ASTM D2887 to ASTM D86 Conversion

Data are first pressure corrected to 760 mm Hg with the ASTM D86 Pressure Correction.

The method which was developed by Riazi and Daubert and published in the 1987 API Technical Data Book is used to convert each D2887 temperature to a D86 temperature:

$image\ASSAY05.gif$

where:

$image\ASSAY06.gif$ a, b,c = constants for each standard volume percent and D2887 and D86 are Deg R.

$image\ASSAY07.gif$

Reference: Riazi M.R. and Daubert, T.E., Oil and Gas Journal, August 25, 1986, pp 50-57.

Note: The above equation is not reversible because of the F equation.

Additional Information

Assay Processing Reference Help