1、BS EN 13523-1:2017Coil coated metals TestmethodsPart 1: Film thicknessBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN 13523-1:2017 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 13523-1:2017. It supersedes BS EN 13523-1:20
2、09 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee STI/21, Paint systems and surface preparation for metallic substrates.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport
3、 to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2017.Published by BSI Standards Limited 2017ISBN 978 0 580 91551 2 ICS 17.040.20; 25.220.60 Compliance with a British Standard cannot confer immunity from lega
4、l obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 28 February 2017.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS EN 13523-1:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13523-1 February 2
5、017 ICS 17.040.20; 25.220.60 Supersedes EN 13523-1:2009English Version Coil coated metals - Test methods - Part 1: Film thicknessTles prlaques - Mthodes dessai - Partie 1 : paisseur du revtement Bandbeschichtete Metalle - Prfverfahren - Teil 1: Schichtdicke This European Standard was approved by CEN
6、 on 18 December 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 standard
7、s 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 notif
8、ied 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, Ice
9、land, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENE
10、LEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13523-1:2017 EBS EN 13523-1:2017EN 13523-1:2017 (E) 2 Contents Page European foreword . 3 1 Scope 5 2 Normative reference
11、s 5 3 Terms and definitions . 5 4 Principle . 5 4.1 Method A: Measurement on a magnetic substrate magnetic induction . 5 4.2 Method B: Measurement on a non-magnetic substrate eddy current 6 4.3 Method C: Measurement on all substrates micrometer method 6 4.4 Method D: Measurement on all substrates op
12、tical method 6 5 Apparatus and materials 6 6 Sampling . 6 7 Test panels . 6 8 Procedure. 6 8.1 Calibration . 6 8.1.1 General 6 8.1.2 Calibration standards 7 8.2 Scale rating 7 8.3 Measurement 7 8.3.1 Ambient conditions 7 8.3.2 Number of measurements . 7 8.3.3 Method A: Magnetic induction 7 8.3.4 Met
13、hod B: Eddy current 8 8.3.5 Method C: Micrometer method 8 8.3.6 Method D: Optical method . 8 9 Expression of results 9 10 Accuracy . 9 11 Test report . 9 Bibliography . 10 BS EN 13523-1:2017EN 13523-1:2017 (E) 3 European foreword This document (EN 13523-1:2017) has been prepared by Technical Committ
14、ee CEN/TC 139 “Paints 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 August 2017, and conflicting national standards shall be withdrawn at
15、 the latest by August 2017. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 13523-1:2009. The main changes are: a) a refe
16、rence to EN 13523-0 concerning conditioning of the test panels was added; b) the principle clause for methods A and B have been stated more precisely; c) the number of measurements has been added to methods C and D; d) the text has been editorially revised and the normative references have been upda
17、ted. The EN 13523 series, Coil coated metals Test methods, consists of the following parts: Part 0: General introduction Part 1: Film thickness Part 2: Gloss Part 3: Colour difference Instrumental comparison Part 4: Pencil hardness Part 5: Resistance to rapid deformation (impact test) Part 6: Adhesi
18、on after indentation (cupping test) Part 7: Resistance to cracking on bending (T-bend test) Part 8: Resistance to salt spray (fog) Part 9: Resistance to water immersion Part 10: Resistance to fluorescent UV radiation and water condensation Part 11: Resistance to solvents (rubbing test) Part 12: Resi
19、stance to scratching Part 13: Resistance to accelerated ageing by the use of heat BS EN 13523-1:2017EN 13523-1:2017 (E) 4 Part 14: Chalking (Helmen method) Part 15: Metamerism Part 16: Resistance to abrasion Part 17: Adhesion of strippable films Part 18: Resistance to staining Part 19: Panel design
20、and method of atmospheric exposure testing Part 20: Foam adhesion Part 21: Evaluation of outdoor exposed panels Part 22: Colour difference Visual comparison Part 23: Resistance to humid atmospheres containing sulfur dioxide Part 24: Resistance to blocking and pressure marking Part 25: Resistance to
21、humidity Part 26: Resistance to condensation of water Part 27: Resistance to humid poultice (Cataplasm test) Part 29: Resistance to environmental soiling (Dirt pick-up and striping) According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following countries are
22、 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, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Por
23、tugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 13523-1:2017EN 13523-1:2017 (E) 5 1 Scope This part of the EN 13523 series specifies the procedures for determining the dry-film thickness of an organic coating on a metallic substrate (coil
24、coating). Four appropriate methods are given in this European Standard: a) magnetic induction; b) eddy current; c) micrometer; d) optical. The methods are applicable only to products with smooth and flat substrates but the coating itself may be textured. In that case, for methods a) and b) the avera
25、ge of a series of readings will represent an average of the thickness of the organic coating, while method c) will give the maximum thickness and method d) can provide the minimum, maximum and average thickness. Non-destructive continuous-web methods on measurement of dry-film thickness (see EN ISO
26、2808) are not dealt with. 2 Normative references The 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 doc
27、ument (including any amendments) applies. EN 13523-0:2014, Coil coated metals - Test methods - Part 0: General introduction EN 23270, Paints and varnishes and their raw materials - Temperatures and humidities for conditioning and testing (ISO 3270) EN ISO 3611, Geometrical product specifications (GP
28、S) - Dimensional measuring equipment: Micrometers for external measurements - Design and metrological characteristics (ISO 3611) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 13523-0 and the following apply. 3.1 film thickness distance between the s
29、urface of the film and the surface of the substrate SOURCE: EN ISO 2808:2007, 3.3 4 Principle 4.1 Method A: Measurement on a magnetic substrate magnetic induction The film thickness on a magnetic substrate is determined by means of an electromagnetic probe placed on the coating and developing an ele
30、ctromagnetic field. The variation of this field is a function of the distance between the probe and the substrate. This signal is measured and converted to the film thickness reading. BS EN 13523-1:2017EN 13523-1:2017 (E) 6 4.2 Method B: Measurement on a non-magnetic substrate eddy current The film
31、thickness on a non-magnetic conductive substrate is determined by means of an electromagnetic probe placed on the coating and generating eddy currents in the substrate. The magnitude of the eddy currents is a function of the distance between the probe and the substrate. This measuring signal is deri
32、ved from the impedance change in the probe and converted to the film thickness reading. 4.3 Method C: Measurement on all substrates micrometer method The film thickness is determined by measuring the coated sample and then removing the organic coating and re-measuring the sample minus the coating or
33、 by measuring a film of organic coating that has been removed from the sample. 4.4 Method D: Measurement on all substrates optical method The film thickness is determined by microscopical measurement of a section cut through the film. The defined cut may be made in the coating using a special blade
34、(symmetrical cut), a special paint borer (conical bore) or a milling tool (sloping cut). 5 Apparatus and materials 5.1 Instruments for measuring film thickness, using the principles described in Clause 4. 5.2 Solvent, suitable for removing organic coatings, for example methyl ethyl ketone (2-butanon
35、e). 5.3 Suitable abrasive and/or blunt knife or other means of removing softened organic coatings that do not damage the substrate. 5.4 Cutting tool, for Method D. 5.4.1 Blade, for making a symmetrical cut in the coating. 5.4.2 Paint borer, for making a conical bore in the coating. 5.4.3 Milling too
36、l, for making a sloping cut in the coating. 6 Sampling Shall be according to EN 13523-0. 7 Test panels Shall be according to EN 13523-0. 8 Procedure 8.1 Calibration 8.1.1 General For the measurement, the instructions of the manufacturer of the instrument shall be taken into account, in particular re
37、garding the calibration and/or setting up procedure. BS EN 13523-1:2017EN 13523-1:2017 (E) 7 Before use, calibrate each instrument in accordance with the manufacturers instructions using calibration standards. For instruments that cannot be calibrated, determine the deviation from the nominal value
38、by comparison with calibration standards and take this into consideration for all measurements. During use, check the calibration of the instrument as specified by the instruments manufacturer. 8.1.2 Calibration standards Calibration standards of known and uniform thickness are available either as f
39、oils or shims, or as coated standards with assigned values traceable to nationally recognized standards. Calibration foils are generally made of plastics materials. They are subject to indentation and shall, therefore, be replaced frequently. For methods A and B the surface and magnetic properties a
40、nd the thickness of the metallic substrate of the coated calibration standards shall be similar to those of the test specimen. For methods C and D the substrate of the test specimen and of the calibration standards shall be the same, provided the critical thickness (see Note) is not exceeded. NOTE F
41、or each instrument, there is a critical thickness of metallic substrate above which instruments will not be affected by an increase in thickness. 8.2 Scale rating For methods A and B, and if necessary, select the scale with a maximum above the estimated thickness of the coating and adjust the instru
42、ment to the thickness of a known non-metallic standard measured on the reference plate. The readings at several positions shall not vary by more than 5 %. The thickness of the standard shall be greater than half the measuring scale used. 8.3 Measurement 8.3.1 Ambient conditions Measure the film thic
43、kness at ambient temperature. For more accurate measurements, as required for instance in case of dispute, the temperature shall be (23 2) C and the relative humidity (50 5) %, in accordance with EN 23270. Conditioning is carried out in accordance with EN 13523-0:2014, Clause 6. 8.3.2 Number of meas
44、urements For methods A and B, take at least five measurements on smooth surfaces, and at least 10 measurements on textured coatings. For methods C and D, it is recommended that a minimum number of five measurements is taken. 8.3.3 Method A: Magnetic induction The samples shall be measured on a non-m
45、etallic and non-conductive table. Place the probe perpendicular to and in contact with the coated panel and read the film thickness on the standard scale. In the case of metallic coated steel (e.g. galvanized steel), the electromagnetic probe cannot measure simultaneously the metallic and the organi
46、c coating. Therefore, determine first the total thickness of the metallic coating and organic coating and, after having removed the organic coating, measure the thickness of the metallic coating on the same place. The difference gives the thickness of the organic coating. BS EN 13523-1:2017EN 13523-
47、1:2017 (E) 8 Remove the organic coating with a solvent (5.2). After an adequate period of contact with the solvent, remove the softened organic coating by abrasive action using an abrasive and/or blunt knife (5.3). This stripping process shall not remove any metallic coating. 8.3.4 Method B: Eddy cu
48、rrent The samples shall be measured on a non-metallic and non-conductive table. Place the probe perpendicular to and in contact with the coated panel and read the film thickness on the standard scale. 8.3.5 Method C: Micrometer method Operate all instruments so that the coated specimen side is facin
49、g the spindle. With the hand-held type, press the specimen against the fixed measuring tip. Carry out each measurement such that the spindle of the micrometer is pressed against the surface to be tested. Turn the spindle until the ratchet is activated. Remove the organic coating with a solvent (5.2). After an adequate period of contact with the solvent, remove the softened organic coating by abrasive action using an abrasive and/or blunt knife (5.3). This stripping process shall not
