BS EN ISO 16773-4:2017 - Page 2

Electrochemical impedance spectroscopy (EIS) on coated and uncoated metallic specimens. Examples of spectra of polymer-coated and uncoated specimens | Status: Confirmed, Current

1 Scope This document gives some typical examples of impedance spectra of polymer-coated and uncoated specimens (see Annex A). Some guidance on interpretation of such spectra is also given. Further examples of spectra of low-impedance systems (range from, e.g. 10 Ω to 1 000 Ω) are given in ISO/TR 16208 and in ASTM G106. ISO 16773‑2 gives guidelines for optimizing the collection of EIS data with focus on high-impedance systems.