ISO 16773-3-2016 PDF

Full title and description

Electrochemical impedance spectroscopy (EIS) on coated and uncoated metallic specimens — Part 3: Processing and analysis of data from dummy cells. This part of ISO 16773 provides procedures and guidance for evaluating the experimental set-up used when performing EIS on high-impedance coated samples by using dummy cells to simulate such samples and to validate measurement, fitting and presentation procedures.

Abstract

ISO 16773-3:2016 specifies a procedure for evaluating the experimental set-up used for carrying out EIS on high-impedance coated samples. Dummy cells are described and used to simulate high-impedance coated specimens; guidance is given on equivalent circuits, measurement practice, curve fitting and data presentation. The part also highlights susceptibility to electromagnetic interference and recommends appropriate measures (for example use of Faraday cages) and complementary dummy cells for low and medium impedance checks.

General information

• Status: Published (confirmed).
• Publication date: 2016 (Edition 2, April 2016).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 87.040 (Paints and varnishes / coatings testing).
• Edition / version: Edition 2 (2016).
• Number of pages: 11.

Scope

This part of ISO 16773 defines procedures to evaluate and validate the experimental arrangement for EIS measurements on high-impedance coated specimens using dummy cells. It covers the selection and use of dummy-cell equivalent circuits, test measurements, curve-fitting strategies and presentation of results with consideration of artefacts (notably electromagnetic interference). The guidance supports increased confidence in EIS test protocols for intact or high-impedance coating systems.

Key topics and requirements

• Use of dummy cells to simulate high-impedance coated specimens for setup validation.
• Recommended equivalent-circuit models for dummy cells and guidelines for curve fitting and parameter extraction.
• Measurement practice and data-presentation conventions for EIS on coated specimens.
• Considerations for electromagnetic interference and recommendations such as using a Faraday cage when measuring high-impedance samples.
• Guidance on complementary dummy cells in low and medium impedance ranges for broader setup checks.

Typical use and users

Applied by corrosion and coatings laboratories, materials scientists, test-house technicians, instrument manufacturers and quality/control engineers involved in EIS testing of coated or uncoated metallic specimens. Typical uses include validating EIS measurement systems, benchmarking instrumentation, training, and ensuring reproducible curve fitting and data presentation practices when working with high-impedance coatings.

Related standards

ISO 16773-3 is part of the ISO 16773 series on EIS for coated and uncoated metallic specimens. Relevant companion parts include: ISO 16773-1 (Terms and definitions), ISO 16773-2 (Collection of data — measurement guidance and data validation) and ISO 16773-4 (Examples of spectra for polymer-coated and uncoated specimens). These parts together cover terminology, measurement practice, dummy-cell validation and example spectra to support consistent EIS testing of coatings.

Keywords

electrochemical impedance spectroscopy; EIS; dummy cell; coated specimens; high-impedance; equivalent circuit; curve fitting; Faraday cage; electromagnetic interference; coatings testing; corrosion testing.

FAQ

Q: What is this standard?

A: ISO 16773-3:2016 is the part of the ISO 16773 series that provides procedures for processing and analysing EIS data obtained from dummy cells used to validate EIS experimental set-ups for high-impedance coated specimens.

Q: What does it cover?

A: It covers the use and modelling of dummy cells, recommended equivalent circuits, measurement and curve-fitting guidance, data presentation, and practical considerations (including electromagnetic interference mitigation) for testing high-impedance coatings.

Q: Who typically uses it?

A: Coatings and corrosion laboratories, test-house personnel, instrument manufacturers, materials researchers and quality/control engineers who perform or validate EIS measurements on coated or uncoated metallic specimens.

Q: Is it current or superseded?

A: ISO 16773-3:2016 is the current (second) edition published in 2016; the 2009 edition was withdrawn and replaced by the 2016 edition. The 2016 version was reviewed and confirmed as current in ISO's periodic review process.

Q: Is it part of a series?

A: Yes — ISO 16773-3 is one part of the ISO 16773 series (parts 1–4) addressing terminology, data collection, dummy-cell processing/analysis and example spectra for EIS on coated and uncoated metallic specimens.

Q: What are the key keywords?

A: Electrochemical impedance spectroscopy (EIS), dummy cell, high-impedance coatings, equivalent circuit, curve fitting, electromagnetic interference, Faraday cage, coatings testing.