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 suitable to determine the oxidation stability of distillate fuel oils with accelerated method. It adopts metal bath structure. No need to add water during determination. Clean and eco-friendly. Easy to operate.It is the preferred automated instrument to determine the oxidation stability of distillate fuel oils for the units of petroleum mining, producing and using and other relevant colleges and scientific research institutions.