Sitelab's, CAL-056 and CAL-057, are used to measure (Oil and Grease) hydrocarbons in the C15 to C50 range. This test matches well to U.S. EPA 1664, 9071B and similar gravimetric methods for oil in water, oil in soil applications.
The UVF-TRILOGY and TD-500D analyzers are fitted with similar optical filters and produce accurate results over a wide range of contaminants. Samples only take a few minutes to extract in the solvent and analyze. The minimum detection limit is 0.5 ppm.