ASTM D4806-06c

D381-25

Standard Test Method for Gum Content in Fuels by Jet Evaporation

D1298-24

Standard Test Method for Density, Relative Density, or API Gravity of Crude Petroleum and Liquid Petroleum Products by Hydrometer Method

D1613-17(2023)

Standard Test Method for Acidity in Volatile Solvents and Chemical Intermediates Used in Paint, Varnish, Lacquer, and Related Products

D86-23ae2

Standard Test Method for Distillation of Petroleum Products and Liquid Fuels at Atmospheric Pressure (Includes all amendments and changes 11/4/2024).

D1688-17(2025)

Standard Test Methods for Copper in Water

D2622-26

Standard Test Method for Sulfur in Petroleum Products by Wavelength Dispersive X-ray Fluorescence Spectrometry

D3120-25

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

D7039-24

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

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

D7318-25

Standard Test Method for Existent Inorganic Sulfate in Ethanol by Potentiometric Titration

D7319-26

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

D5854-25

Standard Practice for Mixing and Handling of Liquid Samples of Petroleum and Petroleum Products

D6423-25

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

D6550-25

Standard Test Method for Determination of Olefin Content of Gasolines by Supercritical-Fluid Chromatography

D4175-24e2

Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants (Includes all amendments and changes 6/9/2026).

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

D4814-26

Standard Specification for Automotive Spark-Ignition Engine Fuel

D5453-25

Standard Test Method for Determination of Total Sulfur in Light Hydrocarbons, Spark Ignition Engine Fuel, Diesel Engine Fuel, and Engine Oil by Ultraviolet Fluorescence

D5501-20(2024)e1

Standard Test Method for Determination of Ethanol and Methanol Content in Fuels Containing Greater than 20 % Ethanol by Gas Chromatography (Includes all amendments and changes 1/3/2025).

D5580-26

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