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    ASTM D2427 - 06(2019)

    Standard Test Method for Determination of C2 through C5 Hydrocarbons in Gasolines by Gas Chromatography

    Active Standard ASTM D2427 | Developed by Subcommittee: D02.04.0L

    Book of Standards Volume: 05.01

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    Significance and Use

    4.1 In hydrocarbon type analyses of gasolines, highly volatile fuels can need to be stabilized by depentanization (Test Method D2001) prior to analysis. A knowledge of the composition of light hydrocarbons in the overhead from the depentanization process is useful in converting analyses of the depentanized fraction to a total sample basis.

    1. Scope

    1.1 This test method covers the determination of the two (C2) through five (C5-) carbon paraffins and mono-olefins in gasolines. The concentrations by volume or mass (weight) of the following components are generally reported:

    1.1.1 Ethylene plus ethane

    1.1.2 Propane

    1.1.3 Propylene

    1.1.4 Isobutane

    1.1.5 n-Butane

    1.1.6 Butene-1 plus isobutylene

    1.1.7 trans-Butene-2

    1.1.8 cis-Butene-2

    1.1.9 Isopentane

    1.1.10 3-Methylbutene-1

    1.1.11 n-Pentane

    1.1.12 Pentene-1

    1.1.13 2-Methylbutene-1

    1.1.14 trans-Pentene-2

    1.1.15 cis-Pentene-2

    1.1.16 2-Methylbutene-2

    1.2 This test method does not cover the determination of cyclic olefins, diolefins, or acetylenes. These are usually minor components in finished gasolines.

    1.3 Samples to be analyzed should not contain significant amounts of material boiling lower than ethylene.

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

    1.4.1 Exception—Alternative units, in common usage, are also provided to improve the clarity and aid the user of this test method.

    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.

    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

    D2001 Test Method for Depentanization of Gasoline and Naphthas

    ICS Code

    ICS Number Code 75.160.20 (Liquid fuels)

    UNSPSC Code

    UNSPSC Code 15111500(Gaseous fuels); 15101506(Gasoline or Petrol)

    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/D2427-06R19

    Citation Format

    ASTM D2427-06(2019), Standard Test Method for Determination of C2 through C5 Hydrocarbons in Gasolines by Gas Chromatography, ASTM International, West Conshohocken, PA, 2019, www.astm.org

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