PASSI TEST PLUS is a unique equipment that measures the state of passivity, on any kind of stainless surface. This machine creates a database which contains the values (in Volt) of the tested surface. This database represents a certification which guarantees the quality of the passive layer of stainless steel, both when buying and when selling stainless steel products. Passi Test Plus can be used by companies working in the food, petrochemical, chemical and pharmaceutical sectors. Ideal to verify the passivation of the pieces that the company has purchased and that of the pieces the company would like to market.