With strong roots in agriculture – and corporate headquarters in the heart of the Midwest, it’s easy to understand why Midwest Laboratories, Inc. has expanded its testing services to fuel sources including ethanol and biodiesel. Offering a full-service ethanol laboratory in its Fuel and Wet Chemistry facility, Midwest Laboratories holds ASTM proficiencies in denatured ethanol (ASTM D4806) and biodiesel (ASTM D6751). The Midwest Fuel Department offers testing for ethanol, biodiesel, solvent and petroleum contamination for underground storage tanks and surface spills. Specific to ethanol fuel, Midwest Laboratories offers denaturant testing, a California Air Resource Board (CARB) requirement. In addition, Midwest Laboratories offers a Cold Soak Filtration Test for biodiesel fuel, necessary to the ASTM biodiesel proficiency.