BSI PD CEN ISO/TR 5602:2022 2023
$198.66
Sources of error in the use of electrochemical impedance spectroscopy for the investigation of coatings and other materials
| Published By | Publication Date | Number of Pages |
| BSI | 2023 | 62 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 4 | European foreword Endorsement notice |
| 7 | Foreword |
| 8 | Introduction |
| 9 | 1 Scope 2 Normative references 3 Terms and definitions 4 Error in the make-up of the measuring cell 4.1 Roughness of the surface |
| 11 | 4.2 O-ring — Considerations about the precise determination of the exposed area |
| 15 | 4.3 Faulty cell make-up 4.3.1 Optically detectable leaks 4.3.2 Optically non-detectable causes |
| 17 | 4.4 Reference electrodes 4.4.1 General information on the distance between the reference and working electrodes |
| 19 | 4.4.2 Shielding 4.4.3 Air bubble in the reference electrode 4.4.4 Poisoning of the reference electrode 4.4.5 Bleeding of the reference electrode 4.5 Counter electrodes 4.5.1 Relative sizes 4.5.2 Reactive counter electrodes 4.6 Gas inclusions in the measuring cell |
| 20 | 5 Faults caused by electronics incl. shielding 5.1 Faraday cage |
| 23 | 5.2 Extended cable (without active shielding) |
| 24 | 5.3 Cable breaks |
| 25 | 5.4 Contact resistances between metallic contacts and the working electrode/counter electrode |
| 26 | 5.5 Inductivities |
| 27 | 5.6 Measurement range switching |
| 28 | 5.7 Scattering signals in power supply |
| 30 | 5.8 Insufficient signal-to-noise ratio 5.9 Influence of peripheral devices |
| 32 | 6 Parameter selection, measurement range limits 6.1 Open-lead test 6.2 Note on dummy cells – ISO 16773-3 6.3 Unsuitable amplitude |
| 34 | 6.4 Insufficient frequency range |
| 35 | 6.5 Repetition rate for subsequent measurements |
| 36 | 7 Non-stationary measurement conditions 7.1 General |
| 37 | 7.2 Temperature fluctuations |
| 39 | 7.3 Electrolytic conductivity 7.4 Swelling 7.5 Drifting OCP |
| 41 | 7.6 Corroding working electrode 7.7 Reactive counter electrodes 7.8 Gas formation at the counter electrode |
| 42 | 8 Design and selection of equivalent circuit diagrams 8.1 Constant phase element |
| 43 | 8.2 Multiple possibilities for the selection of equivalent circuits |
| 45 | 8.3 Warburg impedance 9 Significance of measurement values from equivalent circuits 9.1 Measurement uncertainty |
| 46 | 9.2 Plausibility analysis |
| 47 | 10 Interpretation of the measurement values of various coating systems 10.1 Pre-treatment |
| 48 | 10.2 Film thickness and measurement surface |
| 49 | 10.3 Number of layers |
| 53 | 10.4 Conditioning 10.5 Generic type of binder 11 Presentation of data |
| 56 | Annex A (informative) Calculation of the coating capacitance |
| 57 | Annex B (informative) Further information on the influence of the double-layer capacitance |
| 58 | Annex C (informative) Estimation of the order of magnitude of an apparent capacitance caused by corrosion |
| 60 | Bibliography |
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