1、BSI Standards PublicationBS EN ISO 16773-1:2016Electrochemical impedancespectroscopy (EIS) on coatedand uncoated metallicspecimensPart 1: Terms and definitionsBS EN ISO 16773-1:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO16773-1:2016. It supersedes B
2、S EN ISO 16773-1:2007 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee STI/10, Test methods for paints.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the n
3、ecessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 85633 4ICS 87.040Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was
4、published under the authority of theStandards Policy and Strategy Committee on 30 April 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 16773-1 April 2016 ICS 87.040 Supersedes EN ISO 16773-1:2007English Version
5、Electrochemical impedance spectroscopy (EIS) on coated and uncoated metallic specimens - Part 1: Terms and definitions (ISO 16773-1:2016) Spectroscopie dimpdance lectrochimique (SIE) sur des prouvettes mtalliques revtues et non revtues -Partie 1: Termes et dfinitions (ISO 16773-1:2016) Elektrochemis
6、che Impedanzspektroskopie (EIS) an beschichteten und unbeschichteten metallischen Proben - Teil 1: Begriffe (ISO 16773-1:2016) This European Standard was approved by CEN on 11 March 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giv
7、ing this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three off
8、icial 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 notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies o
9、f Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
10、 Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide fo
11、r CEN national Members. Ref. No. EN ISO 16773-1:2016 EBS EN ISO 16773-1:2016EN ISO 16773-1:2016 (E) 3 European foreword This document (EN ISO 16773-1:2016) has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes” in collaboration with Technical Committee CEN/TC 139 “Paints and varni
12、shes” 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 2016. At
13、tention 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 16773-1:2007. According to the CEN-CENELEC Internal Regu
14、lations, 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, Ireland, I
15、taly, 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 16773-1:2016 has been approved by CEN as EN ISO 16773-1:2016 without any modification. BS EN I
16、SO 16773-1:2016ISO 16773-1:2016(E)Foreword ivIntroduction v1 Scope . 12 Terms and definitions . 1Bibliography 7 ISO 2016 All rights reserved iiiContents PageBS EN ISO 16773-1:2016ISO 16773-1:2016(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national
17、 standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. Internationa
18、l organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended fo
19、r its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different 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.or
20、g/directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not 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
21、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 information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions r
22、elated to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 35, Paints and varnishes, Subcommittee SC 9, Ge
23、neral test methods for paints and varnishes.This second edition cancels and replaces the first edition (ISO 16773-1:2007), which has been technically revised. The main changes are the following:a) the introductory element of the title, Paints and varnishes, has been omitted because the scopeis broad
24、ened to include metals and 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) the terms are listed in alphabetical order;d) the definition for working ele
25、ctrode has been implemented from ISO/TR 16208;e) the units and symbols have added where applicable.ISO 16773 consists of the following parts, under the general title Electrochemical impedance spectroscopy (EIS) on coated and uncoated metallic specimens: Part 1: Terms and definitions Part 2: Collecti
26、on of data Part 3: Processing and analysis of data from dummy cells Part 4: Examples of spectra of polymer-coated and uncoated specimensiv ISO 2016 All rights reservedBS EN ISO 16773-1:2016ISO 16773-1:2016(E)IntroductionISO 16773 describes the application of electrochemical impedance spectroscopy (E
27、IS). Although this International Standard was originally developed for coatings and major sections are specific for coatings, the general guidelines can be used also for uncoated samples. For uncoated samples extra information can be found in ISO/TR 16208.This part of ISO 16773 defines terms used in
28、 electrochemical impedance spectroscopy.ISO 16773-2 describes an experimental procedure for testing laboratory instrumentation for collecting and presenting EIS data collected under potentiostatic control with a focus on high-impedance organic coatings on metal surfaces. ISO 16773-2 specifies a dumm
29、y cell that models the properties of a high-impedance system. It gives a test procedure and set-up parameters for the collection of impedance data from the dummy cell and the coated metal specimens. It outlines a procedure for comparing the recorded spectra with the theoretical data for the dummy ce
30、ll in order to establish guidelines for acceptable instrumental accuracy and limitations. It does not provide any guidance on data interpretation.ISO 16773-3 specifies the procedure used for the evaluation of the experimental results obtained from dummy cells which simulate high-impedance coated sam
31、ples and it gives acceptance criteria for the values obtained.ISO 16773-4, which is informative in nature, includes some background on impedance spectra of coated metal specimens and some typical examples of spectra from actual coatings.ISO/TR 16208 describes basic principles of electrochemical impe
32、dance spectroscopy (EIS) specially focusing on the corrosion of metallic materials. It also deals with how to use electrochemical apparatus, set up and connect electrical instruments, present measured data, and analyse results. ISO 2016 All rights reserved vBS EN ISO 16773-1:2016BS EN ISO 16773-1:20
33、16Electrochemical impedance spectroscopy (EIS) on coated and uncoated metallic specimens Part 1: Terms and definitions1 ScopeThis part of ISO 16773 defines terms for electrochemical impedance spectroscopy (EIS) for use in the other parts of ISO 16773.2 Terms and definitions2.1peak-to-peak amplitude2
34、U0maximum value between maximum and minimum excitation of the applied a.c. perturbation signalNote 1 to entry: The peak-to-peak amplitude is usually expressed in millivolts.2.2rms amplitudeUrmsroot-mean-square (i.e. effective) value of the applied a.c. perturbation signalNote 1 to entry: This is the
35、 peak-to-peak value of the a.c. amplitude, divided by 22 .2.3Bode plotcurves of (a) phase angle (2.36) versus the logarithm of the applied frequency and (b) the logarithm of the magnitude of the impedance (2.28) |Z| versus the logarithm of the applied frequency2.4charge transfer resistanceRctresista
36、nce of the resistor representing the metal-electrolyte interface characteristics in the equivalent circuit (2.18)Note 1 to entry: The charge transfer resistance is usually expressed in ohms. The specific charge transfer resistance is usually expressed in ohms times square centimetres.2.5coatinglayer
37、 formed from a single or multiple application of a coating material to a substrateSOURCE: ISO 4618:2014, 2.50.12.6coatingprocess of applying a coatNote 1 to entry: The use of the term “coating” for “coating material” is deprecated.SOURCE: ISO 4618:2014, 2.50.2INTERNATIONAL STANDARD ISO 16773-1:2016(
38、E) ISO 2016 All rights reserved 1BS EN ISO 16773-1:2016ISO 16773-1:2016(E)2.7coating capacitanceCccapacitance of the capacitor representing the electrical capacitance of the coating (2.5) in the equivalent circuit (2.18)Note 1 to entry: The coating capacitance is usually expressed in nanofarads. The
39、 specific coating capacitance is usually expressed in nanofarads per square centimetre.Note 2 to entry: For coatings which do not have ideal capacitance, the constant phase element (CPE) is frequently used. The use of a constant phase element does not have a physical meaning.2.8coating resistanceRcr
40、esistance (2.40) of the resistor representing the electrical resistance of the coating (2.5) in the equivalent circuit (2.18)Note 1 to entry: The coating resistance is usually expressed in gigaohms. The specific coating resistance is usually expressed in gigaohms times square centimetres.2.9corrosio
41、n potentialUcorpotential of a corroding surface at which the rate of oxidation (corrosion) and the rate of reduction of the one or more oxidants are equalNote 1 to entry: This is also known as the mixed potential or the rest potential.Note 2 to entry: This potential is measured relative to a referen
42、ce electrode (2.39) under open-circuit conditions.Note 3 to entry: The corrosion potential is usually expressed in volts.2.10corrosion rateamount of metal lost in unit timeNote 1 to entry: The corrosion rate is usually expressed in millimetres per year.2.11counter electrodeCEinert electrode in the e
43、lectrochemical cell (2.15) through which the current passes from or to the working electrode (2.46)2.12double-layer capacitanceCdlcapacitance of the capacitor representing the metal-electrolyte interface characteristics in the equivalent circuit (2.18)Note 1 to entry: The double-layer capacitance is
44、 usually expressed in microfarads. The specific double-layer capacitance is usually expressed in microfarads per square centimetre.2.13dummy cellprinted-circuit board with mounted electrical components representing the equivalent circuit (2.18) and with connection points to the measuring instrument2
45、.14electrical zero-referencevoltage with respect to which all voltages within the electrochemical equipment are referenced2 ISO 2016 All rights reservedBS EN ISO 16773-1:2016ISO 16773-1:2016(E)2.15electrochemical cellsystem consisting of at least two electrodes in an electrolyte2.16electrochemical i
46、mpedance spectroscopyEISelectrochemical technique which allows the impedance spectrum of an electrochemical system to be recorded as a function of the frequency of the applied signal, and the spectrum thus obtained to be analysed by transfer function analysis2.17electromagnetic noiseelectrical noise
47、 in the current and/or voltage signal in a circuit whose origin is stray electromagnetic radiation from nearby electrical devices2.18equivalent circuitelectrical circuit modelling the impedance (2.23) of the specimen under testNote 1 to entry: For example, this could be a network, consisting of elem
48、ents such as a resistor, a capacitor and an inductor, which has the same impedance spectrum (i.e. the same response to a perturbation) as the electrochemical system.2.19error estimatepercentage deviation from zero of the recorded data, or the percentage deviation of the data from the absolute values
49、 of the elements of the dummy cell usedNote 1 to entry: The percentage deviation from zero of the recorded data is determined by subtracting the data from the theoretical equivalent-circuit data and dividing it by the latter. This method is only suitable for dummy cell measurements.Note 2 to entry: The percentage deviation from the absolute values of the elements of the dummy cell used is determined by calculating the values of the equivalent-circuit elements from the recorded spectra. It is expressed as the percentage deviation from the absolute
