The InfraCal2 Soot Meter provides an easy-to-use ASTM approved test method for measuring percent soot in diesel engine lubricating oils. The Soot Meter is based on proven IR technology, originally developed by Wilks, and is used in lubrication oil and engine testing laboratories worldwide. It is also ideal for truck, bus or off-highway fleets, onboard ships, construction or mining sites and power generation stations.