The ability of resistance to corrosion of the coating on helmet is determined by means of corrosion resistance test.

It is done by suspending the complete helmet inside an enclosed chamber where they are sprayed with a solution of 5 parts of sodium chloride in 95 parts of distilled water (by mass) at room temperature for a period of 24 hours. After this period, the helmet is washed in running tap water, dried, and inspected for signs of corrosion.

For metal parts of helmets, it consists of an acrylic chamber made from clear acrylic sheets. The chamber has a vertical partition at one of the ends forming a reservoir for salt solution. The solution is sprayed with the help of compressed air through two nozzles at right angles to each other. The spraying pressure is regulated with the help of an air regulator. A separate airline is provided to agitate the solution constantly with arrangement to adjust rate of air bubbling through the solution.