GSO ASTM D4052:2021
Gulf Standard
Current Edition
·
Approved on
01 July 2021
·
Standard Test Method for Density, Relative Density, and API Gravity of Liquids by Digital Density Meter
GSO ASTM D4052:2021 Files
English
9 Pages
Current Edition
Reference Language
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GSO ASTM D4052:2021 Scope
1.1 This test method covers the determination of the density,
relative density, and API Gravity of petroleum distillates and
viscous oils that can be handled in a normal fashion as liquids
at the temperature of test, utilizing either manual or automated
sample injection equipment. Its application is restricted to
liquids with total vapor pressures (see Test Method D5191)
typically below 100 kPa and viscosities (see Test Method D445
or D7042) typically below about 15 000 mm2
/s at the temperature of test. The total vapor pressure limitation however can be
extended to >100 kPa provided that it is first ascertained that
no bubbles form in the U-tube, which can affect the density
determination. Some examples of products that may be tested
by this procedure include: gasoline and gasoline-oxygenate
blends, diesel, jet, basestocks, waxes, and lubricating oils.
1.1.1 Waxes and highly viscous samples were not included
in the 1999 interlaboratory study (ILS) sample set that was
used to determine the current precision statements of the
method, since all samples evaluated at the time were analyzed
at a test temperature of 15 °C. Wax and highly viscous samples
require a temperature cell operated at elevated temperatures
necessary to ensure a liquid test specimen is introduced for
analysis. Consult instrument manufacturer instructions for
appropriate guidance and precautions when attempting to
analyze wax or highly viscous samples. Refer to the Precision
and Bias section of the method and Note 9 for more detailed
information about the 1999 ILS that was conducted.
1.2 In cases of dispute, the referee method is the one where
samples are introduced manually as in 6.2 or 6.3, as appropriate for sample type.
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