ASTM D8267-24

Overview

ASTM D8267-24 is the internationally recognized standard test method for the determination of total aromatic, monoaromatic, and diaromatic content in aviation turbine fuels using gas chromatography with vacuum ultraviolet absorption spectroscopy detection (GC-VUV). Issued by ASTM International, this method is essential for analyzing the class group composition of jet fuels, allowing for quality control, performance evaluation, and compliance with critical industry and regulatory requirements.

This analytical procedure is designed for aviation turbine engine fuels, including synthetic alternatives, enabling laboratories to quantitatively determine aromatic compound classes by percent mass and percent volume. The test supports the effective monitoring and assurance of fuel quality for safe and efficient jet engine operation.

Key Topics

• Determination of Aromatic Content: Measures the total aromatic, monoaromatic, and diaromatic hydrocarbons in aviation fuels, imperative for assessing combustion performance and meeting quality specifications.
• GC-VUV Technology: Utilizes gas chromatography coupled with vacuum ultraviolet absorption spectroscopy to separate and accurately quantify classes of aromatic compounds. The VUV detector resolves coeluting compounds through absorbance spectra and deconvolution algorithms.
• Applicability Range: Suitable for samples with 0.487% to 27.876% total aromatics by volume, 0.49% to 27.537% monoaromatics, and 0.027% to 2.523% diaromatics. Not applicable to fuels with a final boiling point above 300°C containing significant polyaromatic content.
• Test Method Scope: Focuses on classes and specific individual compounds; does not identify or quantify every individual hydrocarbon species but groups them into relevant classes.
• Precision and Quality Control: Includes statistical quality assurance techniques to evaluate repeatability and reproducibility of results. Calls for regular quality control sample testing to ensure method consistency.

Applications

• Aviation Fuel Compliance and Certification: Vital for fuel producers, refineries, and laboratories to verify that jet fuels meet stringent industry and environmental specifications, such as ASTM and governmental standards for aromatic hydrocarbon content.
• Performance Evaluation: Provides data on class group composition, which directly impacts combustion properties, smoke point, and thermal stability of aviation fuels.
• Alternative and Synthetic Fuels Assessment: Applies to synthetic and alternative jet fuels that fall within the specified boiling range, supporting the adoption of sustainable aviation fuels.
• Research and Development: Facilitates the study and optimization of fuel blends and additives for improved engine efficiency and reduced emissions.

Related Standards

For comprehensive quality control and analytical methods in the petroleum and aviation sectors, reference these related ASTM standards:

• ASTM D1840: Test Method for Naphthalene Hydrocarbons in Aviation Turbine Fuels by Ultraviolet Spectrophotometry
• ASTM D4057: Practice for Manual Sampling of Petroleum and Petroleum Products
• ASTM D4175: Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
• ASTM D5186: Determination of Aromatic Content and Polynuclear Aromatic Content of Diesel Fuels by Supercritical Fluid Chromatography
• ASTM D6379: Determination of Aromatic Hydrocarbon Types in Aviation Fuels and Petroleum Distillates by High Performance Liquid Chromatography
• ASTM D6299: Statistical Quality Assurance and Control Charting Techniques
• ASTM D6730: Determination of Individual Components in Spark Ignition Engine Fuels by Capillary High-Resolution Gas Chromatography
• ASTM D6792: Quality Management Systems in Petroleum Products Testing Laboratories

Practical Value

Implementing ASTM D8267-24 enables stakeholders in the aviation fuel supply chain to:

• Ensure compliance with international and governmental fuel quality regulations
• Maintain high safety standards for aircraft operation
• Optimize engine performance through accurate characterization of jet fuel composition
• Support sustainable aviation fuel initiatives and verify eligibility under current specifications

By leveraging the robust and precise methodology outlined in ASTM D8267-24, organizations can advance fuel quality assurance and reinforce operational reliability in the aviation industry.