Corrosion coupons are pre-weighed and measured metal strips which are mounted in a special pipe system called a coupon rack. They are used to estimate the rate of metal corrosion by comparing the initial weight with the weight following 60, 90 or 120 days of exposure to the water in the system.
What Are Corrosion Coupons? - Chardon Labs
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Test coupons are fabricated on the same panel as the PWBs, typically at the edges. Coupons are then inspected to ensure proper layer alignment, electrical connectivity, and cross sectioned to inspect internal structures. Coupons can be designed custom for a PWB or selected from a vendor library.
Coupon (PWB) - Wikipedia
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A primary testing method is Salt Spray testing, which as its name indicates, evaluates how resistant a part or material is to corrosion when exposed to a salt spray for extended periods of time. Effective Salt Spray testing must be performed in a controlled environment, such as a closed salt fog tank.
The Basics of Testing for Corrosion Resistance (Salt Spray, Humidity ...
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The use of carrier testing, or coupon studies, is well established in evaluating the efficacy of a disinfectant against microbial, adventitious agent, or mycoplasma contamination. ... The testing coupons are representative of surfaces in your cleanroom environment (Table 1).
Disinfectant Efficacy (Coupon) Studies - Texcell
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