ASTM D6423 - 19 - Standard Test Method for Determination of pHe of Denatured Fuel Ethanol and Ethanol Fuel Blends

ASTM D6423 - 19

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

Status : Current   Published : July 2019

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1.1 This 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.

1.2 Acid 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.

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

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

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

1.4  This 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.

1.5  This 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.




Standard NumberASTM D6423 - 19
TitleStandard Test Method for Determination of pHe of Denatured Fuel Ethanol and Ethanol Fuel Blends
StatusCurrent
Publication Date01 July 2019
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
Descriptors acid strength, automotive spark ignition engine fuel, corrosion potential, denatured fuel ethanol, ethanol, ethanol fuel blends, ethanol-hydrocarbon blends, fuel ethanol, pHe
ICS27.060.10
PublisherASTM
FormatA4
DeliveryYes
Pages5
File Size81 KB
Price£40.00


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