Standard Historical Last Updated: Dec 13, 2022 Track Document
ASTM D4539-17

Standard Test Method for Filterability of Diesel Fuels by Low-Temperature Flow Test (LTFT)

Standard Test Method for Filterability of Diesel Fuels by Low-Temperature Flow Test (LTFT) D4539-17 ASTM|D4539-17|en-US Standard Test Method for Filterability of Diesel Fuels by Low-Temperature Flow Test (LTFT) Standard new BOS Vol. 05.02 Committee D02
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Significance and Use

5.1 The Low Temperature Flow Test results are indicative of the low temperature flow performance of the test fuel in some diesel vehicles (according to CRC Report No. 528). The test method is especially useful for the evaluation of fuels containing flow improver additives.

5.2 The test method can be used to supplement other measurements of diesel fuel low temperature behavior (in accordance with Test Methods D97, D2500, and D3117).


1.1 This test method covers estimating the filterability of diesel fuels in some automotive equipment at low temperatures.

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 Warning—Mercury has been designated by EPA and many state 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 EPA’s website ( for additional information. Users should be aware that selling mercury or mercury-containing products, or both, in your state may be prohibited by state law.

1.4 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. For specific warning statements, see 1.3, 9.1, 9.2.1, 9.3, 9.5, and Annex A1.

1.5 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.

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Book of Standards Volume: 05.02
Developed by Subcommittee: D02.07
Pages: 7
DOI: 10.1520/D4539-17
ICS Code: 75.160.20