Brine spray test equipment is an environmental test to evaluate the corrosion resistance of products or metal materials by the artificial salt spray test environment created by salt spray test equipment. It is one of the "Three Prevention" (damp heat, salt fog and mold) test equipment for artificial climate environment. It is an important test equipment to study the environmental adaptability and reliability of machinery, national defense industry, light industry, electronics, instruments and other industries. It is an environmental test that mainly uses the artificial simulated salt spray environmental conditions created by the salt spray test equipment to evaluate the corrosion resistance of products or metal materials. It is divided into two categories, one is natural environmental exposure test, the other is artificial accelerated simulated salt spray environmental test. Artificial simulated salt spray environment test is to use a test equipment with a certain volume space - salt spray test chamber to create a salt spray environment in its volume space by artificial method to evaluate the salt spray corrosion resistance and quality of products.