UOP 377-90 is a laboratory test method for Free Sulfur in LPG by Mercury Number, intended to help assess sulfur-related quality in liquefied petroleum gas samples. For buyers comparing analytical standards, this method is relevant when free sulfur control matters for product acceptance, handling, or downstream performance review. It is a practical reference for laboratories that need a defined approach to evaluate LPG samples in a refinery or fuel-testing setting, supporting consistent technical review and documentation. UOP 377-90 is suited to organizations that rely on clear, repeatable petroleum test methods.

Overview of UOP 377-90

This UOP test method focuses on the measurement of free sulfur in LPG using the mercury number approach, placing it within a specialized petroleum laboratory analysis context. As a UOP method, UOP 377-90 is intended for technical teams that need a standardized way to examine sulfur-related properties in liquefied petroleum gas. The method supports controlled sample evaluation and helps align internal testing practices with a recognized analytical document. It is most useful when the buyer needs a method tied closely to LPG quality characterization rather than broad product description.

Laboratory use of UOP 377-90

UOP 377-90 may be used by laboratory analysts, QA/QC personnel, and technical reviewers working with LPG sample testing in refinery or petrochemical environments. It can support routine product checks, incoming material review, or specification-related analysis where free sulfur is a concern. In practice, the method is relevant to teams responsible for sample evaluation, analytical reporting, and quality verification. Because it is centered on a specific sulfur-related determination, it fits workflows where reliable documentation and method consistency are important to daily laboratory operations.

Why UOP 377-90 matters in day-to-day work

In day-to-day use, UOP 377-90 helps teams maintain a consistent approach to assessing free sulfur in LPG, which can support product comparison and quality control decisions. For laboratories and technical groups, having a defined UOP test method can improve clarity in reporting and reduce ambiguity during method selection. It is especially useful when results need to be reviewed across different shifts, sites, or internal quality systems. UOP 377-90 gives refinery and laboratory personnel a practical reference for documenting sulfur-related LPG analysis with greater confidence.

• Free sulfur evaluation in LPG
• Mercury number analytical approach
• Refinery and laboratory quality control
• Sample review for LPG product assessment
• Useful for analysts and technical reviewers
• Supports standardized test documentation