UOP 933-94

UOP 933-94 is a laboratory method for Test Procedures for Plant Deposits, Scales and Sludges, giving technical teams a structured way to examine solid and semi-solid materials collected from process equipment. For buyers responsible for refinery reliability, unit troubleshooting, or sample review, this method helps define a consistent approach to evaluating deposit-related materials that may affect equipment performance or process interpretation. UOP 933-94 is useful when laboratories need a recognized UOP test method to support plant investigation, quality review, or technical documentation tied to fouling and contamination concerns.

What is UOP 933-94?

UOP 933-94 is a UOP Test Method focused on test procedures for plant deposits, scales, and sludges. In practical laboratory terms, it provides a controlled framework for examining these materials as part of petroleum and chemical operations. The method is relevant to analysts who need a consistent reference for evaluating deposit samples from process systems, vessels, or related plant equipment. As a documented analytical method, it supports clearer comparison, recordkeeping, and review of materials that can influence operational diagnosis and maintenance planning.

Where is UOP 933-94 used?

This method is commonly used in refinery laboratories, plant analytical groups, and technical support functions that handle fouling, scale, or sludge samples. Laboratory analysts, refinery QA/QC teams, and process or reliability engineers may use UOP 933-94 when investigating deposits from operating units, storage systems, or other process equipment. It is also relevant for technical reviewers who need standardized documentation for material characterization and plant troubleshooting. The method fits workflows where sample evaluation must support operational decisions, maintenance planning, or comparative review of deposit-related issues.

Why is UOP 933-94 important?

UOP 933-94 matters because deposits, scales, and sludges can affect equipment condition, process stability, and the quality of technical conclusions drawn from plant samples. A defined UOP method helps laboratory and refinery teams work from a common reference when reviewing these materials, reducing ambiguity in sample handling and reporting. For organizations managing reliability or product quality, it supports more consistent analytical documentation and better communication between the lab, operations, and engineering functions. UOP 933-94 is therefore valuable wherever deposit investigation is part of routine technical support.

• Plant deposits, scales, and sludges
• Refinery and process sample review
• Laboratory analytical documentation
• Fouling and contamination investigations
• QA/QC and technical support workflows
• Equipment condition and reliability review