ASTM D6371 - 05(2010)

    Standard Test Method for Cold Filter Plugging Point of Diesel and Heating Fuels

    Active Standard ASTM D6371 | Developed by Subcommittee: D02.07

    Book of Standards Volume: 05.03


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    Significance and Use

    The CFPP of a fuel is suitable for estimating the lowest temperature at which a fuel will give trouble-free flow in certain fuel systems.

    In the case of diesel fuel used in European light duty trucks, the results are usually close to the temperature of failure in service except when the fuel system contains, for example, a paper filter installed in a location exposed to the weather or if the filter plugging temperature is more than 12°C below the cloud point value in accordance with Test Method D2500, D5771, D5772, or D5773. Domestic heating installations are usually less critical and often operate satisfactorily at temperatures somewhat lower than those indicated by the test results.

    The difference in results obtained from the sample as received and after heat treatment at 45°C for 30 min can be used to investigate complaints of unsatisfactory performance under low temperature conditions.

    1. Scope

    1.1 This test method covers the determination of the cold filter plugging point (CFPP) temperature of diesel and domestic heating fuels using either manual or automated apparatus.

    Note 1—This test method is technically equivalent to test methods IP 309 and EN 116.

    1.2 The manual apparatus and automated apparatus are both suitable for referee purposes.

    1.3 This test method is applicable to distillate fuels, including those containing a flow-improving or other additive, intended for use in diesel engines and domestic heating installations.

    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 WARNINGMercury has been designated by many regulatory agencies as a hazardous material that can cause central nervous system, kidney and liver damage. Mercury, or its vapor, may be hazardous to health and corrosive to materials. Caution should be taken when handling mercury and mercury containing products. See the applicable product Material Safety Data Sheet (MSDS) for details and EPAs websitehttp://www.epa.gov/mercury/faq.htmfor additional information. Users should be aware that selling mercury and/or mercury containing products into your state or country may be prohibited by law.

    1.6 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. For specific warning statements, see Section 7.


    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

    D2500 Test Method for Cloud Point of Petroleum Products

    D4057 Practice for Manual Sampling of Petroleum and Petroleum Products

    D4177 Practice for Automatic Sampling of Petroleum and Petroleum Products

    D5771 Test Method for Cloud Point of Petroleum Products (Optical Detection Stepped Cooling Method)

    D5772 Test Method for Cloud Point of Petroleum Products (Linear Cooling Rate Method)

    D5773 Test Method for Cloud Point of Petroleum Products (Constant Cooling Rate Method)

    E1 Specification for ASTM Liquid-in-Glass Thermometers

    ISO Standards

    IP3310 Test sieves - Technical requirements and testing - Part 1: Metal cloth

    European Standards

    EN116 Diesel and domestic heating fuels - Determination of cold filter plugging point


    ICS Code

    ICS Number Code 75.160.20 (Liquid fuels)

    UNSPSC Code

    UNSPSC Code 15101505(Diesel fuel)


    DOI: 10.1520/D6371-05R10

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