DIN Standards Committee Coatings and Coating Materials
DIN EN ISO 17463
Paints and varnishes - Guidelines for the determination of anticorrosive properties of organic coatings by accelerated cyclic electrochemical technique (ISO 17463:2014); German version EN ISO 17463:2014
Beschichtungsstoffe - Richtlinie zur Bestimmung der antikorrosiven Eigenschaften organischer Beschichtungen durch beschleunigte zyklische elektrochemische Verfahren (ISO 17463:2014); Deutsche Fassung EN ISO 17463:2014
Overview
The standard describes the determination of the anticorrosive properties of organic coatings by means of the accelerated cyclic electrochemical technique (ACET). The method is based on the so called AC/DC/AC procedure. The technique allows comparing the protective and anticorrosive properties of different coating systems on metal in short times and in a qualitative and quantitative way. ACET consists of the application of cycles of EIS (electrochemical impedance spectroscopy) measurements, cathodic polarizations and potential relaxation. Degradation of the coating system is accelerated by the cathodic polarization. EIS and potential relaxation monitor the change of the coating system induced by the cathodic polarization. The technique evaluates the permeability of the coating and properties which can be attributed to adhesion to the substrate. The committee responsible for this standard is NA 002-00-07 AA "Allgemeine Prüfverfahren für Beschichtungsstoffe und Beschichtungen" ("General test methods for coating materials and coatings").
Document: references other documents
Responsible national committee
NA 002-00-07-17 GAK - Joint working group NAB/NMP: Electrochemical methods
Responsible european committee
CEN/TC 139 - Paints and varnishes
Responsible international committee
ISO/TC 35/SC 9 - General test methods for paints and varnishes
