ISO 16773-2-2016 PDF

Full title and description

ISO 16773-2:2016 — Electrochemical impedance spectroscopy (EIS) on coated and uncoated metallic specimens — Part 2: Collection of data. This part gives practical guidelines for optimizing acquisition of EIS data, with emphasis on high-impedance coated systems while remaining applicable to lower-impedance measurements.

Abstract

Provides guidance on instrumental set-up (requirements and pitfalls), data validation (checking measurement range and accuracy), specimen considerations and instrumental parameters for performing EIS measurements, and methods for presenting experimental EIS results. The document is intended to ensure acquisition of usable EIS data but does not provide interpretation procedures. Focus is placed on high-impedance systems (intact coatings typically > 10^9 Ω·cm²).

General information

• Status: Published (International Standard, confirmed stage).
• Publication date: April 2016 (Edition 2, 2016).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 87.040 (Paints and varnishes / corrosion and coatings testing).
• Edition / version: Edition 2 (2016).
• Number of pages: 24 (ISO edition data).

Key bibliographic details above are taken from the ISO bibliographic record for ISO 16773-2:2016.

Scope

Guidance for collection of electrochemical impedance spectroscopy (EIS) data on both coated and uncoated metallic specimens. Topics include recommended experimental arrangements and instrument settings, checks and validation of the measured data and measurement range, specimen preparation/considerations, and recommended ways of presenting EIS results. The part concentrates on high-impedance coated systems but does not cover interpretation of spectra.

Key topics and requirements

• Instrumental set-up: recommended connections, cell arrangements, common pitfalls to avoid.
• Measurement parameters: frequency range selection, excitation amplitude, stabilization and equilibration practices.
• Data validation: checking instrument limits, verifying accuracy, recognising artefacts and noise in high-impedance measurements.
• Specimen considerations: electrode configuration, coating integrity, sample conditioning and mounting.
• Presentation of results: recommended plots and tabulations of impedance data for reporting and comparison.
• Scope limitation: does not provide methods for interpretation or modelling of EIS data.

Typical use and users

Used by corrosion and coatings laboratories, materials scientists, QA/QC teams in coatings and metals industries, test houses, instrument manufacturers, and researchers performing electrochemical impedance spectroscopy to characterise coating performance and corrosion-related properties. It is useful for establishing reproducible measurement protocols and for training technicians in data acquisition.

Related standards

ISO 16773 is a multi-part series; related and referenced documents include ISO 16773-1 (terms and definitions), ISO 16773-3 (processing and analysis of data from dummy cells), ISO 16773-4 (examples of spectra), and other relevant documents such as ISO/TR 16208 (electrochemical impedance test guidance) and corrosion/coating test standards (for example ISO 9227 salt spray and ISO 2808 film thickness methods).

Keywords

electrochemical impedance spectroscopy; EIS; coatings; coated specimens; uncoated metallic specimens; high-impedance; data collection; measurement protocol; corrosion testing; paints and varnishes.

FAQ

Q: What is this standard?

A: ISO 16773-2:2016 is the second part of the ISO 16773 series and provides guidance specifically on the collection/acquisition of EIS data for coated and uncoated metallic specimens.

Q: What does it cover?

A: It covers experimental setup and instrument considerations, measurement parameters, specimen handling, data validation and presentation methods. It does not cover interpretation or modelling of impedance spectra.

Q: Who typically uses it?

A: Corrosion and coatings labs, materials researchers, QA/QC engineers in coatings and metal industries, instrument vendors, and test houses—anyone needing robust, reproducible EIS data acquisition procedures.

Q: Is it current or superseded?

A: ISO 16773-2:2016 is the current published edition (Edition 2, 2016). The part was published in 2016 and recorded as a published/confirmed international standard in ISO records. Users should check the ISO catalogue for any later confirmations or revisions beyond 2016 when planning long-term compliance.

Q: Is it part of a series?

A: Yes — ISO 16773 is a multipart series. Part 1 defines terms and definitions; Part 2 covers data collection; Part 3 covers processing and analysis (dummy cells); Part 4 gives example spectra. The series is managed by ISO/TC 35/SC 9 (paints and varnishes).

Q: What are the key keywords?

A: EIS, electrochemical impedance spectroscopy, coatings, coated specimens, high-impedance systems, data collection, corrosion testing, paints and varnishes.