ASTM D7619 - 17

    Standard Test Method for Sizing and Counting Particles in Light and Middle Distillate Fuels, by Automatic Particle Counter

    Active Standard ASTM D7619 | Developed by Subcommittee: D02.14

    Book of Standards Volume: 05.04


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    Significance and Use

    5.1 This test method is intended for use in the laboratory or in the field for evaluating the cleanliness of distillate fuels, and liquid bio fuels. It is not applicable to on or in-line applications.

    5.2 This test method offers advantage over traditional filtration methods in that it is a precise rapid test, and advantage over visual methods as it is not subjective.

    5.3 An increase in particle counts can indicate a change in the fuel condition caused by storage or transfer for example.

    5.4 High levels of particles can cause filter blockages and have a serious impact on the life of pumps, injectors, pistons and other moving parts. Knowledge of particle size in relation to the metallurgy can provide vital information especially if the hardness of particles is also known from other sources.

    5.5 This test method specifies a minimum requirement for reporting measurements in particle size bands (see A1.1.2). Some specific applications may require measurements in other particle size bands.

    5.6 Obtaining a representative sample and following the recommended sample and test specimen preparation procedures and timescales is particularly important with particle counting methods. (See Sections 8, 10, 14.1.4 and Note 8.)

    5.7 This test method can also be used to estimate the total particulate counts excluding free water droplets in aviation turbine fuels by a chemical pretreatment of the fuel. See Appendix X2.

    1. Scope

    1.1 This test method uses a specific automatic particle counter2 (APC) to count and measure the size of dispersed dirt particles, water droplets and other particles, in light and middle distillate fuel, and bio fuels such as biodiesel and biodiesel blends, in the overall range from 4 µm(c) to 100 µm(c) and in the size bands 4 µm(c), 6 µm(c), and 14 µm(c).

    Note 1: ASTM and military specification fuels falling within the scope of this test method include Specifications: D975 grades 1D and 2D, D1655, D3699, D4814 (see 14.1.1.1), D6751, D7467, distillate grades of D396 and D2880, MIL-DTL-83133, and MIL-DTL-16884.

    Note 2: For the purposes of this test method, water droplets are counted as particles, and agglomerated particles are detected and counted as a single larger particle. Dirt includes biological particles. Although the projected area of a particle is measured, this is expressed as the diameter of a sphere for the purposes of this test method.

    Note 3: The notation (c), used with particle sizes, is used to denote that the apparatus has been calibrated in accordance with ISO 11171. Strictly this only applies to particles up to 50 µm.

    Note 4: This test method may be used for particle sizes bands up to 100 µm(c), however the precision has only been determined for the size bands 4 µm(c), 6 µm(c), and 14 µm(c). All measurements are per millilitre.

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

    1.3 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 and health practices and determine the applicability of regulatory limitations prior to use.

    1.4 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

    D396 Specification for Fuel Oils

    D975 Specification for Diesel Fuel Oils

    D1655 Specification for Aviation Turbine Fuels

    D2880 Specification for Gas Turbine Fuel Oils

    D3699 Specification for Kerosine

    D4057 Practice for Manual Sampling of Petroleum and Petroleum Products

    D4177 Practice for Automatic Sampling of Petroleum and Petroleum Products

    D4814 Specification for Automotive Spark-Ignition Engine Fuel

    D5854 Practice for Mixing and Handling of Liquid Samples of Petroleum and Petroleum Products

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

    D6751 Specification for Biodiesel Fuel Blend Stock (B100) for Middle Distillate Fuels

    D7467 Specification for Diesel Fuel Oil, Biodiesel Blend (B6 to B20)

    ISO Standards

    ISO 11171 Hydraulic Fluid PowerCalibration of Automatic Particle Counters for Liquids

    ISO 12103-A1 Specification for Ultra Fine Test Dust (UFTD)

    ISO 12103-A3 Specification for Medium Test Dust (MTD)

    U.S. Dept. of Defense Specifications

    MIL-DTL-16884

    MIL-DTL-83133 Turbine Fuel, Aviation, Kerosene Type, JP-8 (NATO F-34), NATO F-35, and JP-8+100 (NATO F-37)

    Energy Institute Standard

    IP 565 Determination of the level of cleanliness of aviation turbine fuelPortable automatic particle counter method


    ICS Code

    ICS Number Code 75.160.20 (Liquid fuels)

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

    DOI: 10.1520/D7619-17

    Citation Format

    ASTM D7619-17, Standard Test Method for Sizing and Counting Particles in Light and Middle Distillate Fuels, by Automatic Particle Counter, ASTM International, West Conshohocken, PA, 2017, www.astm.org

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