Profile: Chem-Dyne Research Corp. is a manufacturer of computer-based instruments for intermittent and continuous measurement of dynamic, and equilibrium (static) fluid surface tension. Our product line includes SensaDyne QC3000™, QC6000™, IP6000™, PC500-L™, PC500-LV™ and PC1000-R™. Our QC3000™ has a compact design and simple operation for fast, accurate results in laboratory environments. The measurements are taken in the body of the fluid using a patented version of the maximum bubble pressure method, and are unaffected by surface contamination or foaming. The instrument interfaces directly with any IBM or compatible computer, and uses a windows compatible program that allows display, storage, retrieval, and graphing of data. Our QC6000 is a mid-range instrument which adds independent bubble rate mass flow controllers to the features of the QC3000, allowing a wider monitoring range with increased precision and accuracy. It is featured with a compact design which combines simple operation with fast and accurate results. It can generate data for characterizing surfactant formulations for research and development.