NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.
Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.
An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Development of a new densimeter for the combined investigation of dew-point densities and sorption phenomena of fluid mixtures
Published
Author(s)
Katharina Moritz, Reiner Kleinrahm, Mark O. McLinden, Markus Richter
Abstract
For the determination of dew-point densities and pressures of fluid mixtures, a new densimeter has been developed. The new apparatus is based on the well-established two-sinker density measurement principle with the additional capability of quantifying sorption effects. In the vicinity of the dew line, such effects cause a change in composition of the gas mixture under study, which can significantly distort accurate density measurements. The new experimental technique enables the accurate measurement of dew-point densities and pressures and the quantification of sorption effects at the same time.
Moritz, K.
, Kleinrahm, R.
, McLinden, M.
and Richter, M.
(2017),
Development of a new densimeter for the combined investigation of dew-point densities and sorption phenomena of fluid mixtures, Measurement Science and Technology, [online], https://doi.org/10.1088/1361-6501/aa940a, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=923979
(Accessed October 13, 2025)