EVOLVING STANDARD TEST METHODS FOR VAPOR INHIBITING ABILITY (VIA) FOR CORROSION PROTECTION

The paper provides technical considerations and perspective in the development of recently published NACE standard test method TM 0208-2008 for rapid qualitative evaluation to determine Vapor Inhibiting Ability (VIA) for temporary protection of ferrous metals (VIA-F).  The perspective on the method includes resolution among alternatives for improving repeatability and validity of outcomes, and for rating and reporting results. The paper also provides a framework for initial work toward creating one or more VIA test methods for corrosion protection of non-ferrous metals (VIA-NF), including consideration of benchmark metal specimens and related possibilities for rapid qualitative tests.