Active Standard: D6423 - 08
The recent revision of ASTM D5798 allows a minimum of 51% ethanol in the fuel. This fuel must meet a pHe limit using the D6423 test method. However, this test method was not developed with so little ethanol so the method must be demonstrated with this low ethanol level or modified to measure pHe successfully at allowed compositions in D5798.
Keywordsacid strength; automotive spark ignition engine fuel; corrosion potential; denatured fuel ethanol; ethanol; fuel ethanol; pHe; Denatured fuel ethanol; Ethanol; Fuel ethanol (Ed75-Ed85); pH;
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