EN ISO 28199-3-2009 en Paints and varnishes - Evaluation of properties of coating systems related to the application process - Part 3 Visual assessment of sagging formation of bubb.pdf

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1、BS EN ISO28199-3:2009ICS 87.040NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDPaints and varnishes Evaluation ofproperties of coatingsystems related to theapplication processPart 3: Visual assessment of sagging,formation of bubbles, pinholing andhiding power (I

2、SO 28199-3:2009)This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2009. BSI 2009ISBN 978 0 580 59286 7Amendments/corrigenda issued since publicationDate CommentsBS EN ISO 28199-3:2009National forewordThis British Standard is the UK

3、implementation of EN ISO28199-3:2009. 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 be obtained onrequest to its secretary.This publication does not purport to include all the nece

4、ssary provisionsof a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunityfrom legal obligations.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 28199-3 September 2009 ICS 87.040 English Version Paints and varnishes - Evaluati

5、on of properties of coating systems related to the application process - Part 3: Visual assessment of sagging, formation of bubbles, pinholing and hiding power (ISO 28199-3:2009) Peintures et vernis - valuation des proprits des systmes de revtement lies au mode dapplication - Partie 3: valuation vis

6、uelle du festonnage, de la formation de bulles, des piqres et du pouvoir masquant (ISO 28199-3:2009) Beschichtungsstoffe - Beurteilung von applikationsbedingter Eigenschaften von Beschichtungssystemen - Teil 3: Visuelle Beurteilung von Ablaufneigung, Kocherbildung, Nadelstichbildung und Deckvermgen

7、(ISO 28199-3:2009) This European Standard was approved by CEN on 21 May 2009. 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 bibl

8、iographical 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 three official versions (English, French, German). A version in any other language made by translation under the responsibility

9、 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 of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ir

10、eland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix

11、 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 28199-3:2009: EBS EN ISO 28199-3:2009EN ISO 28199-3:2009 (E) 3 Foreword This document (EN ISO 28199-3:2009) has been prepared by Technical Committee ISO/

12、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 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 Ma

13、rch 2010, and conflicting national standards shall be withdrawn at the latest by March 2010. 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 r

14、ights. 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,

15、Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 28199-3:2009 has been approved by CEN as a EN ISO 28199-3:2009 without any modification. BS EN ISO 28

16、199-3:2009ISO 28199-3:2009(E) ISO 2009 All rights reserved iiiContents Page Foreword iv Introduction.v 1 Scope1 2 Normative references1 3 Terms and definitions .1 4 Tendency toward sagging 1 4.1 General .1 4.2 Evaluation.3 5 Bubbles.3 5.1 General .3 5.2 Evaluation.3 6 Pinholing 3 6.1 General .3 6.2

17、Evaluation.3 7 Process hiding power .3 7.1 General .3 7.2 Evaluation.4 8 Test report4 Annex A (informative) Examples of bubbles, pinholes and craters 5 BS EN ISO 28199-3:2009ISO 28199-3:2009(E) iv ISO 2009 All rights reservedForeword ISO (the International Organization for Standardization) is a worl

18、dwide 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 technical committee has been established has the right to be represented on

19、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 electrotechnical standardization. International Standards are drafted i

20、n accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard

21、 requires approval by at least 75 % of the member bodies casting a vote. 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. ISO 28199-3 was prepared by

22、Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee SC 9, General test methods for paints and varnishes. ISO 28199 consists of the following parts, under the general title Paints and varnishes Evaluation of properties of coating systems related to the application process: Part 1: Relev

23、ant vocabulary and preparation of test panels Part 2: Colour stability, process hiding power, re-dissolving, overspray absorption, wetting, surface texture and mottling Part 3: Visual assessment of sagging, formation of bubbles, pinholing and hiding power BS EN ISO 28199-3:2009ISO 28199-3:2009(E) IS

24、O 2009 All rights reserved vIntroduction In many areas (e.g. car manufacture, industrial coatings, coatings for plastics) the coating materials used are adapted to the specific application equipment and technologies of the particular user. A coating material is, therefore, to be understood as a semi

25、-manufactured product that only receives its final form in combination with the specific application conditions. The adaptation to the application conditions is therefore decisive for the quality of the coated product. The test methods specified in ISO 28199 are based on studies by a Working Group o

26、f the European Council for Automotive R surface texture; colour in accordance with ISO 7724 (all parts). In combination with visual assessment, the following properties are determined: colour stability, process hiding power, re-dissolving, overspray absorption, wetting, surface texture and mottling

27、(ISO 28199-2); tendency toward sagging, formation of bubbles, pinholing and hiding power (this part of ISO 28199). BS EN ISO 28199-3:2009BS EN ISO 28199-3:2009INTERNATIONAL STANDARD ISO 28199-3:2009(E) ISO 2009 All rights reserved 1Paints and varnishes Evaluation of properties of coating systems rel

28、ated to the application process Part 3: Visual assessment of sagging, formation of bubbles, pinholing and hiding power IMPORTANT The electronic file of this document contains colours which are considered to be useful for the correct understanding of the document. Users should therefore consider prin

29、ting this document using a colour printer. 1 Scope This part of ISO 28199 specifies visual methods for the assessment of tendency toward sagging, formation of bubbles, pinholing and hiding power of coating materials applied to a test panel under defined conditions. 2 Normative references The followi

30、ng referenced documents are indispensable for the application of 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 6504-3, Paints and varnishes Determination of hiding pow

31、er Part 3: Determination of contrast ratio of light-coloured paints at a fixed spreading rate ISO 28199-1:2009, Paints and varnishes Evaluation of properties of coating systems related to the application process Part 1: Relevant vocabulary and preparation of test panels 3 Terms and definitions For t

32、he purposes of this document, the terms and definitions given in ISO 28199-1 apply. 4 Tendency toward sagging 4.1 General The tendency toward sagging is determined by visual assessment of the sag. This assessment is made after drying/curing of the coating, on a panel prepared in accordance with Vers

33、ion A in ISO 28199-1:2009. If a tendency toward sagging is already visible in the liquid layer, this should be marked at the edge of the panel. Film thickness is determined using the values measured in accordance with 9.4.2 of ISO 28199-1:2009. BS EN ISO 28199-3:2009ISO 28199-3:2009(E) 2 ISO 2009 Al

34、l rights reservedDimensions in millimetres Key 1 measuring series 1 2 coil-coated reference strip 3 clear-coated reference strip a distance from start of coating to 10-mm sag Figure 1 Assessment of sagging BS EN ISO 28199-3:2009ISO 28199-3:2009(E) ISO 2009 All rights reserved 34.2 Evaluation After d

35、rying/curing of the coating, visually assess the perforated area of the test panel (see ISO 28199-1:2009, Figure 2) for the determination of the tendency to sagging. Determine the hole at which the sag exceeds a length of 10 mm from the lower edge of the hole (see Figure 1), and determine the film t

36、hickness corresponding to that hole in accordance with 9.4.2 of ISO 28199-1:2009. The greater the distance a for a given film thickness, the less the tendency of the coating to sag. A control chart of film thickness vs distance a can assist in this evaluation. Other lengths of sag for measuring film

37、 thickness may be agreed by interested parties. 5 Bubbles 5.1 General Assessment of the bubble formation limit is made visually after drying/curing of the coating. Examples of bubbles in a coating material are shown in Figures A.1 and A.2. The film thickness values are determined in accordance with

38、9.4.2 of ISO 28199-1:2009. 5.2 Evaluation After drying/curing of the coating, assess the bubble formation limit (see 3.2 of ISO 28199-1:2009) visually in the range of the film thickness pattern in the wedge area (see ISO 28199-1:2009, Figure 5 and Figure 6). Determine the film thickness which corres

39、ponds to this bubble formation limit by using the film thickness measurement pattern. 6 Pinholing 6.1 General Assessment of the pinholing limit is made visually after drying/curing of the coating. Examples of pinholes in a coating material are shown in Figures A.3 to A.6. The film thickness values a

40、re determined in accordance with 9.4.2 of ISO 28199-1:2009. 6.2 Evaluation After drying/curing of the coating, assess the pinholing limit (see 3.11 of ISO 28199-1:2009) visually in the range of the film thickness pattern in the wedge area (see ISO 28199-1:2009, Figure 5 and Figure 6). Using the film

41、 thickness measurement pattern, determine the film thickness corresponding to this pinholing limit. 7 Process hiding power 7.1 General Assessment of the process hiding power (see ISO 28199-1:2009, 3.12) is made visually after drying/curing of the coating. The film thickness values are determined in

42、accordance with 9.4.2 of ISO 28199-1:2009. BS EN ISO 28199-3:2009ISO 28199-3:2009(E) 4 ISO 2009 All rights reserved7.2 Evaluation After drying/curing of the coating, assess the process hiding power visually in accordance with ISO 6504-3 in the range of the wedge-shaped layer applied to the contrast

43、strip. Determine the film thickness which corresponds to the process hiding power using the film thickness measurement pattern (see ISO 28199-1:2009, Figure 5 and Figure 6). 8 Test report Prepare a test report in accordance with Clause 12 of ISO 28199-1:2009. BS EN ISO 28199-3:2009ISO 28199-3:2009(E

44、) ISO 2009 All rights reserved 5Annex A (informative) Examples of bubbles, pinholes and craters Examples of bubbles, pinholes and craters are shown in Figures A.1 to A.9. NOTE The photographs of craters have been included in view of the fact that pinholes (see ISO 28199-1:2009, 3.10) are often confu

45、sed with craters (see ISO 28199-1:2009, 3.4). Figure A.1 Bubbles Top view BS EN ISO 28199-3:2009ISO 28199-3:2009(E) 6 ISO 2009 All rights reservedFigure A.2 Bubble Cross-section Figure A.3 Pinhole Top view BS EN ISO 28199-3:2009ISO 28199-3:2009(E) ISO 2009 All rights reserved 7Figure A.4 Pinhole 1 C

46、ross-section Figure A.5 Pinhole 2 Cross-section BS EN ISO 28199-3:2009ISO 28199-3:2009(E) 8 ISO 2009 All rights reservedFigure A.6 Pinhole 3 Cross-section Figure A.7 Crater Top view BS EN ISO 28199-3:2009ISO 28199-3:2009(E) ISO 2009 All rights reserved 9Figure A.8 Crater 1 Cross-section Figure A.9 C

47、rater 2 Cross-section BS EN ISO28199-3:2009BSI GroupHeadquarters 389Chiswick High Road,London, W4 4AL, UKTel +44 (0)20 8996 9001Fax +44 (0)20 8996 - British Standards InstitutionBSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards in

48、Europe and at theinternational level. It is incorporated by Royal Charter.RevisionsBritish Standards are updated by amendment or revision. Users of BritishStandards should make sure that they possess the latest amendments oreditions.It is the constant aim of BSI to improve the quality of our product

49、s and services.We would be grateful if anyone finding an inaccuracy or ambiguity while usingthis British Standard would inform the Secretary of the technical committeeresponsible, the identity of which can be found on the inside front cover. Tel:+44 (0)20 8996 9000. Fax: +44 (0)20 8996 7400.BSI offers members an individual updating service called PLUS which ensuresthat subscribers automatically receive the latest editions of s