ASTM D4806-21a

Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel (Includes all amendments and changes 10/19/2021).

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STANDARD published on 1.10.2021

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The information about the standard:

Designation standards: ASTM D4806-21a
Publication date standards: 1.10.2021
SKU: NS-1039166
The number of pages: 9
Approximate weight : 27 g (0.06 lbs)
Country: American technical standard
Category: Technical standards ASTM

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Liquid fuels

Annotation of standard text ASTM D4806-21a :

This specification covers nominally anhydrous denatured fuel ethanol intended for blending with unleaded or leaded gasolines for use as a spark-ignition automotive engine fuel. Denatured fuel ethanol shall conform to the specified performance requirements for the following: ethanol content, methanol, solvent-washed gum, water content, denaturant content, inorganic chloride content, copper content, acidity, pHe, sulfur content, sulfate content, appearance, and specific gravity. The only denaturants used for fuel ethanol shall be natural gasoline, gasoline components, or unleaded gasoline at the minimum concentration prescribed. Prohibited denaturants include methanol which does not meet the specified requirement, pyrroles, turpentine, ketones, and tars (high-molecular weight pyrolysis products of fossil or nonfossil vegetable matter). Sampling, containers, and sample handling techniques, and the test methods for determining conformance to the specified requirements are given.

Keywords:
acidity, automotive spark-ignition engine fuel, base gasoline, chloride ion, copper, corrosion inhibitors, denaturants, denatured fuel ethanol, ethanol, fuel, fuel ethanol, gasoline, gasoline-ethanol blend, oxygenate, solvent-washed gum content, sulfate ion, sulfur, water,, ICS Number Code 75.160.20 (Liquid fuels)

Additional information

1. Scope

1.1?This specification covers nominally anhydrous denatured fuel ethanol intended to be blended with unleaded or leaded gasolines at 1 % to 15 % by volume for use as automotive spark-ignition engine fuel covered by Specification D4814 as well as other fuel applications or specifications involving ethanol. The significance of this specification is shown in Appendix X1.

1.2?Jurisdictions may vary in their regulatory requirements for the allowable or prohibited types of denaturants, chemical composition of the denaturant or concentration of denaturant needed to denature the ethanol. The user is advised to check with the national and regional regulatory agencies where the ethanol is denatured and used.

1.2.1?Specific regulatory requirements for denatured fuel ethanol and acceptable denaturants from various jurisdictions are given in Appendixes for information.

1.3?The values stated in SI units are to be regarded as standard.

1.3.1?ExceptionValues given in parentheses are provided for information only. Non-SI units are shown in the Appendix if they are in a direct quotation from government regulations. In most cases, U.S. federal regulations specify non-SI units.

1.4?The following safety hazards caveat pertains only to the method modification in 8.7 of this specification: 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.

2. Referenced Documents

D381-22	Standard Test Method for Gum Content in Fuels by Jet Evaporation
D1298-12b(2017)e1	Standard Test Method for Density, Relative Density, or API Gravity of Crude Petroleum and Liquid Petroleum Products by Hydrometer Method (Includes all amendments and changes 3/14/2023).
D1613-17(2023)	Standard Test Method for Acidity in Volatile Solvents and Chemical Intermediates Used in Paint, Varnish, Lacquer, and Related Products
D86-23ae1	Standard Test Method for Distillation of Petroleum Products and Liquid Fuels at Atmospheric Pressure (Includes all amendments and changes 2/9/2024).
D1688-17	Standard Test Methods for Copper in Water
D2622-21	Standard Test Method for Sulfur in Petroleum Products by Wavelength Dispersive X-ray Fluorescence Spectrometry
D3120-08(2019)	Standard Test Method for Trace Quantities of Sulfur in Light Liquid Petroleum Hydrocarbons by Oxidative Microcoulometry
D4052-22	Standard Test Method for Density, Relative Density, and API Gravity of Liquids by Digital Density Meter
D4057-22	Standard Practice for Manual Sampling of Petroleum and Petroleum Products
D7039-15a(2020)	Standard Test Method for Sulfur in Gasoline, Diesel Fuel, Jet Fuel, Kerosine, Biodiesel, Biodiesel Blends, and Gasoline-Ethanol Blends by Monochromatic Wavelength Dispersive X-ray Fluorescence Spectrometry (Includes all amendments and changes 6/11/2020).
E300-03(2022)	Standard Practice for Sampling Industrial Chemicals
E1064-24	Standard Test Method for Water in Organic Liquids by Coulometric Karl Fischer Titration
	Title 27, Parts 19, 20, and 21
D7318-19e1	Standard Test Method for Existent Inorganic Sulfate in Ethanol by Potentiometric Titration (Includes all amendments and changes 12/25/2019).
D7319-22	Standard Test Method for Determination of Existent and Potential Sulfate and Inorganic Chloride in Fuel Ethanol and Butanol by Direct Injection Suppressed Ion Chromatography
D7328-23	Standard Test Method for Determination of Existent and Potential Inorganic Sulfate and Total Inorganic Chloride in Fuel Ethanol by Ion Chromatography Using Aqueous Sample Injection
D7757-22	Standard Test Method for Silicon in Gasoline and Related Products by Monochromatic Wavelength Dispersive X-ray Fluorescence Spectrometry
D7795-15(2022)e1	Standard Test Method for Acidity in Ethanol and Ethanol Blends by Titration (Includes all amendments and changes 5/4/2022).
E29-22	Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E203-24	Standard Test Method for Water Using Volumetric Karl Fischer Titration
D5854-19a	Standard Practice for Mixing and Handling of Liquid Samples of Petroleum and Petroleum Products (Includes all amendments and changes 8/13/2019).
D6423-20a	Standard Test Method for Determination of pHe of Denatured Fuel Ethanol and Ethanol Fuel Blends (Includes all amendments and changes 7/17/2020).
D6550-20	Standard Test Method for Determination of Olefin Content of Gasolines by Supercritical-Fluid Chromatography
D4175-23a	Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants (Includes all amendments and changes 12/21/2023).
D4177-22e1	Standard Practice for Automatic Sampling of Petroleum and Petroleum Products (Includes all amendments and changes 3/24/2023).
D4306-20	Standard Practice for Aviation Fuel Sample Containers for Tests Affected by Trace Contamination
D4814-23a	Standard Specification for Automotive Spark-Ignition Engine Fuel (Includes all amendments and changes 12/14/2023).
D5453-19a	Standard Test Method for Determination of Total Sulfur in Light Hydrocarbons, Spark Ignition Engine Fuel, Diesel Engine Fuel, and Engine Oil by Ultraviolet Fluorescence (Includes all amendments and changes 8/13/2019).
D5501-20	Standard Test Method for Determination of Ethanol and Methanol Content in Fuels Containing Greater than 20 % Ethanol by Gas Chromatography
D5580-21	Standard Test Method for Determination of Benzene, Toluene, Ethylbenzene, p/m-Xylene, o-Xylene, C9 and Heavier Aromatics, and Total Aromatics in Finished Gasoline by Gas Chromatography

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