DIN Standards Committee Materials Testing
DIN EN ISO 16773-3
Electrochemical impedance spectroscopy (EIS) on coated and uncoated metallic specimens - Part 3: Processing and analysis of data from dummy cells (ISO 16773-3:2016); German version EN ISO 16773-3:2016
Elektrochemische Impedanzspektroskopie (EIS) an beschichteten und unbeschichteten metallischen Proben - Teil 3: Verarbeitung und Analyse von Daten von Testschaltkreisen (ISO 16773-3:2016); Deutsche Fassung EN ISO 16773-3:2016
Overview
This part of ISO 16773 specifies a procedure for the evaluation of the experimental set-up used for carrying out EIS on high-impedance coated samples. For this purpose, dummy cells are used to simulate high-impedance coated samples. On the basis of the equivalent circuits described, this part of ISO 16773 gives guidelines for the use of dummy cells to increase confidence in the test protocol, including making measurements, curve fitting and data presentation. Due to the nature of the measurements, investigations of high-impedance coated samples are more susceptible to artefacts coming from electromagnetic interferences. Therefore, this part of ISO 16773 considers the aspects for measuring high-impedance samples by using appropriate dummy cells in a Faraday cage. However, most manufacturers offer complementary dummy cells in the low and medium impedance range. This allows checking the setup in the respective low impedance range. The responsible committee for this standard is NA 002-00-07-17 AK "Elektrochemische Methoden" ("Electrochemical methods") at DIN.
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
