Tester
Passi Test is a tool designed for those who need to know exactly the real quality of stainless steel. Composed of a "probe pen" - which will be placed on the surface to be tested - containing the electrochemical system and an external unit on which the reading takes place, Passi Test measures the open circuit potential and the nobility of a metal (and consequently its resistance to corrosion).
The test, neither destructive nor harmful, is fast (the result is obtained in about 15 seconds) and numerical: while the other passivation tests, purely chemical, are based on the interpretation of a color (ferrocyanide test), giving a given highly subjective and often distorted by superficial impurities, Test Stepsreleases an exact and unavoidable numerical value.
The internal system of Test Steps is calibrated to have zero as a discriminating point: if a value greater than zero emerges, stainless steel is passivated, if the value is less than zero, passivation is scarce or zero. In this way it is also possible to make comparisons between different stainless steels: the more the value is above zero, the better the passivation status of the sample; the more the value is below zero the worse the passivation state of the tested stainless steel will be.