ANSI/ISA-S71.04-2013 is the most common standard used globally for classifying the corrosion severity in electronic and electrical equipment into four levels (G1, G2, G3 and GX). To identify which level of severity occurs, copper and silver metal stripes (coupons) are exposed to the environment for 30 days, which will develop a film of salts and/or oxides. The corrosion potential is measured by film thickness, film chemistry and/or weight gain. A G-class is then assigned based on the table.
For a better corrosion prevention and to always have an overview of the severity level on site we are offering passive monitoring (Viledon Coupons) or online monitoring (Chemwatch) systems.