DIN EN ISO 16773-2-2016 Electrochemical impedance spectroscopy (EIS) on coated and uncoated metallic specimens - Part 2 Collection of data (ISO 16773-2 2016) German version EN ISO .pdf

1、December 2016 English price group 16No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 87.040!%V+“2595108www.din.deDIN

2、 EN ISO 16773-2Electrochemical impedance spectroscopy (EIS) on coated and uncoated metallic specimens Part 2: Collection of data (ISO 167732:2016);English version EN ISO 167732:2016,English translation of DIN EN ISO 16773-2:2016-12Elektrochemische Impedanzspektroskopie (EIS) an beschichteten und unb

3、eschichteten metallischen Proben Teil 2: Datenerfassung (ISO 167732:2016);Englische Fassung EN ISO 167732:2016,Englische bersetzung von DIN EN ISO 16773-2:2016-12Spectroscopie dimpdance lectrochimique (SIE) sur des prouvettes mtalliques revtues etnon revtues Partie 2: Recueil des donnes (ISO 167732:

4、2016);Version anglaise EN ISO 167732:2016,Traduction anglaise de DIN EN ISO 16773-2:2016-12SupersedesDIN EN ISO 167732:200707www.beuth.deDocument comprises 32 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.11.16 DIN EN ISO 167

5、73-2:2016-12 2 A comma is used as the decimal marker. National foreword This document (EN ISO 16773-2:2016) has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes”, Subcommittee SC 9 “General test methods for paints and varnishes” (Secretariat: BSI, United Kingdom) in collaboration

6、 with Technical Committee CEN/TC 139 “Paints and varnishes” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was DIN-Normenausschuss Beschichtungsstoffe und Beschichtungen (DIN Standards Committee Coatings and Coating Materials), Working Committee NA 002-00-07 AA

7、Allgemeine Prfverfahren fr Beschichtungsstoffe und Beschichtungen, Working Group NA 002-00-07-17 AK Elektrochemische Methoden. DIN EN ISO 16773 consists of the following parts, under the general title Electrochemical impedance spectroscopy (EIS) on coated and uncoated metallic specimens: Part 1: Ter

8、ms and definitions Part 2: Collection of data Part 3: Processing and analysis of data from dummy cells Part 4: Examples of spectra of polymer-coated and uncoated specimens The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 2808 DIN EN ISO

9、2808 ISO 3270 DIN EN 23270 ISO 6270-1 DIN EN ISO 6270-1 ISO 8601 DIN ISO 8601 ISO 9227 DIN EN ISO 9227 ISO 16773-1 DIN EN ISO 16773-1 Amendments This standard differs from DIN EN ISO 16773-2:2007-07 as follows: a) the introductory element of the title, Paints and varnishes, has been omitted since th

10、e scope has been extended to include metals and metal alloys, and the main element of the title has been changed to: Electrochemical impedance spectroscopy (EIS) on coated and uncoated metallic specimens; b) a reference to ISO/TR 16208 has been added; c) an informative Annex A covering aspects of ex

11、act determination of measurable impedance has been included; d) Clause 10 “Test report” has been added. Previous editions DIN EN ISO 16773-2: 2007-07 DIN EN ISO 16773-2:2016-12 3 National Annex NA (informative) Bibliography DIN EN 23270, Paints, varnishes and their raw materials Temperatures and hum

12、idities for conditioning and testing DIN EN ISO 2808, Paints and varnishes Determination of film thickness DIN EN ISO 6270-1, Paints and varnishes Determination of resistance to humidity Part 1: Continuous condensation DIN EN ISO 9227, Corrosion tests in artificial atmospheres Salt spray tests DIN E

13、N ISO 16773-1, Electrochemical impedance spectroscopy (EIS) on coated and uncoated metallic specimens Part 1: Terms and definitions DIN ISO 8601, Data elements and interchange formats Information interchange Representation of dates and times DIN EN ISO 16773-2:2016-12 4 This page is intentionally bl

14、ank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 16773-2 April 2016 ICS 87.040 Supersedes EN ISO 16773-2:2007English Version Electrochemical impedance spectroscopy (EIS) on coated and uncoated metallic specimens - Part 2: Collection of data (ISO 16773-2:2016) Spectroscopie dimpdance lect

15、rochimique (SIE) sur des prouvettes mtalliques revtues et non revtues -Partie 2: Recueil des donnes (ISO 16773-2:2016) Elektrochemische Impedanzspektroskopie (EIS) an beschichteten und unbeschichteten metallischen Proben - Teil 2: Datenerfassung (ISO 16773-2:2016) This European Standard was approved

16、 by CEN on 11 March 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national stan

17、dards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and n

18、otified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary,

19、 Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC

20、Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 16773-2:2016 EEuropean foreword 31 Scope . 52 Normative references 53 Terms and definitions . 54 Principle 55 Electrochem

21、ical cell 65.1 General . 65.2 Electrodes 75.3 Exposed area . 75.4 Electrolyte . 76 Procedure. 86.1 Grounding 86.2 Shielding . 86.3 Cell cable ground contacts 86.4 Local conditions . 86.5 Measurement equipment characteristics 96.6 Confidence test 96.6.1 General 96.6.2 Use of interlaboratory test cell

22、s for confidence test 106.6.3 Error estimate and accuracy . 106.7 Specimens 106.7.1 Preconditioning of specimens . 106.7.2 Environmental control . 106.8 Evaluation of laboratory and field coating specimens . 106.9 Number of specimens and repeatability of results . 117 Instrumental parameters . 117.1

23、 General 117.2 Conditioning potential and conditioning time . 127.3 Frequency spectrum . 127.4 Data point spacing and points per decade . 127.5 D.C. potential control 127.6 Amplitude of perturbation . 137.7 Current range settings . 137.8 Data averaging settings . 138 Data presentation . 138.1 Genera

24、l 138.2 Bode plot . 138.3 Nyquist plot. 149 Exchange file format 1510 Test report 15Annex A (informative) Determination of maximum measurable impedance with the open-lead test .17Annex B (normative) Data exchange file format .19Annex C (informative) Considerations about the precise determination of

25、the exposed area .23Bibliography .28Contents Page2DIN EN ISO 16773-2:2016-12 EN ISO 16773-2:2016 (E) Foreword 4European foreword This document (EN ISO 16773-2:2016) has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes” in collaboration with Technical Committee CEN/TC 139 “Paints

26、and varnishes” the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2016, and conflicting national standards shall be withdrawn at the latest by October

27、 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 16773-2:2007. According to the CEN-CENELEC Inte

28、rnal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, I

29、reland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 16773-2:2016 has been approved by CEN as EN ISO 16773-2:2016 without any modification

30、. 3DIN EN ISO 16773-2:2016-12 EN ISO 16773-2:2016 (E) ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. E

31、ach member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the Internati

32、onal Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the differen

33、t types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall no

34、t be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is inf

35、ormation given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see

36、the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 35, Paints and varnishes, Subcommittee SC 9, General test methods for paints and varnishes.This second edition cancels and replaces the first edition (ISO 16773-2:2007), which has been techni

37、cally revised. The main changes are the following:a) the introductory element of the title, Paints and varnishes, has been omitted, because the scope is broadened to include metals and alloys and the main element of the title has been changed to: Electrochemical impedance spectroscopy (EIS) on coate

38、d and uncoated metallic specimens;b) a reference to ISO/TR 16208 has been added;c) considerations about the precise determination of the exposed area have been added as an informative annex;d) a test report has been added.ISO 16773 consists of the following parts, under the general title Electrochem

39、ical impedance spectroscopy (EIS) on coated and uncoated metallic specimens: Part 1: Terms and definitions Part 2: Collection of data Part 3: Processing and analysis of data from dummy cells Part 4: Examples of spectra of polymer-coated and uncoated specimens4DIN EN ISO 16773-2:2016-12 EN ISO 16773-

40、2:2016 (E) 1 ScopeThis part of ISO 16773 gives guidelines for optimizing the collection of EIS data with focus on high-impedance systems. High impedance in the context of intact coatings refers to systems with an impedance greater than 109cm2. This does not preclude measurements on systems with lowe

41、r impedance. For uncoated samples extra information can be found in ISO/TR 16208.This part of ISO 16773 deals with the following: instrumental set-up: requirements and pit-falls; data validation: checking the measurement range and the accuracy of the data; performing an EIS measurement: specimen con

42、siderations and instrumental parameters; the experimental results: different methods of presenting EIS data.These guidelines are intended to ensure the acquisition of EIS data that can be used to study the performance of the specimen. This part of ISO 16773 does not give guidelines for the interpret

43、ation of the data.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (in

44、cluding any amendments) applies.ISO 16773-1, Electrochemical impedance spectroscopy (EIS) on coated and uncoated metallic specimens Part 1: Terms and definitions3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 16773-1 apply.4 PrincipleA so-called “conf

45、idence” test is described in order to check the suitability of the entire set-up and recommendations are given as to how to perform EIS experiments. For convenience, only potentiostatically controlled EIS measurements are described, although it is also possible to make EIS measurements under galvano

46、static control.A potentiostat is connected either to a dummy cell or to an electrochemical cell (with working, counter- and reference electrodes). A single-sinusoidal- or multi-sinusoidal-waveform potential, either in conjunction with a d.c. offset or not, is applied by the potentiostat to the dummy

47、 cell or to the electrochemical cell, and the resulting a.c. current is measured. Both potential and a.c. current data are collected and analysed for amplitude and phase shift. This can be done in a variety of ways, depending 5DIN EN ISO 16773-2:2016-12 EN ISO 16773-2:2016 (E) on the type of equipme

48、nt used. All data are presented and compared graphically or computed for equivalent circuits. In the case of the dummy cell, the values of these equivalent components are compared to the actual cell components connected to the potentiostat and evaluated for coherence.5 Electrochemical cell5.1 Genera

49、lNOTE 1 Various types of measurement cell exist which are suitable for use with this part of ISO 16773. Most commonly used are two-electrode and three-electrode arrangements for measurements in an aqueous electrolyte.The cell shall be constructed of materials that will not corrode, otherwise deteriorate or contaminate the solution (e.g. PMMA, PTFE or glass). A material compatibility test should be carried out.The cell shall be