ABSTRACT
Current standard test methodologies used in determining the presence of vapor inhibition ability of the different volatile corrosion inhibitors are qualitative and limited in their ability to differentiate between the anti-corrosive effect of inhibitor in liquid and powder. They also have intrinsic limitation in their applicability to determine the ability of the different volatile corrosion inhibitors in reducing active corrosion rate providing protection to pre-corroded ferrous metals. The aforementioned limitations raise the need to look for other methods for rapid and quantitative evaluation for this class of corrosion inhibitors. In this study, coupled multi array sensor technology was evaluated for its ability to overcome these limitations. The results obtained showed the ability of this technology to provide consistent and repeatable results, differentiate quantitatively between the anti-corrosive effects of the different VCI materials Indicate performance differences between VCI in powder versus liquid forms in VIA testing environment, and determine VCI materials that can reduce active corrosion rate and provide protection to pre-corroded surfaces
