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  • ASTM D 6423 : 2019

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    Standard Test Method for Determination of pHe of Denatured Fuel Ethanol and Ethanol Fuel Blends

    Available format(s):  Hardcopy, PDF

    Superseded date:  12-05-2023

    Language(s):  English

    Published date:  31-07-2019

    Publisher:  American Society for Testing and Materials

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    Abstract - (Show below) - (Hide below)

    This test method covers a procedure to determine a measure of the acid strength of high ethanol content fuels.

    Scope - (Show below) - (Hide below)

    1.1This test method covers a procedure to determine a measure of the acid strength of high ethanol content fuels. These include denatured fuel ethanol and ethanol fuel blends. The test method is applicable to denatured fuel ethanol and ethanol fuel blends containing ethanol at 51 % by volume, or more.

    1.2Acid strength as measured in this test method is defined as pHe. A pHe value for alcohol solutions is not comparable to pH values of water solutions.

    1.2.1The value of pHe measured will depend somewhat on the fuel blend, the stirring rate, and the time the electrode is in the fuel.

    1.3The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

    1.3.1Hydrogen ion activity in water is expressed as pH and hydrogen ion activity in ethanol is expressed as pHe.

    1.4This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

    1.5This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

    General Product Information - (Show below) - (Hide below)

    Committee D 02
    Document Type Test Method
    Publisher American Society for Testing and Materials
    Status Superseded
    Superseded By
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    ASTM D 4806 : 2021 : REV A Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel
    ASTM D 5798 : 2021 Standard Specification for Ethanol Fuel Blends for Flexible-Fuel Automotive Spark-Ignition Engines
    ASTM D 5798 : 2020 Standard Specification for Ethanol Fuel Blends for Flexible-Fuel Automotive Spark-Ignition Engines
    ASTM D 4806 : 2020 Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel

    Standards Referencing This Book - (Show below) - (Hide below)

    ASTM D 5798 : 2019 Standard Specification for Ethanol Fuel Blends for Flexible-Fuel Automotive Spark-Ignition Engines
    ASTM D 4175 : 2014 Standard Terminology Relating to Petroleum, Petroleum Products, and Lubricants
    ASTM D 5798 : 2007 Standard Specification for Fuel Ethanol (Ed75-Ed85) for Automotive Spark-Ignition Engines
    ASTM D 4175 : 2009 : REV A : EDT 1 Standard Terminology Relating to Petroleum, Petroleum Products, and Lubricants
    ASTM D 4175 : 2008 : REV B : EDT 1 Standard Terminology Relating to Petroleum, Petroleum Products, and Lubricants
    ASTM D 4806 : 2002 Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel
    ASTM D 5798 : 2015 Standard Specification for Ethanol Fuel Blends for Flexible-Fuel Automotive Spark-Ignition Engines
    ASTM D 4175 : 2005 Standard Terminology Relating to Petroleum, Petroleum Products, and Lubricants
    ASTM D 4806 : 2016 Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel
    ASTM D 5798 : 2009 : REV A Standard Specification for Fuel Ethanol (Ed75-Ed85) for Automotive Spark-Ignition Engines
    ASTM D 4175 : 2005 : EDT 2 Standard Terminology Relating to Petroleum, Petroleum Products, and Lubricants
    ASTM D 4175 : 2015 : REV C Standard Terminology Relating to Petroleum, Petroleum Products, and Lubricants
    ASTM D 4175 : 2017 : REV A : EDT 1 Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
    ASTM D 4806 : 2007 : REV A Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel
    ASTM D 5798 : 2012 Standard Specification for Ethanol Fuel Blends for Flexible-Fuel Automotive Spark-Ignition Engines
    ASTM D 4175 : 2008 : REV A Standard Terminology Relating to Petroleum, Petroleum Products, and Lubricants
    ASTM D 4175 : 2017 : REV B Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
    ASTM D 4175 : 2009 Standard Terminology Relating to Petroleum, Petroleum Products, and Lubricants
    ASTM D 4806 : 2015 Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel
    ASTM D 4806 : 2006 : REV B Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel
    ASTM D 4175 : 2009 : REV A : EDT 4 Standard Terminology Relating to Petroleum, Petroleum Products, and Lubricants
    ASTM D 5798 : 2010 : REV A Standard Specification for Fuel Ethanol (Ed70-Ed85) for Automotive Spark-Ignition Engines
    ASTM D 4175 : 2009 : REV A : EDT 3 Standard Terminology Relating to Petroleum, Petroleum Products, and Lubricants
    ASTM D 5798 : 1999 : R2004 Standard Specification for Fuel Ethanol (Ed75-Ed85) for Automotive Spark-Ignition Engines
    ASTM D 4806 : 2006 : REV A Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel
    ASTM D 4175 : 2018 Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
    ASTM D 4806 : 2006 Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel
    ASTM D 4806 : 2001 Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel
    ASTM D 4175 : 2001 : EDT 1 Standard Terminology Relating to Petroleum, Petroleum Products, and Lubricants
    ASTM D 4806 : 2014 Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel
    ASTM D 4175 : 2001 Standard Terminology Relating to Petroleum, Petroleum Products, and Lubricants
    ASTM D 4175 : 2005 : EDT 1 Standard Terminology Relating to Petroleum, Petroleum Products, and Lubricants
    ASTM D 4806 : 2004 : REV A Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel
    ASTM D 4806 : 2013 Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel
    ASTM D 4175 : 2002 Standard Terminology Relating to Petroleum, Petroleum Products, and Lubricants
    ASTM D 5798 : 2006 Standard Specification for Fuel Ethanol (Ed75-Ed85) for Automotive Spark-Ignition Engines
    ASTM D 4806 : 2001 : REV A Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel
    ASTM D 5798 : 2017 Standard Specification for Ethanol Fuel Blends for Flexible-Fuel Automotive Spark-Ignition Engines
    ASTM D 4806 : 2003 Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel
    ASTM D 4806 : 2008 : REV A Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel
    ASTM D 5798 : 2018 : REV A Standard Specification for Ethanol Fuel Blends for Flexible-Fuel Automotive Spark-Ignition Engines
    ASTM D 4806 : 2018 : REV A Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel
    ASTM D 4175 : 2015 Standard Terminology Relating to Petroleum, Petroleum Products, and Lubricants
    ASTM D 1193 : 2006 : R2011 Standard Specification for Reagent Water
    ASTM D 4175 : 2002 : REV A : EDT 2 Standard Terminology Relating to Petroleum, Petroleum Products, and Lubricants
    ASTM D 4806 : 2017 Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel
    ASTM D 4806 : 2010 : REV A Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel
    ASTM D 4806 : 2011 : REV A Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel
    ASTM D 5798 : 2009 Standard Specification for Fuel Ethanol (Ed75-Ed85) for Automotive Spark-Ignition Engines
    ASTM D 5798 : 2009 : REV B Standard Specification for Fuel Ethanol (Ed75-Ed85) for Automotive Spark-Ignition Engines
    ASTM D 4806 : 2016 : REV A Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel
    ASTM D 4175 : 2009 : REV A : EDT 5 Standard Terminology Relating to Petroleum, Petroleum Products, and Lubricants
    ASTM D 4175 : 2016 : REV C Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
    ASTM D 4175 : 2015 : REV B Standard Terminology Relating to Petroleum, Petroleum Products, and Lubricants
    ASTM D 4175 : 2015 : REV A Standard Terminology Relating to Petroleum, Petroleum Products, and Lubricants
    ASTM D 4806 : 2007 Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel
    ASTM D 4806 : 2019 Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel
    ASTM D 4806 : 2004 Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel
    ASTM D 4806 : 2010 Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel
    ASTM D 1193 : 1991 Standard Specification for Reagent Water
    ASTM D 4175 : 2009 : REV A Standard Terminology Relating to Petroleum, Petroleum Products, and Lubricants
    ASTM D 4806 : 2011 Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel
    ASTM D 4175 : 2016 : REV B Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
    ASTM D 5798 : 2013 : REV A Standard Specification for Ethanol Fuel Blends for Flexible-Fuel Automotive Spark-Ignition Engines
    ASTM D 4806 : 2013 : REV A Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel
    ASTM D 4175 : 2002 : REV A : EDT 1 Standard Terminology Relating to Petroleum, Petroleum Products, and Lubricants
    ASTM D 4175 : 2008 Standard Terminology Relating to Petroleum, Petroleum Products, and Lubricants
    ASTM D 4806 : 2019 : REV A Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel
    ASTM D 4175 : 2002 : REV A Standard Terminology Relating to Petroleum, Petroleum Products, and Lubricants
    ASTM D 4175 : 2000 : EDT 1 Standard Terminology Relating to Petroleum, Petroleum Products, and Lubricants
    ASTM D 4175 : 2016 : REV A Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
    ASTM D 4806 : 2018 Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel
    ASTM D 4806 : 2008 Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel
    ASTM D 4806 : 2006 : REV C Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel
    ASTM D 5798 : 2010 Standard Specification for Fuel Ethanol (Ed70-Ed85) for Automotive Spark-Ignition Engines
    ASTM D 4175 : 2017 : REV A Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
    ASTM D 5798 : 2019 : REV A Standard Specification for Ethanol Fuel Blends for Flexible-Fuel Automotive Spark-Ignition Engines
    ASTM D 5798 : 2018 Standard Specification for Ethanol Fuel Blends for Flexible-Fuel Automotive Spark-Ignition Engines
    ASTM D 5798 : 2011 Standard Specification for Ethanol Fuel Blends for Flexible-Fuel Automotive Spark-Ignition Engines
    ASTM D 4175 : 2009 : REV A : EDT 2 Standard Terminology Relating to Petroleum, Petroleum Products, and Lubricants
    ASTM D 1193 : 1970 Standard Specification For Reagent Water
    ASTM D 4806 : 2009 Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel
    ASTM D 4806 : 2012 Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel
    ASTM D 1193 : 2006 Standard Specification for Reagent Water
    ASTM D 4175 : 2018 : EDT 1 Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
    ASTM D 4175 : 2016 Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
    ASTM D 1193 : 1999 Standard Specification for Reagent Water
    ASTM D 4806 : 2010 : REV B Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel
    ASTM D 5798 : 2014 Standard Specification for Ethanol Fuel Blends for Flexible-Fuel Automotive Spark-Ignition Engines
    ASTM D 4175 : 2017 Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
    ASTM D 4806 : 1999 Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel
    ASTM D 4175 : 2019 Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
    ASTM D 1193 : 2006 : R2018 Standard Specification for Reagent Water
    ASTM D 4175 : 2015 : REV B : EDT 1 Standard Terminology Relating to Petroleum, Petroleum Products, and Lubricants
    ASTM D 4175 : 2008 : REV B Standard Terminology Relating to Petroleum, Petroleum Products, and Lubricants
    ASTM D 5798 : 2019 : REV B Standard Specification for Ethanol Fuel Blends for Flexible-Fuel Automotive Spark-Ignition Engines
    ASTM D 5798 : 1999 Standard Specification for Fuel Ethanol (Ed75-Ed85) for Automotive Spark-Ignition Engines
    ASTM D 5798 : 2013 Standard Specification for Ethanol Fuel Blends for Flexible-Fuel Automotive Spark-Ignition Engines
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