ASTM D6591
Standard Test Method for Determination of Aromatic Hydrocarbon Types in Middle Distillates—High Performance Liquid Chromatography Method with Refractive Index Detection
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- Language: English
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About This Item
ASTM D6591 is the ASTM standard for determining aromatic hydrocarbon types in middle distillates using high performance liquid chromatography with refractive index detection. It provides a focused laboratory method for measuring aromatic content in fuel-related distillate materials, helping users evaluate composition with a consistent technical approach. For quality control, product comparison, and specification work, this standard supports more reliable data when aromatic hydrocarbon type information is needed.
Purpose of ASTM D6591
The purpose of ASTM D6591 is to define a reproducible test method for identifying and measuring aromatic hydrocarbon types in middle distillates. The standard centers on HPLC separation with refractive index detection, which supports controlled laboratory analysis of the sample’s composition. As a technical document, it helps establish a common basis for results so that testing programs can use a consistent method when aromatic hydrocarbon type data is required for evaluation, reporting, or compliance-related review.
Common use cases of ASTM D6591
This standard is commonly used in laboratory testing of middle distillate materials where aromatic hydrocarbon type information is needed. It is relevant to analytical workflows that rely on high performance liquid chromatography and refractive index detection for sample characterization. ASTM D6591 may be used by testing labs, quality teams, and technical reviewers who need a standardized method for comparing results across batches, suppliers, or internal specifications involving distillate composition.
Why ASTM D6591 matters
ASTM D6591 matters because it helps create consistent, traceable results for a property that can influence product evaluation and acceptance decisions. Using a recognized ASTM standard can improve confidence in laboratory reporting, reduce ambiguity in procurement or specification review, and support better quality control practices. When aromatic hydrocarbon type measurement is part of a specification or test program, this method provides a clear framework for generating comparable data and managing technical risk.
- Middle distillate composition testing
- HPLC-based aromatic type analysis
- Refractive index detection method
- Quality control and result comparison
- Technical review for product evaluation
- Publication Date: 2020-09-10
- Publisher: ASTM
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