This International Standard specifies a method for the determination, using
an oscillating U-tube density meter, of the density of crude petroleum and
related products within the range 600 kg/m3 to 1 100 kg/m3 which can be handled
as single-phase liquids at the test temperature and pressure.
International Standard is applicable to liquids of any vapour pressure as long
as suitable precautions are taken to ensure that they remain in single phase
with no loss of light ends and subsequent changes in composition and density
during both the sample handling and the density determination.
NOTE 1 If the determined density is to be converted to a density at some reference temperature using petroleum measurement tables, the determination should be carried out at a temperature as close as possible to the reference temperature in order to minimize uncertainties due to the use of generalized tables. This method is not intended for use in calibrating online density meters.
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