ISO 16773-2:2007

ISO 16773-2:2007 provides guidance on optimizing the collection of EIS data from high-impedance systems. High impedance in the context of intact coatings refers to systems with an impedance greater than 109 ohm�cm2. This does not preclude measurements on systems with lower impedance.
ISO 16773-2:2007 deals with

instrumental set-up: requirements and pit-falls;
data validation: checking the measurement range and the accuracy of the data;
performing an EIS measurement: specimen considerations and instrumental parameters;
the experimental results: different methods of presenting EIS data.

It does not give guidelines for the interpretation of the data.