The ISO 3231 standard, developed by the International Standards Organization (ISO), specifies a procedure for determining the resistance of a single-coat film or multi-coat paint system or related products to humid atmospheres containing sulfur dioxide.
It simulates acid rain or industrial chemical exposure to evaluate the relative corrosion resistance of the coating, substrate, or part itself.
The parts or panels are placed inside a specially designed chamber and exposed to SO2 and moisture before being evaluated for corrosion resistance. allows different amounts of sulfur dioxide; A volume of 0,2 liters, measured at atmospheric pressure, is generally recommended for testing coatings with a thickness not exceeding about 40 µm.
The principle of the stated procedure is to expose a coated test panel to certain humid atmospheres containing sulfur dioxide. The principle of the stated procedure is to expose a coated test panel to certain humid atmospheres containing sulfur dioxide.
Among the services provided by our organization within the framework of material testing services, there are also ISO 3231 standard tests.
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