& Retrieval System
Industry engineers state that the ideal corrosion test should be simple, rapid, low cost and able to predict long-term service behaviour. The two most common techniques used which satisfy these requirements are corrosion coupons and probes.
Corrosion coupons have many advantages. Coupons provide accurate results at a reasonable cost. They are simple to use and are able to provide general information that is both quantitative and visual on several types of corrosion, without relying on theoretical approximations. Coupons are also extremely versatile, as they can be used in any type of corrosive environment.
Corrosion coupon analysis usually forms the basis of any corrosion monitoring program.
Almost all probes have electrical connections that allow them to connect to electronic instruments or remote monitoring systems.
The advantage of probes is that they typically provide faster response than corrosion coupons, allowing better identification of the moment that the corrosion rate changed. They also provide quantitative data on the rate of corrosion, which can be translated into impacts, such as wall thickness loss per annum.
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technical catalog section on Probes (Click