EN ISO 19399-2017 Paints and varnishes - Wedge-cut method for determination of film thickness (scribe and drill method).pdf

1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Paints and varnishes - Wedge-cut method for determination of film thickness (scribe and drill method) (ISO 19399:2016)BS EN ISO 19399:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 19399 December 2017 ICS

2、87.040 English Version Paints and varnishes - Wedge-cut method for determination of film thickness (scribe and drill method) (ISO 19399:2016) Peintures et vernis - Dtermination de lpaisseur par la mthode dentaille en coin (Mthode de rayer et de forage) (ISO 19399:2016) Beschichtungsstoffe - Bestimmu

3、ng der Trockenschichtdicke mit dem Keilschnittverfahren (Ritz- und Bohrmethode) (ISO 19399:2016) This European Standard was approved by CEN on 23 November 2017. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard

4、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 official versions (English, Fr

5、ench, 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 of Austria, Belgium, Bulgari

6、a, 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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerlan

7、d, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC 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 Mem

8、bers. Ref. No. EN ISO 19399:2017 ENational forewordThis British Standard is the UK implementation of EN ISO 19399:2017. It is identical to ISO 19399:2016. It supersedes BS ISO 19399:2016, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee STI/10, Test met

9、hods for paints.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2018 Publish

10、ed by BSI Standards Limited 2018ISBN 978 0 580 98282 8ICS 87.040Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 28 February 2018.Amendments/corrigenda issued si

11、nce publicationDate Text affected28 February 2018 This corrigendum renumbers BS ISO 19399:2016 as BS EN ISO 19399:2017BRITISH STANDARDBS EN ISO 19399:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 19399 December 2017 ICS 87.040 English Version Paints and varnishes - Wedge-cut method fo

12、r determination of film thickness (scribe and drill method) (ISO 19399:2016) Peintures et vernis - Dtermination de lpaisseur par la mthode dentaille en coin (Mthode de rayer et de forage) (ISO 19399:2016) Beschichtungsstoffe - Bestimmung der Trockenschichtdicke mit dem Keilschnittverfahren (Ritz- un

13、d Bohrmethode) (ISO 19399:2016) This European Standard was approved by CEN on 23 November 2017. 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-d

14、ate 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 official versions (English, French, German). A version in any other language made by translatio

15、n 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 of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Fo

16、rmer Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZAT

17、ION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC 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 ISO 19399:2017 EBS EN ISO 19399:2017EN ISO 1939

18、9:2017 (E) 3 European foreword The text of ISO 19399:2016 has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes“ of the International Organization for Standardization (ISO) and has been taken over as EN ISO 19399:2017 by Technical Committee CEN/TC 139 “Paints and varnishes” the se

19、cretariat 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 June 2018, and conflicting national standards shall be withdrawn at the latest by June 2018. Attention is drawn t

20、o 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. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bo

21、und 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, Portug

22、al, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 19399:2016 has been approved by CEN as EN ISO 19399:2017 without any modification. BS EN ISO 19399:2017ISO 19399:2016(E)Foreword iv1 Scope . 12 Normative references

23、13 Terms and definitions . 14 Principle 25 Wedge-cut principle 26 Apparatus . 56.1 Method A 56.2 Method B 76.3 Measuring microscope . 87 Test specimens 88 Procedure. 88.1 Sample preparation 88.2 Number of determinations . 88.3 Method A (wedge-cut scribe) . 88.4 Method B (wedge-cut bore) . 99 Precisi

24、on . 910 Test report . 9Annex A (informative) Error sources and measuring problems 11Annex B (informative) Evaluation with tilted specimen .16Annex C (informative) Evaluation with curved specimen .21Bibliography .27 ISO 2016 All rights reserved iiiContents PageBS EN ISO 19399:2017ISO 19399:2016(E)Fo

25、rewordISO (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. Each member body interested in a subject for which a tech

26、nical 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 International Electrotechnical Commission (IEC) on all matters of

27、 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 different types of ISO documents should be noted. This document

28、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 not be held responsible for identifying any or all such p

29、atent 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 information given for the convenience of users and does n

30、ot 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 the following URL: Foreword - Supplementary informatio

31、nThe committee responsible for this document is ISO/TC 35, Paints and varnishes, Subcommittee SC 9, General test methods for paints and varnishes.iv ISO 2016 All rights reservedBS EN ISO 19399:2017INTERNATIONAL STANDARD ISO 19399:2016(E)Paints and varnishes Wedge-cut method for determination of film

32、 thickness (scribe and drill method)1 ScopeThis International Standard specifies a destructive method for determination of the dry film thickness, in which damage to the coat caused in a definite manner is evaluated microscopically. The method is suitable for almost all coat-substrate combinations a

33、nd also allows determination of the single film thicknesses of coating systems.The method cannot be applied or can only be applied with restrictions in case of too soft and/or elastic coatings (no recognizable scribe or drill hole can be observed), hard (cannot be scribed/drilled) or too soft and/or

34、 elastic substrates, too low visual contrast between the coating and substrate, and film thicknesses that are larger than the depth of field of the measuring microscope.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensab

35、le for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 4618, Paints and varnishes Terms and definitions3 Terms and definitionsFor the purposes of this document, the ter

36、ms and definitions given in ISO 4618 and the following apply.3.1substratesurface to which a coating material is applied or is to be appliedSOURCE: ISO 4618:2014, 2.2443.2coatinglayer formed from a single or multiple application of a coating material to a substrateSOURCE: ISO 4618:2014, 2.50.13.3coat

37、ing systemcombination of all coats of coating materials which are to be applied or which have been applied to a substrateNote 1 to entry: The actual coating system can be characterized by the number of coats involved.Note 2 to entry: See also coating (3.2).SOURCE: ISO 4618:2014, 2.54 ISO 2016 All ri

38、ghts reserved 1BS EN ISO 19399:2017ISO 19399:2016(E)3.4single coatpart of a coating system3.5total film thicknessdistance between the surface of the coating and surface of the substrate3.6single film thicknessdistance between the surface of a single coat and the surface of the coat (substrate) under

39、neath3.7dry-film thicknessthickness of a coating remaining on the surface when the coating has hardenedSOURCE: ISO 2808:2007, 3.53.8wedge cutdamage to the coating system caused mechanically under the specified angle to the surface and extending into the substrateNote 1 to entry: The wedge cut can be

40、 implemented as a linear scribe or as a conical bore hole.3.9wedge-cut imagemicroscopic image of a wedge cut3.10adhesive failuredetachment of a coating from the substrate caused by external forcesNote 1 to entry: The substrate can be another coating beneath or the basic material.3.11cohesion failure

41、loss of cohesion within a coating caused by external forces4 PrincipleA wedge cut with a known flank angle is made in the coating using a scribing or drilling tool. The film thickness is calculated from the width of the flank projection of the wedge cut obtained with the measuring microscope.5 Wedge

42、cut principleThe wedge cut for determination of the film thickness according to this International Standard can be made using a scribing tool (method A) or a drilling tool (method B).Figure 1 shows a wedge cut according to method A in the cross section. The basis length, l, is the projection of the

43、 wedge-cut flank within the coating and is measured with a microscope between the upper and lower contrast mark in micrometres.2 ISO 2016 All rights reservedBS EN ISO 19399:2017ISO 19399:2016(E)Key1 coating2 substrate3 lower contrast mark (intersection from the substrate to the coating)4 upper contr

44、ast markl wedge-cut basistddry-film thickness wedge-cut angleFigure 1 Wedge cut according to method A (single coat/cross section)The film thickness is determined according to Formula (1):tld=tan (1)wheretdis the dry-film thickness, in micrometres;l is the wedge-cut base (microscope reading), in micr

45、ometres;tan is the wedge-cut factor of the wedge-cut tool used.NOTE 1 Instruments are available where the microscope reading is indicated in “number of scale divisions” and the wedge-cut factor in “micrometres per scale division”.NOTE 2 Instruments are available where the microscope reading (in micr

46、ometres) for calculating the film thickness is divided by a divisor assigned to the wedge-cut tool.The film thickness measuring range is as follows: determined by the wedge-cut angle, the dimensions of the wedge-cut tool and the scale measuring range of the microscope; limited by the depth of field

47、of the measuring microscope (see A.9).The resolution of the dry-film thickness measurement is determined by the wedge-cut angle and the scale division of the measuring microscope.EXAMPLE For the usual wedge-cut angles = 5,7 and = 14,0, the following is indicated in Table 1: the wedge-cut factor tan

48、 the dry-film thickness measuring range (= scale measuring range tan ); the absolute dry-film thickness resolution a(= scale division tan ); ISO 2016 All rights reserved 3BS EN ISO 19399:2017ISO 19399:2016(E) the relative dry-film thickness resolution r(= (a/td) 100; td= dry-film thickness).In the

49、above, it is assumed that the measuring microscope has a scale measuring range of 2 mm, as well as a scale division of 0,02 mm and that the wedge-cut tool is sufficiently dimensioned.Table 1 Numerical data on the wedge-cut methodWedge-cut angle 5,7 14,0Wedge-cut factor tan 0,10 0,25Film thickness measuring range m up to 200 up to 500Absolute film thickness resolution am 2 5Relative film thickness resolution r% 200/td500/tdFigure 2 shows a wedge cut according to method B in the cros