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ASTM D 7371 : 2026

Current

Current

The latest, up-to-date edition.

Standard Test Method for Determination of Biodiesel (Fatty Acid Methyl Esters) Content in Diesel Fuel Using Mid Infrared Spectroscopy (FTIR-ATR-PLS Method)

Available format(s)

PDF

Language(s)

English

Published date

01-05-2026

£51.67
Excluding VAT

Committee
D 02
DocumentType
Test Method
Pages
11
PublisherName
American Society for Testing and Materials
Status
Current
Supersedes

1.1This test method covers the determination of the content of fatty acid methyl esters (FAME) biodiesel in diesel fuels. It is applicable to concentrations from 1.00 % to 20 % by volume (see Note 1). This procedure is applicable only to FAME. Biodiesel in the form of fatty acid ethyl esters (FAEE) will cause a negative bias.

Note 1:Using the proper ATR sample accessory, the range may be expanded from 1 % to 100 % by volume, however precision data is not available above 20 % by volume.

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

1.3This 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.

1.4This 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.

ASTM D 7861 : 2024 Standard Test Method for Determination of Fatty Acid Methyl Esters (FAME) in Diesel Fuel by Linear Variable Filter (LVF) Array Based Mid-Infrared Spectroscopy
ASTM D 8274 : 2025 : REV A Standard Test Method for Determination of Biodiesel (Fatty Acid Methyl Esters) Content in Diesel Fuel Oil by Portable Rapid Mid-Infrared Analyzer
ASTM D 396 : 2026 : REV A Standard Specification for Fuel Oils
ASTM D 975 : 2026 : REV B Standard Specification for Diesel Fuel
ASTM D 7467 : 2023 Standard Specification for Diesel Fuel Oil, Biodiesel Blend (B6 to B20)

£51.67
Excluding VAT