1.1 This test method covers the separation of four defined fractions from petroleum asphalts. The four fractions are defined as saturates, naphthene aromatics, polar aromatics, and iso-octane insoluble asphaltenes. This method can also be u
ASTM
Standard Test Method for Separation of Asphalt into Four Fractions
STD-76863
2009
2009-07-01
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