D4530-03 1.1 This test method covers the
determination of the amount of carbon residue (see Note 1) formed after
evaporation and pyrolysis of petroleum materials under certain
conditions and is intended to provide some indication of the relative
coke forming tendency of such materials. 1.2 The test results are equivalent to
the Conradson Carbon Residue test (see Test Method
D-189). Note1—This procedure is a modification of
the original method and apparatus for carbon residue of petroleum
materials, where it has been demonstrated that thermogravimetry is
another applicable technique. However, it is the responsibility of the
operator to establish operating conditions to obtain equivalent results
when using thermogravimetry.
Standard Test
Method for Determination of Carbon Residue (Micro Method)
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