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 used to determine the oxidation stability of steam turbine with the same composition (oil base oil and additive) .Also can be used to determine new mineral insulating oil containing 2, 6-BHT. The metal bath design eliminates the harm of oil fume and environmental pollution to the operator, and simplifies the operation. The software design has a high degree of automation, which fully considers the user's operating habits and standard requirements, and can automatically complete a series of operations. In appropriate time, the interface will pop up prompt text to guide the user to carry out the next correct operation and avoid errors.