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    ASTM D8080 - 21

    Standard Specification for Compressed Natural Gas (CNG) and Liquefied Natural Gas (LNG) Used as a Motor Vehicle Fuel

    Active Standard ASTM D8080 | Developed by Subcommittee: D03.92

    Book of Standards Volume: 05.06


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    1. Scope

    1.1 This specification defines the minimum fuel quality requirements for gaseous fuels consisting primarily of methane when used as an internal combustion engine fuel.

    1.2 This specification defines the criteria for compressed natural gas (CNG), liquefied natural gas (LNG), or biogas when used as a fuel for internal combustion engines in motor vehicles.

    1.3 This specification covers the needs of internal combustion engines designed for use in motor vehicles.

    1.4 Fuels that have been enriched with hydrogen are outside the scope of this specification.

    1.5 This specification applies to the fuel as delivered into the on-board fuel tanks of a motor vehicle either as a compressed gas or cryogenic liquified gas.

    1.6 This specification may serve as a guide to gaseous fuel quality requirements for internal combustion engines used in stationary applications.

    1.7 This specification is not a natural gas pipeline standard; those requirements are determined by national and regional tariffs.

    1.8 Units—The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.

    1.9 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.

    1.10 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 (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    D1142 Test Method for Water Vapor Content of Gaseous Fuels by Measurement of Dew-Point Temperature

    D1945 Test Method for Analysis of Natural Gas by Gas Chromatography

    D3588 Practice for Calculating Heat Value, Compressibility Factor, and Relative Density of Gaseous Fuels

    D4150 Terminology Relating to Gaseous Fuels

    D4468 Test Method for Total Sulfur in Gaseous Fuels by Hydrogenolysis and Rateometric Colorimetry

    D5454 Test Method for Water Vapor Content of Gaseous Fuels Using Electronic Moisture Analyzers

    D5504 Test Method for Determination of Sulfur Compounds in Natural Gas and Gaseous Fuels by Gas Chromatography and Chemiluminescence

    D6228 Test Method for Determination of Sulfur Compounds in Natural Gas and Gaseous Fuels by Gas Chromatography and Flame Photometric Detection

    D6968 Test Method for Simultaneous Measurement of Sulfur Compounds and Minor Hydrocarbons in Natural Gas and Gaseous Fuels by Gas Chromatography and Atomic Emission Detection

    D7165 Practice for Gas Chromatograph Based On-line/At-line Analysis for Sulfur Content of Gaseous Fuels

    D7493 Test Method for Online Measurement of Sulfur Compounds in Natural Gas and Gaseous Fuels by Gas Chromatograph and Electrochemical Detection

    D7551 Test Method for Determination of Total Volatile Sulfur in Gaseous Hydrocarbons and Liquefied Petroleum Gases and Natural Gas by Ultraviolet Fluorescence

    D7607 Test Method for Analysis of Oxygen in Gaseous Fuels (Electrochemical Sensor Method)

    D7651 Test Method for Gravimetric Measurement of Particulate Concentration of Hydrogen Fuel

    D7833 Test Method for Determination of Hydrocarbons and Non-Hydrocarbon Gases in Gaseous Mixtures by Gas Chromatography

    D7904 Test Method for Determination of Water Vapor (Moisture Concentration) in Natural Gas by Tunable Diode Laser Spectroscopy (TDLAS)

    D8221 Practice for Determining the Calculated Methane Number (MNC) of Gaseous Fuels Used in Internal Combustion Engines

    D8230 Test Method for Measurement of Volatile Silicon-Containing Compounds in a Gaseous Fuel Sample Using Gas Chromatography with Spectroscopic Detection

    ISO Standard

    ISO 6976 Natural gas Calculation of calorific values, density, relative density and Wobbe index from composition

    ASHRAE Standard

    American Society of Heating, Refrigerating and Air 1989 Fundamentals Volume


    Referencing This Standard
    Link Here
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    DOI: 10.1520/D8080-21

    Citation Format

    ASTM D8080-21, Standard Specification for Compressed Natural Gas (CNG) and Liquefied Natural Gas (LNG) Used as a Motor Vehicle Fuel, ASTM International, West Conshohocken, PA, 2021, www.astm.org

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