Anti-corrosive coating film`s ion permeability determining method, involves supplying measuring voltage to electrodes, measuring current flow and calculating permeability from current flow per surface unit of film and Faraday constant

摘要

The method involves fluid-tightly fixing a coating film of an anti corrosive coating in a device for determining an ion permeability, where the device has anode and cathode chambers filled with electrolyte solution. A measuring voltage is supplied to electrodes of the anode and cathode chambers and a current flow is measured. The ion permeability is calculated from the current flow per surface unit of the film and a Faraday constant.