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    ASTM D3343 - 16

    Standard Test Method for Estimation of Hydrogen Content of Aviation Fuels

    Active Standard ASTM D3343 | Developed by Subcommittee: D02.04.0K

    Book of Standards Volume: 05.01

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    Significance and Use

    4.1 This test method is intended for use as a guide in cases in which an experimental determination of hydrogen content is not available. Table 1 shows a summary for the range of each variable used in developing the correlation. The mean value and its distribution about the mean, namely the standard deviation, is shown. This indicates, for example, that the mean density for all fuels used in developing the correlation was 783.5 kg/m3 and that two thirds of the samples had a density between 733.2 kg/m3 and 841.3 kg/m3, that is, plus and minus one standard deviation. The correlation is most accurate when the values of the variables to be used in the equation are within one standard deviation of the mean, but is useful up to two standard deviations of the mean. The use of this correlation may be applicable to other hydrocarbon distillates similar to aviation fuels, but only limited data on nonaviation fuels were included in the correlation.

    4.2 Hydrogen content is required to correct gross heat of combustion to net heat of combustion. Net heat is used in aircraft calculation because all combustion products are in the gaseous state, but experimental methods measure gross heat.

    1. Scope

    1.1 This test method covers the estimation of the hydrogen content (mass percent) of aviation gasolines and aircraft turbine and jet engine fuels.

    1.2 This test method is empirical and is applicable to liquid hydrocarbon fuels that conform to the requirements of specifications for aviation gasolines or aircraft turbine and jet engine fuels of types Jet A, Jet A-1, Jet B, JP-4, JP-5, JP-7, and JP-8.

    Note 1: The procedure for the experimental determination of hydrogen in petroleum fractions is described in Test Methods D1018, D3701, D5291, and D7171.

    Note 2: The estimation of the hydrogen content of a hydrocarbon fuel is justifiable only when the fuel belongs to a well-defined class for which a relationship among the hydrogen content and the distillation range, density, and aromatic content has been derived from accurate experimental measurements on representative samples of that class. Even in this case, the possibility that the estimates may be in error by large amounts for individual fuels should be recognized. The fuels used to establish the correlation presented in this test method are defined by the following specifications:



    Aviation gasolines


    Aircraft turbine and jet engine fuels


     JP-4 and JP-5






     Jet A and Jet A-1


    Miscellaneous hydrocarbons

     No. 2 Diesel fuel

     Kerosene distillates (similar to Jet A)

     Miscellaneous (includes thinners, gasoline fractions, and unidentified blends)

     Special production fuels (commercial products of nearly pure hydrocarbons
      and special high-temperature fuels (HTF) produced for Air Force tests.

     Pure hydrocarbons

    1.3 The values stated in SI units are to be regarded as the standard.

    1.3.1 Exception—The values given in parentheses are for information only.

    1.4 This standard does not purport to address the safety concerns, 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.

    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

    D910 Specification for Leaded Aviation Gasolines

    D1018 Test Method for Hydrogen In Petroleum Fractions

    D1298 Test Method for Density, Relative Density, or API Gravity of Crude Petroleum and Liquid Petroleum Products by Hydrometer Method

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

    D1655 Specification for Aviation Turbine Fuels

    D2887 Test Method for Boiling Range Distribution of Petroleum Fractions by Gas Chromatography

    D3701 Test Method for Hydrogen Content of Aviation Turbine Fuels by Low Resolution Nuclear Magnetic Resonance Spectrometry

    D5291 Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Petroleum Products and Lubricants

    D7171 Test Method for Hydrogen Content of Middle Distillate Petroleum Products by Low-Resolution Pulsed Nuclear Magnetic Resonance Spectroscopy

    Military Specifications

    MIL-DTL-38219 Turbine Fuel, Low Volatility, JP-7

    MIL-DTL-5624 Turbine Fuel, Aviation, Grade JP-4 and JP-5


    ICS Code

    ICS Number Code 75.160.20 (Liquid fuels)

    UNSPSC Code

    UNSPSC Code 15101504(Aviation fuel)

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

    DOI: 10.1520/D3343-16

    Citation Format

    ASTM D3343-16, Standard Test Method for Estimation of Hydrogen Content of Aviation Fuels, ASTM International, West Conshohocken, PA, 2016, www.astm.org

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