UOP 311-92 is the UOP 311-92 test method for Hydrocarbon Types by Fluorescent Indicator Adsorption (FIA), a laboratory procedure used to evaluate the hydrocarbon-type composition of petroleum-related samples. For buyers reviewing analytical standards, this method is relevant when a controlled, repeatable assessment of hydrocarbon classes is needed to support product characterization and quality decisions. It is commonly associated with petroleum testing workflows where hydrocarbon-type information helps refine technical understanding of a sample. For laboratory analysts, refinery QA/QC teams, and technical reviewers, the method provides a defined reference for this specific FIA-based analysis.

Purpose of UOP 311-92

The purpose of UOP 311-92 is to provide a standardized way to determine hydrocarbon types by fluorescent indicator adsorption. In practical terms, the method supports laboratory measurement of how a sample is distributed among hydrocarbon categories, which can be important in petroleum and related chemical evaluations. This makes it useful for organizations that need consistent analytical documentation and a recognized method for comparing samples. As a UOP test method, it is especially relevant where a formal laboratory procedure is required to support technical review, product assessment, or refinery-oriented analysis.

Laboratory use of UOP 311-92

UOP 311-92 is typically used in analytical laboratories that handle petroleum samples, fuel-related materials, or refinery process streams where hydrocarbon-type information matters. It may be reviewed or applied by laboratory analysts, analytical chemists, fuel testing personnel, and refinery QA/QC teams as part of routine sample evaluation or method selection. The official FIA-based title makes it a practical reference for labs that need a recognized approach to hydrocarbon-type analysis and a consistent framework for reporting results in technical documentation.

Practical importance of UOP 311-92

For day-to-day professional use, UOP 311-92 matters because it supports clearer comparison of hydrocarbon composition across samples and test programs. That can help teams judge whether materials are aligned with expected product characteristics, identify differences between batches, and maintain better analytical consistency in laboratory records. In refinery and petroleum QA/QC settings, a defined method also improves technical communication between analysts, engineers, and reviewers. For buyers, this makes the document valuable as a standardized reference for hydrocarbon-type evaluation and method control.

• Hydrocarbon types by FIA
• Petroleum sample characterization
• Refinery laboratory use
• QA/QC and technical review
• Analytical documentation support