ASTM D2425-04

    Standard Test Method for Hydrocarbon Types in Middle Distillates by Mass Spectrometry


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    1. Scope

    1.1 This test method covers an analytical scheme using the mass spectrometer to determine the hydrocarbon types present in virgin middle distillates 204 to 343C (400 to 650F) boiling range, 5 to 95 volume % as determined by Test Method D 86. Samples with average carbon number value of paraffins between C12 and C16 and containing paraffins from C10 and C 18 can be analyzed. Eleven hydrocarbon types are determined. These include: paraffins, noncondensed cycloparaffins, condensed dicycloparaffins, condensed tricycloparaffins, alkylbenzenes, indans or tetralins, or both, CnH2n-10(indenes, etc.), naphthalenes, C nH2n-14(acenaphthenes, etc.), CnH2n-16(acenaphthylenes, etc.), and tricyclic aromatics. Note 1This test method was developed on consolidated Electro-dynamics Corp. Type 103 Mass Spectrometers.

    1.2 The values stated in SI units are to be regarded as the standard. The inch-pound units given in parentheses are for information only.

    This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For a specific hazard statement, see .


    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

    D86 Test Method for Distillation of Petroleum Products and Liquid Fuels at Atmospheric Pressure

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

    D2549 Test Method for Separation of Representative Aromatics and Nonaromatics Fractions of High-Boiling Oils by Elution Chromatography

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

    D6379 Test Method for Determination of Aromatic Hydrocarbon Types in Aviation Fuels and Petroleum DistillatesHigh Performance Liquid Chromatography Method with Refractive Index Detection


    ICS Code

    ICS Number Code 75.080 (Petroleum products in general)

    UNSPSC Code

    UNSPSC Code


    Referencing This Standard
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    DOI: 10.1520/D2425-04

    Citation Format

    ASTM D2425-04, Standard Test Method for Hydrocarbon Types in Middle Distillates by Mass Spectrometry, ASTM International, West Conshohocken, PA, 2004, www.astm.org

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