Combination Corrosion Coupon Testing Needed for Today's Control Equipment
Studies of both laboratory and field data collected by Purafil, Inc. has shown that using copper corrosion alone as a gauge for equipment reliability can seriously understate the corrosive potential of the local environment. Examination of both silver and gold corrosion data have shown instances of an environment which is noncorrosive to copper being extremely corrosive to silver and/or gold. It is because of results such as these that any testing which attempts to predict electrical/electronic equipment reliability should incorporate copper, silver, and gold corrosion as determinants.
Author(s): Muller, C.O