ASTM D7371-14 - 1.10.2014
 
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

D4052-22

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

E2056-04(2024)

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

E1655-17(2024)

Standard Practices for Infrared Multivariate Quantitative Analysis

E168-16(2023)

Standard Practices for General Techniques of Infrared Quantitative Analysis

D7467-23

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

D6751-24

Standard Specification for Biodiesel Fuel Blendstock (B100) for Middle Distillate Fuels

D6299-26

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

D5854-25

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

D4737-21

Standard Test Method for Calculated Cetane Index by Four Variable Equation

D4307-17(2021)

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

D4057-22

Standard Practice for Manual Sampling of Petroleum and Petroleum Products

D4177-22e1

Standard Practice for Automatic Sampling of Petroleum and Petroleum Products (Includes all amendments and changes 3/24/2023).

D976-21e1

Standard Test Method for Calculated Cetane Index of Distillate Fuels (Includes all amendments and changes 2/23/2023).

D1298-24

Standard Test Method for Density, Relative Density, or API Gravity of Crude Petroleum and Liquid Petroleum Products by Hydrometer Method

D975-26b

Standard Specification for Diesel Fuel (Includes all amendments and changes 3/31/2026).