Analytical Systems Int`l. KECO was established in 1984 employing staff with over 40 years of analytical experience providing field proven liquid and gas phase on-line continuous process analyzers to the gas processing, pipeline, refining, chemical, offshore platforms, shipping vessels, petrochemical and water processing industries worldwide. Many ASTM methods, patents, and exclusive features are utilized with our analyzers. In addition to the analyzers on the left column, full support for the Houston Atlas Tracor H2S and Total Sulfur analyzers are available.