UOP 411-92 is a chromatography-based laboratory method for evaluating normal paraffins, making it a practical reference for teams that need consistent hydrocarbon analysis and clear sample characterization. The official title, Normal Paraffins by Subtractive Gas Chromatography, indicates a focused analytical approach that supports identification and assessment of normal paraffin content in petroleum-related samples. For refinery laboratories, analytical chemists, and QA/QC personnel, this method can help improve comparison between results, support technical review, and add structure to routine quality work. UOP 411-92 is well suited to buyers looking for a recognized UOP method for chromatography-driven sample evaluation.

What does UOP 411-92 measure?

UOP 411-92 is intended to measure normal paraffins using subtractive gas chromatography, a laboratory technique used to separate and evaluate hydrocarbon components with analytical precision. In practical terms, it supports determination of the normal paraffin fraction or related compositional profile in a sample, depending on the testing context. This makes the method relevant when a lab needs a chromatography method for hydrocarbon analysis, sample comparison, or technical documentation. Because it is a UOP chromatography method, it is especially useful where standardized analytical workflow and comparable reporting are important.

Where is UOP 411-92 used?

UOP 411-92 is commonly used in refinery laboratories, petroleum testing facilities, and analytical labs that handle hydrocarbon samples requiring normal paraffin evaluation. It may also be relevant to petrochemical operations, quality assurance teams, and laboratory analysts responsible for sample review and reporting. In these settings, the method supports routine analytical work, product characterization, and technical verification where chromatography results need to be dependable and comparable across labs or projects. UOP 411-92 can also be useful for internal method selection by specialists reviewing how a sample should be assessed.

Why is UOP 411-92 important?

UOP 411-92 matters because normal paraffin analysis can be an important part of hydrocarbon characterization and quality control. A defined chromatography method helps laboratories maintain consistency, reduce ambiguity in reporting, and support better comparison of results over time or between sites. For QA/QC teams and technical reviewers, it provides a recognized basis for evaluating samples in a way that supports documentation and decision-making. UOP 411-92 is valuable when a buyer needs a practical analytical reference that fits established refinery and laboratory workflows.

• Normal paraffin analysis
• Subtractive gas chromatography
• Hydrocarbon sample characterization
• Refinery laboratory workflow
• QA/QC and technical review
• Comparable analytical reporting