1、May 2007DEUTSCHE NORM English price group 16No part of this standard 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; 87.040!,x:s“985
2、2380www.din.deDDIN EN ISO 2808Paints and varnishes Determination of film thickness (ISO 2808:2007)English version of DIN EN ISO 2808:2007-05Beschichtungsstoffe Bestimmung der Schichtdicke (ISO 2808:2007)Englische Fassung DIN EN ISO 2808:2007-05SupersedesDIN EN ISO 2808:1999-10www.beuth.deDocument co
3、mprises 47 pages 08.07DIN EN ISO 2808:2007-05 2 National foreword This standard falls within the responsibility of Technical Committee CEN/TC 139 “Paints and varnishes” (Secretariat: DIN, Germany). It is identical with International Standard ISO 2808:2007 which was prepared by Technical Committee IS
4、O/TC 35 “Paints and varnishes”, Subcommittee SC 9 “General test methods for paints and varnishes” (Secretariat: BSI, United Kingdom). The responsible German body involved in its preparation was the Normenausschuss Beschichtungsstoffe und Beschichtungen (Coatings and Coating Materials Standards Commi
5、ttee), Technical Committee NA 002-00-07 AA Allgemeine Prfverfahren fr Beschichtungsstoffe und Beschichtungen. If the film thickness of a coating system consisting of a basic coat and a varnish is measured, swelling of the basic coat may result in a greater film thickness than if the thickness of the
6、 burned-in layer and the thickness of the varnish are measured separately and then added together. If the film thickness of such a coating system is measured using different methods, it should be ensured that all specimens are prepared in the same way. The DIN Standards corresponding to the Internat
7、ional Standards referred to in clause 2 and in the bibliography of the EN are as follows: ISO 463 DIN EN ISO 463 ISO 1101 DIN EN ISO 1101 ISO 1463 DIN EN ISO 1463 ISO 2178 DIN EN ISO 2178 ISO 2360 DIN EN ISO 2360 ISO 2811-1 DIN EN ISO 2811-1 ISO 2811-2 DIN EN ISO 2811-2 ISO 2811-3 DIN EN ISO 2811-3
8、ISO 2811-4 DIN EN ISO 2811-4 ISO 3543 DIN EN ISO 3543 ISO 3611 DIN 863-1 ISO 4518 DIN EN ISO 4518 ISO 4618 DIN EN ISO 4618 ISO 8130-2 DIN ISO 8130-2 ISO 8130-3 DIN ISO 8130-3 ISO 8503-1 DIN EN ISO 8503-1 Amendments This standard differs from DIN EN ISO 2808:1999-10 as follows: a) The structure of th
9、e standard has been changed into four main clauses: 1) Determination of wet-film thickness; 2) Determination of dry-film thickness; 3) Determination of the thickness of uncured powder layers; 4) Measurement of film thickness on rough surfaces. b) Methods using photothermal, radiological and acoustic
10、 techniques have been specified. c) The split-beam method has been deleted as such instruments are no longer manufactured. DIN EN ISO 2808:2007-05 3 Previous editions DIN EN ISO 2808: 1999-10 National Annex NA (informative) Bibliography DIN 863-1, Micrometers Standard design external micrometers Con
11、cepts, requirements and testing DIN EN ISO 463, Geometrical Product Specifications (GPS) Dimensional measuring equipment Design and metrological characteristics of mechanical dial gauges DIN EN ISO 1101, Geometrical Product Specifications (GPS) Geometrical tolerancing Tolerances of form, orientation
12、, location and run-out DIN EN ISO 1463, Metallic and oxide coatings Measurement of coating thickness Microscopical method DIN EN ISO 2178, Non-magnetic coatings on magnetic substrates Measurement of coating thickness Magnetic method DIN EN ISO 2360, Non-conductive coatings on non-magnetic electrical
13、ly conductive basis materials Measurement of coating thickness Amplitude-sensitive eddy current method DIN EN ISO 2811-1, Paints and varnishes Determination of density Part 1: Pyknometer method DIN EN ISO 2811-2, Paints and varnishes Determination of density Part 2: Immersed body (plummet) method DI
14、N EN ISO 2811-3, Paints and varnishes Determination of density Part 3: Oscillation method DIN EN ISO 2811-4, Paints and varnishes Determination of density Part 4: Pressure cup method DIN EN ISO 3543, Metallic and non-metallic coatings Measurement of thickness Beta backscatter method DIN EN ISO 4518,
15、 Metallic coatings Measurement of coating thickness Profilometric method DIN EN ISO 4618, Paints and varnishes Terms and definitions DIN EN ISO 8503-1, Preparation of steel substrates before application of paints and related products Surface roughness characteristics of blast-cleaned steel substrate
16、s Part 1: Specifications and definitions for ISO surface profile comparators for the assessment of abrasive blast-cleaned surfaces DIN ISO 8130-2, Coating powders Part 2: Determination of density by gas comparison pyknometer (referee method) DIN ISO 8130-3, Coating powders Part 3: Determination of d
17、ensity by liquid displacement pyknometer DIN EN ISO 2808:2007-05 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 2808 February 2007 ICS 87.040 Supersedes EN ISO 2808:1999English Version Paints and varnishes - Determination of film thickness (ISO 2808:2007)
18、 Peintures et vernis - Dtermination de lpaisseur du feuil (ISO 2808:2007) Beschichtungsstoffe - Bestimmung der Schichtdicke (ISO 2808:2007) This European Standard was approved by CEN on 16 December 2006. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the co
19、nditions 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 application to the CEN Management Centre or to any CEN member. This European Standard exists in t
20、hree 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 Management Centre has the same status as the official versions. CEN members are the national standards bodies o
21、f Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN
22、 COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 2808:2007: EContents Page
23、Foreword4 Introduction .5 1 Scope 6 2 Normative references 6 3 Terms and definitions .6 4 Determination of wet-film thickness8 4.1 General8 4.2 Mechanical methods .8 4.2.1 Principle8 4.2.2 Field of application 8 4.2.3 General8 4.2.4 Method 1A Comb gauge .9 4.2.5 Method 1B Wheel gauge 10 4.2.6 Method
24、 1C Dial gauge 11 4.3 Gravimetric method 12 4.3.1 Principle. 12 4.3.2 Field of application . 12 4.3.3 General. 12 4.3.4 Method 2 By difference in mass . 12 4.4 Photothermal method. 13 4.4.1 Principle. 13 4.4.2 Field of application . 13 4.4.3 General. 14 4.4.4 Method 3 Determination using thermal pro
25、perties. 14 5 Determination of dry-film thickness . 14 5.1 General. 14 5.2 Mechanical methods 14 5.2.1 Principle. 14 5.2.2 Field of application . 15 5.2.3 General. 15 5.2.4 Method 4A By difference in thickness . 16 5.2.5 Method 4B Depth gauging. 18 5.2.6 Method 4C Surface profile scanning 20 5.3 Gra
26、vimetric method 21 5.3.1 Principle. 21 5.3.2 Field of application . 21 5.3.3 General. 21 5.3.4 Method 5 By difference in mass . 21 5.4 Optical methods 22 5.4.1 Principle. 22 5.4.2 Field of application . 23 5.4.3 General. 23 5.4.4 Method 6A Cross-sectioning 24 5.4.5 Method 6B Wedge cut 25 5.5 Magneti
27、c methods 25 5.5.1 General. 25 5.5.2 Principle. 25 5.5.3 Field of application . 25 5.5.4 General. 26 EN ISO 2808:2007 (E) 2 5.5.5 Method 7A Magnetic pull-off gauge26 5.5.6 Method 7B Magnetic-flux gauge27 5.5.7 Method 7C Magnetic-induction gauge27 5.5.8 Method 7D Eddy-current gauge 28 5.6 Radiologica
28、l method .29 5.6.1 Principle .29 5.6.2 Field of application29 5.6.3 General .29 5.6.4 Method 8 Beta backscatter method 30 5.7 Photothermal method .30 5.7.1 Principle .30 5.7.2 Field of application31 5.7.3 General .31 5.7.4 Method 9 Determination using thermal properties .32 5.8 Acoustic method .32 5
29、.8.1 Principle .32 5.8.2 Field of application32 5.8.3 General .32 5.8.4 Method 10 Ultrasonic thickness gauge 33 6 Determination of thickness of uncured powder layers .33 6.1 General .33 6.2 Gravimetric method.34 6.2.1 Principle .34 6.2.2 Field of application34 6.2.3 General .34 6.2.4 Method 11 By di
30、fference in mass34 6.3 Magnetic methods.34 6.3.1 Principle .34 6.3.2 Field of application34 6.3.3 General .35 6.3.4 Method 12A Magnetic-induction gauge35 6.3.5 Method 12B Eddy-current gauge 36 6.4 Photothermal method .36 6.4.1 Principle .36 6.4.2 Field of application36 6.4.3 General .36 6.4.4 Method
31、 13 Determination using thermal properties .36 7 Measurement of film thickness on rough surfaces .37 7.1 General .37 7.2 Apparatus and materials.38 7.3 Procedure.38 7.3.1 Verification .38 7.3.2 Measurement .38 7.3.3 Number of readings.38 8 Test report38 Annex A (informative) Overview of methods .40
32、Bibliography43 3EN ISO 2808:2007 (E) Foreword 4 EN ISO 2808:2007 (E)This document (EN ISO 2808:2007) has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes” in collaboration with Technical Committee CEN/TC 139 “Paints and varnishes”, the secretariat of which is held by DIN. This Eu
33、ropean Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by August 2007, and conflicting national standards shall be withdrawn at the latest by August 2007. This document supersedes EN ISO 2808:1999. According to th
34、e CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuan
35、ia, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Endorsement notice The text of ISO 2808:2007 has been approved by CEN as EN ISO 2808:2007 without any modifications. Introduction Measurement of film thickness de
36、pends on the following steps: a) calibration of the measurement instrument, typically performed by the manufacturer or by any qualified laboratory; b) verification of the instrument (an accuracy check performed by the user at regular intervals, typically before each series of measurements); c) subse
37、quent adjustment, if necessary, of the instrument so that the thickness readings it gives match those of a specimen of known thickness. For a dry-film thickness gauge this would mean zeroing it on the uncoated surface, using devices of known thickness such as shims, or using a coated specimen of kno
38、wn film thickness; d) measurement. 5 EN ISO 2808:2007 (E)1 Scope This International Standard describes a number of methods that are applicable to the measurement of the thickness of coatings applied to a substrate. Methods for determining wet-film thickness, dry-film thickness and the film thickness
39、 of uncured powder layers are described. Reference is made to individual standards where these exist. Otherwise the method is described in detail. An overview on the methods is given in Annex A, in which the field of application, existing standards and the precision are specified for the individual
40、methods. This International Standard also defines terms concerning the determination of film thickness. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the
41、latest edition of the referenced document (including any amendments) applies. ISO 463, Geometrical Product Specifications (GPS) Dimensional measuring equipment Design and metrological characteristics of mechanical dial gauges ISO 3611, Micrometer callipers for external measurement ISO 4618:2006, Pai
42、nts and varnishes Terms and definitions ISO 8503-1, Preparation of steel substrates before application of paints and related products Surface roughness characteristics of blast-cleaned steel substrates Part 1: Specifications and definitions for ISO surface profile comparators for the assessment of a
43、brasive blast-cleaned surfaces 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 4618 and the following apply. 3.1 substrate surface to which a coating material is applied or is to be applied ISO 4618:2006 3.2 coating continuous layer formed from a sin
44、gle or multiple application of a coating material to a substrate ISO 4618:2006 6 EN ISO 2808:2007 (E)3.3 film thickness distance between the surface of the film and the surface of the substrate 3.4 wet-film thickness thickness of a freshly applied wet coating material, measured immediately after app
45、lication 3.5 dry-film thickness thickness of a coating remaining on the surface when the coating has hardened 3.6 thickness of uncured powder layer thickness of a freshly applied coating material in powder form, measured immediately after application and before stoving 3.7 relevant surface area1)par
46、t of an article covered or to be covered by the coating and for which the coating is essential for serviceability and/or appearance 3.8 test area1)representative part of the relevant surface area within which an agreed number of single measurements is made as a spot-check 3.9 measurement area1)area
47、over which a single measurement is made 3.10 minimum local film thickness1)lowest value of the local film thickness found on the relevant surface area of a particular test specimen 3.11 maximum local film thickness1)highest value of the local film thickness found on the relevant surface area of a pa
48、rticular test specimen 3.12 mean film thickness1)arithmetic mean of all the individual dry-film thicknesses in the test area or the result of a gravimetric determination of the thickness 3.13 calibration controlled and documented process of measuring traceable calibration standards and verifying tha
49、t the results are within the stated accuracy of the measurement instrument NOTE Initial calibration is typically performed by the instrument manufacturer or by a qualified laboratory in a controlled environment using a documented process. This initial calibration will normally be verified by the user at regular intervals. The standards used in the calibration are such that the combined uncertainties of the resultant measurement are less than the stated accu
