ASTM D7371
Standard Test Method for Determination of Biodiesel (Fatty Acid Methyl Esters) Content in Diesel Fuel Oil Using Mid Infrared Spectroscopy (FTIR-ATR-PLS Method)
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About This Item
ASTM D7371 is the standard test method for determining biodiesel, or fatty acid methyl esters, content in diesel fuel oil using mid infrared spectroscopy with an FTIR-ATR-PLS method. It provides a practical way to measure biodiesel content in diesel blends, helping laboratories and fuel handlers support product verification, quality control, and compliance work. By focusing on a spectroscopic approach, this ASTM standard is suited to routine testing where consistent and timely fuel analysis matters.
ASTM D7371 standard overview
The official title of ASTM D7371 identifies a test method based on mid infrared spectroscopy, specifically using FTIR-ATR-PLS analysis, to determine fatty acid methyl esters in diesel fuel oil. In practical terms, the standard is aimed at measuring biodiesel content in diesel-type fuels by instrumental means rather than by more traditional chemical approaches. This makes it relevant to laboratories and organizations that need a defined, repeatable method for fuel characterization and result reporting.
Where is ASTM D7371 used?
This standard is commonly used in fuel testing environments where diesel fuel oil and biodiesel blends are evaluated. It is relevant to laboratories supporting fuel production, distribution, storage, and incoming material checks, especially when there is a need to verify biodiesel content in diesel-based products. ASTM D7371 may also be used in quality assurance workflows that rely on infrared spectroscopy equipment and controlled analytical procedures for consistent measurement.
Practical importance of ASTM D7371
ASTM D7371 matters because it gives users a recognized method for assessing biodiesel content in diesel fuel oil with a spectroscopic technique that can support efficiency and repeatability. For procurement, quality control, and compliance programs, having a defined test method helps reduce uncertainty in fuel evaluation and supports more consistent decision-making. It is especially useful when laboratories need a technical standard that aligns testing practices with a common ASTM reference.
- Mid infrared spectroscopy test method
- Diesel fuel oil analysis
- Biodiesel content determination
- FTIR-ATR-PLS measurement approach
- Quality control and verification use
- Publication Date: 2022-08-12
- Publisher: ASTM
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