The Coupon Test measures the amount of corrosion formation on copper and silver surfaces. This provides data allowing an industry standard classification of the amount of corrosion present as well as identifying contaminant classes.
Because many contaminants are corrosive in nature (e.g., hydrogen sulfide and sulfure dioxide), reactivity monitors have long been used to gauge the quality of ambient air and to indicate the effectiveness of pollution control strategies.
Typical applications:
- Industrial Control Rooms
- Data Centers
- Museums and Archives
- Outside Air Intakes
Copper and Silver Analysis
After an istallation period of 30 -90 days, the coupons are returned to our laboratory for analysis. The purpose of coupon analysis is to determine the type and thickness of corrosion deposits on the surface of each coupon. Coupons are analyzed using Coulometric Reduction and identifies the type of contaminant. A corrosion reactivity rate is calculated by measuring the amount of time the coupon is exposed to the environment and thickness of the corrosion present. Different individual corrosion films can be recognized in this process and can give information about the gases that have caused the corrosion.
