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ASTM D 6423 : 2014

ASTM D 6423 : 2014

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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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Superseded date

11-07-2023

Superseded by

ASTM D 6423 : 2018

Language(s)

English

Published date

15-12-2014

Publisher

American Society for Testing and Materials

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

Committee
D 02
DocumentType
Test Method
Pages
4
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

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 and health practices and determine the applicability of regulatory limitations prior to use.

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 : 2018 Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel

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