UOP 1021-19 is a laboratory determination method for measuring trace methyl mercaptan, ethyl mercaptan, and isopropyl disulfide in polymer grade ethylene and propylene by gas chromatography mass spectrometry. It is intended for professionals who need a standardized way to evaluate very low-level sulfur compounds that can affect product quality, downstream processing, and analytical comparability. For laboratories and technical teams working with polymer-grade olefins, this method supports consistent sample review, clearer quality decisions, and documented trace analysis using a recognized UOP reference.

Purpose of UOP 1021-19

The purpose of UOP 1021-19 is to provide a defined analytical approach for determining trace sulfur species in polymer grade ethylene and propylene. Because the method focuses on methyl mercaptan, ethyl mercaptan, and isopropyl disulfide, it is relevant where very small impurity levels must be checked with repeatable laboratory practice. As a UOP determination method, it helps analysts and technical reviewers apply a consistent measurement framework for product evaluation, especially when trace component control is important for specification review or process awareness.

Laboratory use of UOP 1021-19

UOP 1021-19 is commonly suited to analytical laboratories supporting petrochemical and polymer-grade olefin testing. It may be used by laboratory analysts, analytical chemists, and refinery or plant QA/QC personnel who handle ethylene and propylene sample evaluation. The gas chromatography mass spectrometry basis makes it relevant for labs that need an established method for trace sulfur determination and technical documentation. It can also support method selection and internal review when product quality teams compare results across batches or work toward consistent laboratory reporting.

Practical value of UOP 1021-19

For day-to-day laboratory work, UOP 1021-19 helps make trace impurity checks more consistent and easier to document. That matters when teams need to compare polymer grade olefin samples, verify quality trends, or support release decisions with a recognized analytical reference. The method can strengthen laboratory consistency by giving technical staff a common basis for determining specific sulfur compounds at trace levels. For product quality specialists and reviewers, it also supports clearer communication between sampling, testing, and decision-making functions.

• Trace sulfur compound determination
• Polymer grade ethylene and propylene
• GC-MS based laboratory analysis
• QA/QC and sample review support
• Analytical consistency and documentation
• Suitable for technical and quality teams