ASTM D7371 - 14

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

    Active Standard ASTM D7371 | Developed by Subcommittee: D02.04.0F

    Book of Standards Volume: 05.04


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    Significance and Use

    5.1 Biodiesel is a blendstock commodity primarily used as a value-added blending component with diesel fuel.

    5.2 This test method is applicable for quality control in the production and distribution of diesel fuel and biodiesel blends containing FAME.

    1. Scope

    1.1 This test method covers the determination of the content of fatty acid methyl esters (FAME) biodiesel in diesel fuel oils. It is applicable to concentrations from 1.00 to 20 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 maybe expanded from 1 to 100 volume %, however precision data is not available above 20 volume %.

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

    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.


    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

    D975 Specification for Diesel Fuel Oils

    D976 Test Method for Calculated Cetane Index of Distillate Fuels

    D1298 Test Method for Density, Relative Density (Specific Gravity), or API Gravity of Crude Petroleum and Liquid Petroleum Products by Hydrometer Method

    D4052 Test Method for Density, Relative Density, and API Gravity of Liquids by Digital Density Meter

    D4057 Practice for Manual Sampling of Petroleum and Petroleum Products

    D4177 Practice for Automatic Sampling of Petroleum and Petroleum Products

    D4307 Practice for Preparation of Liquid Blends for Use as Analytical Standards

    D4737 Test Method for Calculated Cetane Index by Four Variable Equation

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

    D6299 Practice for Applying Statistical Quality Assurance and Control Charting Techniques to Evaluate Analytical Measurement System Performance

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

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

    E168 Practices for General Techniques of Infrared Quantitative Analysis

    E1655 Practices for Infrared Multivariate Quantitative Analysis

    E2056 Practice for Qualifying Spectrometers and Spectrophotometers for Use in Multivariate Analyses, Calibrated Using Surrogate Mixtures


    ICS Code

    ICS Number Code 75.160.20 (Liquid fuels)

    UNSPSC Code

    UNSPSC Code 15101801(Biodiesel)


    Referencing This Standard

    DOI: 10.1520/D7371-14

    ASTM International is a member of CrossRef.

    Citation Format

    ASTM D7371-14, Standard Test Method for Determination of Biodiesel (Fatty Acid Methyl Esters) Content in Diesel Fuel Oil Using Mid Infrared Spectroscopy (FTIR-ATR-PLS Method), ASTM International, West Conshohocken, PA, 2014, www.astm.org

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