ASTM D6591-19
Standard Test Method for Determination of Aromatic Hydrocarbon Types in Middle Distillates—High Performance Liquid Chromatography Method with Refractive Index Detection

Standard No.

ASTM D6591-19

Release Date

2019

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM D6591-19

Scope

1.1 This test method covers a high performance liquid chromatographic test method for the determination of monoaromatic, di-aromatic, tri+-aromatic, and polycyclic aromatic hydrocarbon contents in diesel fuels and petroleum distillates boiling in the range from 150 °C to 400 °C. The total aromatic content in % m/m is calculated from the sum of the corresponding individual aromatic hydrocarbon types. NOTE 1—Aviation fuels and petroleum distillates with a boiling point range from 50 °C to 300 °C are not determined by this test method and should be analyzed by Test Method D6379 or other suitable equivalent test methods. 1.2 The precision of this test method has been established for diesel fuels and their blending components, containing from 4 % to 40 % (m/m) mono-aromatic hydrocarbons, 0 % to 20 % (m/m) di-aromatic hydrocarbons, 0 % to 6 % (m/m) tri+-aromatic hydrocarbons, 0 % to 26 % (m/m) polycyclic aromatic hydrocarbons, and 4 % to 65 % (m ⁄m) total aromatic hydrocarbons. 1.3 Compounds containing sulfur, nitrogen, and oxygen are possible interferents. Mono-alkenes do not interfere, but conjugated diand poly-alkenes, if present, are possible interferents. 1.4 By convention, this standard defines the aromatic hydrocarbon types on the basis of their elution characteristics from the specified liquid chromatography column relative to model aromatic compounds. Quantification is by external calibration using a single aromatic compound, which may or may not be representative of the aromatics in the sample, for each aromatic hydrocarbon type. Alternative techniques and methods may classify and quantify individual aromatic hydrocarbon types differently. 1.5 Fatty Acid Methyl Esters (FAME), if present, interfere with tri+-aromatic hydrocarbons. If this method is used for diesel containing FAME, the amount of tri+-aromatics will be over estimated. 1.6 This test method includes a Relative Bias section for Test Method D6591 versus Test Method D1319 and Test Method D5186 versus Test Method D6591 for diesel fuels only. The applicable concentration ranges of the correlations are presented in the Relative Bias section. The correlations are applicable only in the stated ranges. 1.7 This test method and correlations were developed for diesel samples not containing biodiesel; the presence of biodiesel will interfere with the results. The correlation equations are only applicable between these concentration ranges and to diesel fuels that do not contain biodiesel. 1 This test method is under the jurisdiction of ASTM Committee D02 on Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of Subcommittee D02.04.0C on Liquid Chromatography. This test method is based on material published in IP Standard Methods for Analysis and Testing of Petroleum and Related Products and British Standard 2000 Parts, copyright The Institute of Petroleum, 61 New Cavendish Street, London W1M 8AR. Adapted with permission of The Institute of Petroleum. Current edition approved June 1, 2019. Published August 2019. Originally approved in 2000. Last previous edition approved in 2018 as D6591 – 18. DOI: 10.1520/D6591-19. *A Summary of Changes section appears at the end of this standard Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States 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. 1 1.8 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. 1.9 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.

ASTM D6591-19 Referenced Document

• ASTM D1319 Standard Test Method for Hydrocarbon Types in Liquid Petroleum Products by Fluorescent Indicator Adsorption
• ASTM D2425 Standard Test Method for Hydrocarbon Types in Middle Distillates by Mass Spectrometry
• ASTM D4057 Standard Practice for Manual Sampling of Petroleum and Petroleum Products
• ASTM D4177 Standard Practice for Automatic Sampling of Petroleum and Petroleum Products
• ASTM D5186 Standard Test Method for Determination of Aromatic Content and Polynuclear Aromatic Content of Diesel Fuels and Aviation Turbine Fuels by Supercritical Fluid Chromatography
• ASTM D6379 Standard Test Method for Determination of Aromatic Hydrocarbon Types in Aviation Fuels and Petroleum Distillates-High Performance Liquid Chromatography Method with Refractive Index Detection
• ASTM D6708 Standard Practice for Statistical Assessment and Improvement of Expected Agreement Between Two Test Methods that Purport to Measure the Same Property of a Material*， 2024-03-01 Update

ASTM D6591-19 history

• 2019 ASTM D6591-19 Standard Test Method for Determination of Aromatic Hydrocarbon Types in Middle Distillates—High Performance Liquid Chromatography Method with Refractive Index Detection
• 2018 ASTM D6591-18 Standard Test Method for Determination of Aromatic Hydrocarbon Types in Middle Distillates—High Performance Liquid Chromatography Method with Refractive Index Detection
• 2011 ASTM D6591-11(2017) Standard Test Method for Determination of Aromatic Hydrocarbon Types in Middle Distillates&x2014;High Performance Liquid Chromatography Method with Refractive Index Detection
• 2011 ASTM D6591-11 Standard Test Method for Determination of Aromatic Hydrocarbon Types in Middle Distillatesmdash;High Performance Liquid Chromatography Method with Refractive Index Detection
• 2006 ASTM D6591-06 Standard Test Method for Determination of Aromatic Hydrocarbon Types in Middle Distillates-High Performance Liquid Chromatography Method with Refractive Index Detection
• 2000 ASTM D6591-00 Standard Test Method for Determination of Aromatic Hydrocarbon Types in Middle Distillates-High Performance Liquid Chromatography Method with Refractive Index Detection