Each car manufacturer uses different standards for this aspect:
With the automotive company, the standard adopted is the GMW14872 standard. Corrosion test process, Including salt spray, room temperature storage, humidity storage, dry storage and other stages.
Chrysler, the standard adopted is the SAEJ2334 standard, and the test process includes Three stages of humidity storage, salt spray and high temperature storage. Nissan cars are generally
Divide the whole cycle into neutral smog corrosion, dry retention, and wet preservation. The total time is 8 hours. China generally adopts the SMC30054 standard, first spray Sprinkle the smoke for 6 hours, then store it under high temperature, high humidity and high temperature drying.