UOP 565-04

UOP 565-04 is the method buyers choose when they need a clear laboratory approach for measuring acid number and identifying naphthenic acids by potentiometric titration. The standard is relevant where acidic components in petroleum or related process samples may affect product quality, corrosion tendency, or downstream handling. For refinery and laboratory teams, it supports analytical review of sample acidity in a controlled, repeatable format. UOP 565-04 is especially useful when technical groups need a recognized UOP method for product evaluation, comparison, or documentation.

UOP 565-04 method scope

This UOP Test Method focuses on potentiometric titration as an analytical technique for assessing acidity and naphthenic acid presence in suitable samples. Its scope is aligned with laboratory measurement rather than field screening, making it relevant for formal quality checks and technical review. UOP 565-04 is typically considered when a buyer needs a structured method for characterizing acidic behavior in petroleum-derived materials or related chemical samples. The method supports consistent interpretation of acid-related properties within a refinery or testing laboratory workflow.

Where is UOP 565-04 used?

UOP 565-04 is commonly used in petroleum laboratories, refinery QA/QC programs, and analytical environments that evaluate sample acidity as part of routine product or process review. It may be relevant to laboratory analysts, quality specialists, petroleum engineers, and technical reviewers who need a standard method for acid number and naphthenic acid assessment. The method can fit into workflows where sample acceptance, product comparison, or corrosion-related evaluation depends on reliable acidity data. It is a practical reference for organizations managing petroleum or process-quality documentation.

Why professionals use UOP 565-04

Professionals use UOP 565-04 because acidity-related results can affect decision-making in refining, blending, and quality verification. A standardized potentiometric titration method helps teams compare samples consistently, support internal specifications, and maintain clearer analytical records. For laboratory groups, it can improve method selection and reduce ambiguity when reviewing acidic constituents. For technical teams, the value lies in dependable documentation and a recognized framework for evaluating acid number and naphthenic acids in a controlled lab setting.

• Potentiometric titration-based analysis
• Acid number evaluation
• Naphthenic acid assessment
• Refinery and laboratory QA/QC support
• Useful for technical review and documentation
• Relevant to petroleum sample characterization