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This paper presents application experience of the controlled, unmanned system and technologies that allowed predicting of corrosion conditions and other possible damage to underground pipelines.
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The Bresle patch method is defined by ISO 8502-9. This standard establishes the equivalence of other methods for measuring the level of contamination of salts to results of that same Bresle patch method.
A previous paper presented by the authors at SSPC 2015 demonstrated the futility and folly of attempting to use accelerated corrosion testing as a tool for predicting real world corrosion performance. The effect of corrosion was shown to be governed by the type of ions and the concentration of oxygen in the corrosion environment. By understanding these two factors, accelerated corrosion testing can, however, be used as an indicator of performance which may be encountered in the real world.
The use of coatings in service environments where soluble salt contamination of the substrate is suspected. Detection, removal, and testing. Cost-to-benefit ratio.
The purpose of this technical committee report is to increase railcar industry awareness of nonvisible surface contamination (NVSC), its impact, and its removal before coating application to the railcar. For the purpose of this report, NVSC is defined as any substance that may affect coating performance and does not leave a visible deposit on a bare or previously coated carbon steel surface. This report discusses how NVSC may have a harmful effect on the performance and lifespan of a coating system. This report also identifies types of NVSC and methods for its removal.