1、November 2016 English price group 18No 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 17.040.20; 25.220.40; 25.220.50
2、!%YL“2585441www.din.deDIN EN ISO 2178Nonmagnetic coatings on magnetic substrates Measurement of coating thickness Magnetic method (ISO 2178:2016);English version EN ISO 2178:2016,English translation of DIN EN ISO 2178:2016-11Nichtmagnetische berzge auf magnetischen Grundmetallen Messen der Schichtdi
3、cke Magnetverfahren (ISO 2178:2016);Englische Fassung EN ISO 2178:2016,Englische bersetzung von DIN EN ISO 2178:2016-11Revtements mtalliques non magntiques sur mtal de base magntique Mesurage de lpaisseur du revtement Mthode magntique (ISO 2178:2016);Version anglaise EN ISO 2178:2016,Traduction angl
4、aise de DIN EN ISO 2178:2016-11SupersedesDIN EN ISO 2178:199504www.beuth.deDocument comprises 46 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.10.16 DIN EN ISO 2178:2016-11 2 A comma is used as the decimal marker. National fo
5、reword This document (EN ISO 2178:2016) has been prepared by Technical Committee ISO/TC 107 “Metallic and other inorganic coatings” in collaboration with Technical Committee CEN/TC 262 “Metallic and other inorganic coatings” (Secretariat: BSI, United Kingdom). The responsible German body involved in
6、 its preparation was DIN-Normenausschuss Materialprfung (DIN Standards Committee Materials Testing), Working Committee NA 062-01-61 AA Mess- und Prfverfahren fr metallische und andere anorganische berzge. The DIN Standards corresponding to the International Standards referred to in this document are
7、 as follows: ISO 2064 DIN EN ISO 2064 ISO 2360 DIN EN ISO 2360 ISO 2361 DIN EN ISO 2361 ISO 2808 DIN EN ISO 2808 ISO 4618 DIN EN ISO 4618 ISO 5725-1:1994 DIN ISO 5725-1:1997-11 ISO 5725-2 DIN ISO 5725-2 ISO 21968 DIN EN ISO 21968 ISO/TR 22971 DIN ISO/TR 22971 Amendments This standard differs from DI
8、N EN ISO 2178:1995-04 as follows: a) normative references have been updated; b) Clause 4 has been revised to include an explanation of the magnetic pull-off method and the magnetic inductive principle; c) Clause 5 has been renamed; d) specifications regarding electrical properties of the coating mat
9、erials, temperature effects, and cleanliness have been added in Clause 5; e) Clause 6 has been revised and specifications for the adjustment of the instrument have been added; f) Clause 9 “Precision” has been added; g) new Annexes A to G have been included; h) the standard has been editorially revis
10、ed. Previous editions DIN 51168: 1977-02 DIN 50981: 1979-05 DIN EN ISO 2178: 1995-04 DIN EN ISO 2178:2016-11 3 National Annex NA (informative) Bibliography DIN EN ISO 2064, Metallic and other non-organic coatings Definitions and conventions concerning the measurement of thickness DIN EN ISO 2360, No
11、n-conductive coatings on non-magnetic electrically conductive basis materials Measurement of coating thickness Amplitude-sensitive eddy current method DIN EN ISO 2361, Electrodeposited nickel coatings on magnetic and non-magnetic substrates Measurement of coating thickness Magnetic method DIN EN ISO
12、 2808, Paints and varnishes Determination of film thickness DIN EN ISO 4618, Paints and varnishes Terms and definitions DIN EN ISO 21968, Non-magnetic metallic coatings on metallic and non-metallic basis materials Measurement of coating thickness Phase-sensitive eddy-current method DIN ISO 5725-1:19
13、97-11, Accuracy (trueness and precision) of measurement methods and results Part 1: General principles and definitions DIN ISO 5725-2, Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard me
14、asurement method DIN ISO/TR 22971, Accuracy (trueness and precision) of measurement methods and results Practical guidance for the use of ISO 5725-2:1994 in designing, implementing and statistically analysing interlaboratory repeatability and reproducibility results DIN EN ISO 2178:2016-11 4 This pa
15、ge is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 2178 April 2016 ICS 25.220.40; 25.220.50 Supersedes EN ISO 2178:1995English Version Non-magnetic coatings on magnetic substrates - Measurement of coating thickness - Magnetic method(ISO 2178:2016) Revtements mtallique
16、s non magntiques sur mtal de base magntique - Mesurage de lpaisseur du revtement - Mthode magntique (ISO 2178:2016) Nichtmagnetische berzge auf magnetischen Grundmetallen - Messen der Schichtdicke - Magnetverfahren (ISO 2178:2016) This European Standard was approved by CEN on 27 February 2016. CEN m
17、embers 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 standards may be obtained on applic
18、ation 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 notified to the CEN-CENELEC Mana
19、gement 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, Iceland, Ireland, Italy, Latvi
20、a, 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 Management Centre: Avenue Marni
21、x 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 2178:2016 EEuropean foreword .41 Scope . 62 Normative references 63 Terms and definitions . 64 Principle of measurement 74.1 Basic principle of all magn
22、etic measurement methods . 74.2 Magnetic pull-off method . 74.3 Magnetic inductive principle 84.4 Magnetic flux gauge . 105 Factors affecting measurement accuracy 115.1 Basic influence of the coating thickness 115.2 Magnetic properties of the base metal 115.3 Electrical properties of the coating mat
23、erials . 125.4 Geometry: base metal thickness . 125.5 Edge effect 125.6 Geometry: surface curvature . 125.7 Surface roughness . 135.8 Cleanliness: lift-off effect . 135.9 Probe pressure . 135.10 Probe tilt 135.11 Temperature effects . 145.12 External electromagnetic fields . 146 Calibration and adju
24、stment of the instrument 146.1 General 146.2 Thickness reference standards 146.3 Methods of adjustment . 157 Measurement procedure and evaluation .157.1 General 157.2 Number of measurements and evaluation . 168 Uncertainty of the results .168.1 General remarks . 168.2 Uncertainty of the calibration
25、of the instrument .178.3 Stochastic errors . 188.4 Uncertainties caused by factors summarized in Clause 5 188.5 Combined uncertainty, expanded uncertainty and final result 199 Precision 199.1 General 199.2 Repeatability (r) 199.3 Reproducibility limit (R) 2010 Test report 20Annex A (informative) Bas
26、ic principle of all measurement methods .22Annex B (informative) Basic performance requirements for coating thickness gauges which are based on the magnetic method described in this International Standard .24Annex C (informative) Examples of experimental estimation of factors affecting the measureme
27、nt .26Contents PageForeword 5DIN EN ISO 2178:2016-11 EN ISO 2178:2016 (E) 2 Annex F (informative) Table of the student factor 36Annex G (informative) Details on precision .37Bibliography .42Annex D (informative) Example of uncertainty estimation (see Clause 8) .31Annex E (informative) Basics of the
28、determination of the uncertainty of a measurement of the used measurement method corresponding to ISO/IEC Guide 98-3 .34DIN EN ISO 2178:2016-11 EN ISO 2178:2016 (E) 3 European foreword This document (EN ISO 2178:2016) has been prepared by Technical Committee ISO/TC 107 “Metallic and other inorganic
29、coatings“ in collaboration with Technical Committee CEN/TC 262 “Metallic and other inorganic coatings” the secretariat of which is held by BSI. 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 Octo
30、ber 2016, and conflicting national standards shall be withdrawn at the latest by October 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
31、 rights. This document supersedes EN ISO 2178:1995. According to the CEN-CENELEC Internal 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
32、, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, 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
33、2178:2016 has been approved by CEN as EN ISO 2178:2016 without any modification DIN EN ISO 2178:2016-11 EN ISO 2178:2016 (E) 4 ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing Internatio
34、nal 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. International organizations, governmental and non-governmental, in liaison with ISO
35、, 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 for its further maintenance are described in the ISO/IEC Directives, Part
36、 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.org/directives).Attention is drawn to the possibility that some of the el
37、ements 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 in the Introduction and/or on the ISO list of patent declarations recei
38、ved (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 related to conformity assessment, as well as information about ISOs adhe
39、rence 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 107, Metallic and other inorganic coatings.This third edition cancels and replaces the second edition (ISO 2178:1982),
40、 which has been technically revised.DIN EN ISO 2178:2016-11 EN ISO 2178:2016 (E) 5 1 ScopeThis International Standard specifies a method for non-destructive measurements of the thickness of non-magnetizable coatings on magnetizable base metals.The measurements are tactile and non-destructive on typi
41、cal coatings. The probe or an instrument with integrated probe is placed directly on the coating to be measured. The coating thickness is displayed on the instrument.In this International Standard the term “coating” is used for material such as, for example, paints and varnishes, electroplated coati
42、ngs, enamel coatings, plastic coatings, powder coatings, claddings.NOTE This method can also be applied to the measurement of magnetizable coatings on non-magnetizable base metals or other materials (see ISO 2361).2 Normative referencesThe following documents, in whole or in part, are normatively re
43、ferenced in this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 2064, Metallic and other inorganic coatings Definitions and conventions concerning the measurement of thicknes
44、sISO 4618, Paints and varnishes Terms and definitionsISO 5725-1:1994, Accuracy (trueness and precision) of measurement methods and results Part 1: General principles and definitionsISO/IEC Guide 98-3, Uncertainty of measurement Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)
45、3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 2064 and ISO 4618 and the following apply.3.1adjustment of a measuring systemset of operations carried out on a measuring system so that it provides prescribed indications corresponding to given values o
46、f a quantity to be measuredNote 1 to entry: Adjustment of a measuring system can include zero adjustment, offset adjustment, and span adjustment (sometimes called gain adjustment).Note 2 to entry: Adjustment of a measuring system should not be confused with calibration, which is a prerequisite for a
47、djustment.Note 3 to entry: After an adjustment of a measuring system, the measuring system shall usually be recalibrated.Note 4 to entry: Colloquially the term “calibration” is frequently but falsely used instead of the term “adjustment”. In the same way, the terms “verification” and “checking” are
48、often used instead of the correct term “calibration”.DIN EN ISO 2178:2016-11 EN ISO 2178:2016 (E) 6 SOURCE: ISO/IEC Guide 99:2007, 3.11 (also known as “VIM”), modified Note 4 to entry has been added.3.2calibrationoperation that, under specified conditions, in a first step, establishes a relation between the quantity values with mea
