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 newly designed and is suitable to determine solidifying point of petroleum products. It is widely used in oil exploitation companies, petroleum manufacturers, petroleum users, colleges and scientific research institutes. The material of workbench is stainless steel. It adopts special technology. It is no need to use cooling liquid in cold chamber. The cooling rate is fast and efficiency is high. The instrument adopts bench structure. The design is simple and easy to use.