UOP 286-89 is a laboratory test method for Free Sulfur in Distillates by Mercury Number, designed to help professionals evaluate sulfur-related characteristics in distillate materials. For refinery and fuel-testing teams, this kind of method supports product review, quality verification, and technical comparison when free sulfur concerns may affect handling, processing, or documentation. UOP 286-89 is a practical reference for analysts who need a recognized UOP method aligned with petroleum laboratory workflows and controlled sample assessment.

What is UOP 286-89?

UOP 286-89 is a UOP Test Method focused on measuring free sulfur in distillates using the mercury number approach referenced in the official title. It belongs in the category of petroleum laboratory analysis where a specific material property is evaluated for technical and quality-control purposes. Because the method is centered on a defined sulfur-related determination, it is useful for organizations that need a standardized way to characterize distillate samples and document results consistently across laboratory operations.

Where is UOP 286-89 used?

This method is commonly used in refinery laboratories, fuel testing facilities, and petroleum quality-control settings where distillate samples are reviewed against internal or external specifications. Laboratory analysts, QA/QC personnel, and technical reviewers may rely on UOP 286-89 when comparing samples, checking product consistency, or supporting routine documentation. It is also relevant in environments where distillate characterization and sulfur-related evaluation are part of broader sample management and method selection activities.

Why is UOP 286-89 important?

UOP 286-89 matters because it gives technical teams a structured way to assess free sulfur in distillates, helping support consistent laboratory decisions and clearer product records. In day-to-day work, that can improve comparison between batches, strengthen quality-control review, and reduce ambiguity when sulfur-related concerns need to be documented. For organizations managing petroleum testing programs, a recognized UOP method can also help align analytical practice with established internal procedures and reviewer expectations.

• Free sulfur evaluation for distillate samples
• Mercury number-based laboratory method
• Refinery QA/QC and fuel testing support
• Useful for analysts and technical reviewers
• Supports product comparison and documentation