, which is a major focus of the National Institute of Standards and Technology (NIST). Standards such as those produced by IAPWS can be used to calibrate instruments and validate protocols. In this work, we review several activities at NIST in which research on water and aqueous systems is being applied to improve metrology. The projects include a new formulation for the viscosity of pure water, an examination of the effect of dissolved air on the density and refractive index of water, and utilization of ab initio quantum methods for calculation of thermodynamic properties of moist air as required in humidity standards.
Proceedings Title
Proc., Properties of Water and Steam Conf.
Conference Dates
August 29-September 3, 2004
Conference Location
Kyoto, 1, JA
Conference Title
Properties of Water and Steam Conf.


aqueous mixtures, humidity, metrology, refractive index, viscosity, water


Friend, D. and Harvey, A. (2004), Properties of water and aqueous systems: Metrological applications, Proc., Properties of Water and Steam Conf., Kyoto, 1, JA, [online], (Accessed June 21, 2024)


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Created November 18, 2004, Updated October 12, 2021