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Presented by Q-Lab
GMW 14872, Cyclic Corrosion Laboratory Test is a modern accelerated laboratory test standard that improves significantly upon General Motors’ previous cyclic corrosion test, GM 9540P. Although that standard was used widely and included innovations such as direct application of salt solution via shower spray, the test required physical relocation of specimens during testing.
GMW 14872 takes advantage of advances in corrosion tester technology, including the controlled relative humidity featured in instruments like the Q-FOG CRH tester. This standard builds upon the framework of GM 9540P, using of shower spray rather than fog, significant amount of time at a fixed relative humidity setting between 50 – 80%, a salt solution with low deliquescence relative humidity, and the requirement of corrosion coupons. These methods lead to a more reliable and repeatable test that better simulates a natural exposure, but also require increased operator proficiency and knowledge to be performed correctly.
During this webinar, we will review the GMW 14872 standard, and explain how to successfully perform it in a Q-FOG CRH cyclic corrosion chamber.
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This webinar will be presented in English.
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