UOP 741-86 is a laboratory method for evaluating the paraffin and naphthene distribution by carbon number in saturated petroleum distillates by gas chromatography. For buyers comparing analytical standards, it supports a clearer view of hydrocarbon composition in distillate streams and helps relate sample makeup to refining, quality, and product characterization work. UOP 741-86 is most relevant when a refinery or laboratory needs a structured, repeatable way to examine saturated petroleum fractions and document compositional trends for technical review or quality assessment.

What is UOP 741-86?

This UOP Test Method is an analytical method focused on measuring the carbon-number distribution of paraffins and naphthenes in saturated petroleum distillates. The title indicates a gas chromatographic approach, so the method is intended for laboratory characterization of hydrocarbon composition rather than general specification testing. In practice, UOP 741-86 helps define how saturated distillate samples are distributed across carbon numbers, which can be useful for method selection, product comparison, and internal documentation of petroleum composition.

Where is UOP 741-86 used?

UOP 741-86 is commonly used in petroleum laboratories, refinery QA/QC programs, and analytical groups that review distillate composition by gas chromatography. It may also be relevant to fuel testing personnel, petroleum chemists, and technical reviewers who need compositional insight for saturated streams. Because the method addresses paraffin and naphthene distribution, it fits workflows involving sample evaluation, product characterization, and comparison of related petroleum distillates within refinery or laboratory settings.

Why is UOP 741-86 important?

This method matters because carbon-number distribution can provide practical insight into the composition of saturated petroleum distillates, supporting better technical review and more consistent laboratory documentation. UOP 741-86 can help teams compare samples, track changes in product makeup, and strengthen internal quality control records. For organizations that depend on clear analytical data, it offers a defined approach for assessing hydrocarbon distribution in a way that is useful for refinery decisions, laboratory reporting, and product evaluation.

• Gas chromatography-based distillate characterization
• Paraffin and naphthene distribution by carbon number
• Suitable for refinery lab and QA/QC review
• Useful for saturated petroleum sample comparison
• Supports technical documentation and analysis workflows