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DIN EN ISO 4628-10-2016 Paints and varnishes - Evaluation of degradation of coatings - Designation of quantity and size of defects and of intensity of uniform changes in appearance.pdf

1、English price group 10No 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 87.040!%XL6“2534119www.din.deDIN EN ISO 4628-

2、10Paints and varnishes Evaluation of degradation of coatings Designation of quantity and size of defects, and of intensity of uniform changes in appearance Part 10: Assessment of degree of filiform corrosion (ISO 4628-10:2016);English version EN ISO 4628-10:2016,English translation of DIN EN ISO 462

3、8-10:2016-07Beschichtungsstoffe Beurteilung von Beschichtungsschden Bewertung der Menge und der Gre von Schden und der Intensitt von gleichmigen Vernderungen im Aussehen Teil 10: Bewertung der Filiformkorrosion (ISO 4628-10:2016);Englische Fassung EN ISO 4628-10:2016,Englische bersetzung von DIN EN

4、ISO 4628-10:2016-07Peintures et vernis valuation de la dgradation des revtements Dsignation de la quantit et de la dimension des dfauts, et de lintensit des changements uniformes daspect Partie 10: valuation du degr de corrosion filiforme (ISO 4628-10:2016);Version anglaise EN ISO 4628-10:2016,Tradu

5、ction anglaise de DIN EN ISO 4628-10:2016-07SupersedesDIN EN ISO 4628-10:2004-01www.beuth.deDocument comprises 16 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.July 201608.16DIN EN ISO 4628-10:2016-07 2 A comma is used as the

6、 decimal marker. National foreword This document (EN ISO 4628-10:2016) has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes” in collaboration with Technical Committee CEN/TC 139 “Paints and varnishes” (Secretariat: DIN, Germany). The responsible German body involved in its prepar

7、ation was DIN-Normenausschuss Beschichtungs-stoffe und Beschichtungen (DIN Standards Committee Coatings and Coating Materials), Working Committee NA 002-00-07 AA Allgemeine Prfverfahren fr Beschichtungsstoffe und Beschichtungen. DIN EN ISO 4628 consists of the following parts, under the general titl

8、e Paints and varnishes Evaluation of degradation of coatings Designation of quantity and size of defects, and of intensity of uniform changes in appearance: Part 1: General introduction and designation system Part 2: Assessment of degree of blistering Part 3: Assessment of degree of rusting Part 4:

9、Assessment of degree of cracking Part 5: Assessment of degree of flaking Part 6: Assessment of degree of chalking by tape method Part 7: Assessment of degree of chalking by velvet method Part 8: Assessment of degree of delamination and corrosion around a scribe or other artificial defect Part 10: As

10、sessment of degree of filiform corrosion The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 4623-1:2000 DIN EN ISO 4623-1:2002-06 ISO 4623-2:2003 DIN EN ISO 4623-2:2004-06 ISO 13076 DIN EN ISO 13076 Amendments This standard differs from DI

11、N EN ISO 4628-10:2004-01 as follows: a) a normative reference to ISO 13076 for illumination for the visual assessment has been added. Previous editions DIN EN ISO 4628-10: 2004-01 DIN EN ISO 4628-10:2016-07 3 National Annex NA (informative) Bibliography DIN EN ISO 4623-1:2002-06, Paints and varnishe

12、s Determination of resistance to filiform corrosion Part 1: Steel substrate (ISO 4623-1:2000) DIN EN ISO 4623-2:2004-06, Paints and varnishes Determination of resistance to filiform corrosion Part 2: Aluminium substrates (ISO 4623-2:2003) DIN EN ISO 13076, Paints and varnishes Lighting and procedure

13、 for visual assessments of coatings 4 This page is intentionally blank DIN EN ISO 4628-10:2016-07 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 4628-10 February 2016 ICS 87.040 Supersedes EN ISO 4628-10:2003 English Version Paints and varnishes Evaluation of degradation of coatings Design

14、ation of quantity and size of defects, and of intensity of uniform changes in appearance Part 10: Assessment of degree of filiform corrosion (ISO 4628-10:2016) Peintures et vernis valuation de la dgradation des revtements Dsignation de la quantit et de la dimension des dfauts, et de lintensit des ch

15、angements uniformes daspect Partie 10: valuation du degr de corrosion filiforme (ISO 4628-10:2016) Beschichtungsstoffe Beurteilung von Beschichtungsschden Bewertung der Menge und der Gre von Schden und der Intensitt von gleichmigen Vernderungen im Aussehen Teil 10: Bewertung der Filiformkorrosion (I

16、SO 4628-10:2016) This European Standard was approved by CEN on 19 December 2015. 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 b

17、ibliographical 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 translation under the res

18、ponsibility 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, Former Yugoslav R

19、epublic 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 United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NO

20、RMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 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 4628-10:2016 E EN ISO 4628-10:2016 (E) 2 Contents Page European fo

21、reword . 3 Foreword 4 1 Scope 5 2 Normative references 5 3 Terms and definitions . 5 4 Assessment 6 5 Expression of results 6 6 Test report . 6 Annex A (informative) Pictorial examples of different ratings for the length of the longest filament L and the most frequent filament length M 9 Bibliograph

22、y . 12 DIN EN ISO 4628-10:2016-07 EN ISO 4628-10:2016 (E) 3 DIN EN ISO 4628-10:2016-07 European foreword This document (EN ISO 4628-10:2016) has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes” in collaboration with Technical Committee CEN/TC 139 “Paints and varnishes” the secre

23、tariat 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 2016, and conflicting national standards shall be withdrawn at the latest by August 2016. Attention is drawn

24、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 rights. This document supersedes EN ISO 4628-10:2003. According to the CEN-CENELEC Internal Regulations, the nati

25、onal standards organizations of the following countries are 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, Lit

26、huania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 4628-10:2016, Corrected version 2016-06-01 has been approved by CEN as EN ISO 4628-10:2016 without any modifica

27、tion. ForewordISO (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 whic

28、h 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, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all ma

29、tters 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 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This d

30、ocument 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

31、 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 received (see www.iso.org/patents). Any trade name used in this document is information given for the convenience of users and

32、 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 adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary inf

33、ormationThe committee responsible for this document is ISO/TC 35, Paints and varnishes, Subcommittee SC 9, General test methods for paints and varnishes.This second edition cancels and replaces the first edition (ISO 4628-10:2003), which has been technically revised with the following changes:a) a n

34、ormative reference to ISO 13076 for illumination for the assessment has been added.ISO 4628 consists of the following parts, under the general title Paints and varnishes Evaluation of degradation of coatings Designation of quantity and size of defects, and of intensity of uniform changes in appearan

35、ce: Part 1: General introduction and assessment of general defects Part 2: Assessment of degree of blistering Part 3: Assessment of degree of rusting Part 4: Assessment of degree of cracking Part 5: Assessment of degree of flaking Part 6: Assessment of degree of chalking by tape method Part 7: Asses

36、sment of chalking by velvet method Part 8: Assessment of degree of delamination and corrosion around a scribe or other artificial defect Part 10: Assessment of degree of filiform corrosionThis corrected version of ISO 4628-10:2016 incorporates the following correction: in Figure A.1 b), the descript

37、ion has been corrected to read “b) L2/M2” instead of “b) L1/M2”.EN ISO 4628-10:2016 (E) DIN EN ISO 4628-10:2016-07 41 ScopeThis part of ISO 4628 specifies a method for assessing the amount of filiform corrosion developed from a scribed mark by measuring the length of the longest filament L and the m

38、ost frequent length M of filaments.Pictorial examples provided in Annex A of this part of ISO 4628 illustrate different ratings for the length of the longest filament L and the most frequent length M of the filaments. A comparison of the test panels with the 12 pictures in Annex A does not supersede

39、 the obligatory numerical assessment (method 1 or 2).ISO 4628-1 defines a system used for designating the quantity and size of defects and the intensity of uniform changes in appearance of coatings and outlines the general principles of the system. This system is intended to be used, in particular,

40、for defects caused by ageing and weathering, and for uniform changes such as colour changes, for example yellowing.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the

41、 edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 13076, Paints and varnishes Lighting and procedure for visual assessments of coatings3 Terms and definitionsFor the purposes of this document, the following terms and

42、definitions apply.3.1filiform corrosiontype of corrosion proceeding under a coat of paint, varnish, or related product, in the form of threads, generally starting from bare edges or from local damage of the coatingNote 1 to entry: Usually the threads are irregular in length and direction of growth,

43、but they may also be nearly parallel and of approximately equal length.Note 2 to entry: Filiform corrosion can also occur under other protective coatings.Note 3 to entry: Usually the threads follow the direction of extrusion of a metal substrate, do not cross over one another, and need to be initiat

44、ed by aggressive ions.SOURCE: ISO 4623-1:2000, 3.1, modified Note 3 to entry has been added; ISO 4623-2:2003, 3.1, modified The notes to entry have been numbered.EN ISO 4628-10:2016 (E) DIN EN ISO 4628-10:2016-07 54 Assessment4.1 GeneralCarry out the assessment under good illumination, as specified

45、in ISO 13076.4.2 Method 1This applies where there is regular corrosion see Figure 1 a).It includes the following: measuring the maximum distances Lland Lr, in millimetres, from the scribed line to the point to which the filiform corrosion has developed on the left-hand side and on the right-hand sid

46、e respectively see Figure 1a), in order to calculate the length of the longest filament L which is the mean value of Lland Lr; measuring the distances Mland Mr, in millimetres, to which the scribed line to which the majority of filaments have developed from the left-hand side and on the right-hand s

47、ide respectively see Figure 1a), in order to calculate the most frequent filament length M, which is the mean value of Mland Mr.4.3 Method 2This applies where there is irregular corrosion see Figure 1 b).It includes: measuring L, see method 1; measuring Ml1, Mr1, Ml2, Mr2, etc., in order to calculat

48、e the overall values Mland Mrusing the following equations:MxM xM xM xM xMzll1 l2 l3 l4 nln=+1234.MyM yM yM yM yMzrr1 r2 r3 r4 nrn=+1234.where Ml1, Mr1, x1, y1, etc., and z are as shown in Figure 1 b).5 Expression of resultsExpress the numerical ratings of the length of the longest filament L and th

49、e most frequent filament length M as follows: filiform corrosion, L5/M3.This means a length of the longest filament is 5 mm and a most frequent filament length is 3 mm.6 Test reportThe test report shall contain at least the following information:a) all details necessary to identify the coating examined;EN ISO 4628-10:2016 (E) DIN EN ISO 4628-10:2016-07 6b) a reference to this part of ISO 4628, i.e. ISO 4628-10;c) the type of surface

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