ASTM D8071 - 19

    Standard Test Method for Determination of Hydrocarbon Group Types and Select Hydrocarbon and Oxygenate Compounds in Automotive Spark-Ignition Engine Fuel Using Gas Chromatography with Vacuum Ultraviolet Absorption Spectroscopy Detection (GC-VUV)

    Active Standard ASTM D8071 | Developed by Subcommittee: D02.04.0L

    Book of Standards Volume: 05.05


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    Significance and Use

    5.1 The determination of class group composition of automotive spark-ignition fuels as well as quantification of various individual species such as oxygenates and aromatics in automotive fuels is useful for evaluating quality and expected performance, as well as compliance with various governmental regulations.

    1. Scope

    1.1 This test method is a standard procedure for the determination in percent mass or percent volume of hydrocarbon group types (paraffins, isoparaffins, olefins, naphthenes, aromatics), methanol, ethanol, benzene, toluene, ethylbenzene, xylenes, naphthalene, and methylnaphthalenes in automotive spark-ignition engine fuels using gas chromatography and vacuum ultraviolet detection (GC-VUV).

    1.1.1 The concentration ranges for which precision has been determined are as follows:

    Property

    Units

    Applicable Range

    Paraffins

    % Volume

    3.572 to 23.105

    Isoparaffins

    % Volume

    22.697 to 71.993

    Olefins

    % Volume

    0.011 to 44.002

    Naphthenes

    % Volume

    0.606 to 18.416

    Aromatics

    % Volume

    14.743 to 58.124

    Methanol

    % Volume

    0.063 to 3.426

    Ethanol

    % Mass

    0.042 to 15.991

    Benzene

    % Volume

    0.09 to 1.091

    Toluene

    % Volume

    0.698 to 31.377

    Ethylbenzene

    % Volume

    0.5 to 3.175

    Xylenes

    % Volume

    3.037 to 18.955

    Naphthalene

    % Volume

    0.019 to 0.779

    Methylnaphthalenes

    % Volume

    0.21 to 1.484

    1.1.2 This test method may be applicable to other concentration ranges, to other properties, or to other hydrocarbon streams, however precision has not been determined.

    1.2 Individual hydrocarbon components are typically not baseline-separated by the procedure described in this test method, that is, some components will coelute. The coelutions are resolved at the detector using VUV absorbance spectra and deconvolution algorithms.

    1.3 While this test method reports percent mass and percent volume for several specific components that may be present in automotive spark-ignition engine fuel, it does not attempt to speciate all possible components that may occur in automotive spark-ignition engine fuel. In particular, this test method is not intended as a type of detailed hydrocarbon analysis (DHA).

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

    1.5 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. See specific hazard statements in subsection 8.4 and Section 9.

    1.6 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

    D1319 Test Method for Hydrocarbon Types in Liquid Petroleum Products by Fluorescent Indicator Adsorption

    D3606 Test Method for Determination of Benzene and Toluene in Spark Ignition Fuels by Gas Chromatography

    D4057 Practice for Manual Sampling of Petroleum and Petroleum Products

    D4307 Practice for Preparation of Liquid Blends for Use as Analytical Standards

    D5599 Test Method for Determination of Oxygenates in Gasoline by Gas Chromatography and Oxygen Selective Flame Ionization Detection

    D5769 Test Method for Determination of Benzene, Toluene, and Total Aromatics in Finished Gasolines by Gas Chromatography/Mass Spectrometry

    D5842 Practice for Sampling and Handling of Fuels for Volatility Measurement

    D6300 Practice for Determination of Precision and Bias Data for Use in Test Methods for Petroleum Products and Lubricants

    D6708 Practice for Statistical Assessment and Improvement of Expected Agreement Between Two Test Methods that Purport to Measure the Same Property of a Material

    D6730 Test Method for Determination of Individual Components in Spark Ignition Engine Fuels by 100Metre Capillary (with Precolumn) High-Resolution Gas Chromatography


    ICS Code

    ICS Number Code 75.160.20 (Liquid fuels)

    UNSPSC Code

    UNSPSC Code 12350000(Compounds and mixtures); 15101506(Gasoline or Petrol)


    Referencing This Standard
    Link Here
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    DOI: 10.1520/D8071-19

    Citation Format

    ASTM D8071-19, Standard Test Method for Determination of Hydrocarbon Group Types and Select Hydrocarbon and Oxygenate Compounds in Automotive Spark-Ignition Engine Fuel Using Gas Chromatography with Vacuum Ultraviolet Absorption Spectroscopy Detection (GC-VUV), ASTM International, West Conshohocken, PA, 2019, www.astm.org

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