Petroleum testing is the analysis during upstream, midstream, and downstream production processes of petroleum products. It is most commonly used to test petroleum product, its product components, byproducts of crude oil, fuel, natural gas, upstream oil and gas and other formats of petroleum. - The instrument is specially suitable to determine different kinds of colored paints, oil paints, adhesives, solvents and petroleum products which the closed cup flash point is 0°C～100°C. The instrument adopts semiconductor refrigeration device and external water cooling device.The size is small and cooling rate is rapid.Easy to operate. Test sample needed is less. than 2ml for each time (4ml for solid sample and semi-solid sample)