DIN EN ISO 4628-5-2016 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 9No 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!%XL4“2534117www.din.deDIN EN ISO 4628-5

2、Paints and varnishes Evaluation of degradation of coatings Designation of quantity and size of defects, and of intensity of uniform changes in appearance Part 5: Assessment of degree of flaking (ISO 4628-5:2016);English version EN ISO 4628-5:2016,English translation of DIN EN ISO 4628-5:2016-07Besch

3、ichtungsstoffe Beurteilung von Beschichtungsschden Bewertung der Menge und der Gre von Schden und der Intensitt von gleichmigen Vernderungen im Aussehen Teil 5: Bewertung des Abbltterungsgrades (ISO 4628-5:2016);Englische Fassung EN ISO 4628-5:2016,Englische bersetzung von DIN EN ISO 4628-5:2016-07P

4、eintures 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 5: valuation du degr dcaillage (ISO 4628-5:2016);Version anglaise EN ISO 4628-5:2016,Traduction anglaise de DIN EN ISO 4628-5:

5、2016-07SupersedesDIN EN ISO 4628-5:2004-01www.beuth.deDocument comprises 14 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.July 201607.16DIN EN ISO 4628-5:2016-07 2 A comma is used as the decimal marker. National foreword This

6、 document (EN ISO 4628-5:2016) 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 preparation was DIN-Normenausschuss Beschichtu

7、ngs-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 title Paints and varnishes Evaluation of deg

8、radation 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: Assessment of degree of cracking Part 5:

9、 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: Assessment of degree of filiform corrosion

10、 The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 4628-1 DIN EN ISO 4628-1 ISO 13076 DIN EN ISO 13076 Amendments This standard differs from DIN EN ISO 4628-5:2004-01 as follows: a) a normative reference to ISO 13076 for illumination for

11、the visual assessment has been added. Previous editions DIN ISO 4628-5: 1986-12 DIN EN ISO 4628-5: 2004-01 DIN EN ISO 4628-5:2016-07 3 National Annex NA (informative) Bibliography DIN EN ISO 4628-1, Paints and varnishes Evaluation of degradation of coatings Designation of quantity and size of defect

12、s, and of intensity of uniform changes in appearance Part 1: General introduction and designation system DIN EN ISO 13076, Paints and varnishes Lighting and procedure for visual assessments of coatings DIN EN ISO 4628-5:2016-07 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUR

13、OPISCHE NORM EN ISO 4628-5 February 2016 ICS 87.040 Supersedes EN ISO 4628-5:2003 English Version Paints and varnishes Evaluation of degradation of coatings Designation of quantity and size of defects, and of intensity of uniform changes in appearance Part 5: Assessment of degree of flaking (ISO 462

14、8-5:2016) Peintures 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 5: valuation du degr dcaillage (ISO 4628-5:2016) Beschichtungsstoffe Beurteilung von Beschichtungsschden Bewertung

15、der Menge und der Gre von Schden und der Intensitt von gleichmigen Vernderungen im Aussehen Teil 5: Bewertung des Abbltterungsgrades (ISO 4628-5:2016) This European Standard was approved by CEN on 19 December 2015. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipu

16、late 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 standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European S

17、tandard 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 notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the

18、national standards bodies of 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, Portugal, Romania,

19、 Slovakia, Slovenia, Spain, Sweden, Switzerland, 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 2016 CEN All rights of exploitation in any form and by any

20、 means reserved worldwide for CEN national Members. Ref. No. EN ISO 4628-5:2016 E EN ISO 4628-5:2016 (E) Contents Page 2European foreword . 3 Foreword 4 1 Scope 5 2 Normative references 5 3 Terms and definitions . 5 4 Assessment 5 5 Expression of results 6 6 Test report . 6 Bibliography . 10 DIN EN

21、ISO 4628-5:2016-07 EN ISO 4628-5:2016 (E) European foreword This document (EN ISO 4628-5:2016) has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes” in collaboration with Technical Committee CEN/TC 139 “Paints and varnishes” the secretariat of which is held by DIN. This European

22、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 to the possibility that some of the elements o

23、f 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 4628-5:2003. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following c

24、ountries 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, Lithuania, Luxembourg, Malta, Netherlands, Norway,

25、 Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 4628-5:2016 has been approved by CEN as EN ISO 4628-5:2016 without any modification. 3DIN EN ISO 4628-5:2016-07 ForewordISO (the International Organization fo

26、r 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 technical committee has been established has the

27、 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 electrotechnical standardization.The proced

28、ures 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 was drafted in accordance with the editorial

29、 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 patent rights. Details of any patent rights i

30、dentified 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 not constitute an endorsement.For an explanati

31、on 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 informationThe committee responsible for this document

32、is ISO/TC 35, Paints and varnishes, Subcommittee SC 9, General test methods for paints and varnishes.This third edition cancels and replaces the second edition (ISO 4628-5:2003), which has been technically revised with the following changes:a) a normative reference to ISO 13076 for illumination for

33、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 appearance: Part 1: General introduction and designation syst

34、em 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: Assessment of degree of chalking by velvet method Part 8: Assessment

35、of degree of delamination and corrosion around a scribe or other artificial defect Part 10: Assessment of degree of filiform corrosion4EN ISO 4628-5:2016 (E) DIN EN ISO 4628-5:2016-07 1 ScopeThis part of ISO 4628 specifies a method for assessing the degree of flaking of coatings by comparison with p

36、ictorial standards.ISO 4628-1 defines the system used for designating the quantity and size of defects and the intensity of changes in appearance of coatings and outlines the general principles of the system. This system is intended to be used, in particular, for defects caused by ageing and weather

37、ing, 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 edition cited applies. For undated refe

38、rences, 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 definitions apply.3.1degree of flakingra

39、ting characterizing flaked areas in a coating in terms of quantity, size, and depth4 AssessmentAssess the quantity of flaking by reference to Table 1 and using as examples Figure 1 or Figure 2, depending on the type of flaking.NOTE Figure 1 shows flaking without preferential direction and Figure 2 s

40、hows flaking in a preferential direction due to anisotropy of the substrate.5EN ISO 4628-5:2016 (E) DIN EN ISO 4628-5:2016-07 Table 1 Rating scheme for designating the quantity of flakingRating Flaked area %0 01 0,12 0,33 14 35 15Assess the average size of the individual areas exposed by flaking in

41、accordance with Table 2.Table 2 Rating scheme for designating the size of areas exposed by flakingRating Size of flaking0 not visible under 10 magnification1 up to 1 mm2 up to 3 mm3 up to 10 mm4 up to 30 mm5 larger than 30 mmWhere a test area exhibits flaked areas of various sizes, quote as the size

42、 rating that of the largest areas which are numerous enough to be typical of the test area.If possible, indicate the depth of flaking by reference to the level in the coating system where failure occurs. A distinction is made between two main types of failure by flaking:a) coat(s) flaking from under

43、lying coat;b) the whole coating system flaking from substrate.Carry out the assessment under good illumination, as specified in ISO 13076.5 Expression of resultsExpress the numerical ratings of the quantity and size of flaking, where possible together with the depth of flaking (a or b), shown in Fig

44、ures 1 and 2 together with the approximate dimensions of the area concerned, or its proportion to the total area, expressed as a percentage.For example, for quantity 3, size 2, with the whole coating system flaking from the substrate, report the result as flaking; degree of flaking 3(S2)b.If necessa

45、ry, the assessment may be amplified in words.6 Test reportThe test report shall contain at least the following information:a) all details necessary to identify the coating examined;b) a reference to this part of ISO 4628, i.e. ISO 4628-5;6EN ISO 4628-5:2016 (E) DIN EN ISO 4628-5:2016-07 c) the type

46、of surface examined, its size and, if appropriate, its location;d) the result of the assessment in accordance with Clause 5;e) an indication of the illumination under which the assessment was carried out;f) any unusual features (anomalies) observed during the assessment;g) the date of the examinatio

47、n.7EN ISO 4628-5:2016 (E) DIN EN ISO 4628-5:2016-07 a) Quantity (density) 1 b) Quantity (density) 2 c) Quantity (density) 3d) Quantity (density) 4 e) Quantity (density) 5Figure 1 Flaking without preferential direction (panels of 100 cm2to 200 cm2)8EN ISO 4628-5:2016 (E) DIN EN ISO 4628-5:2016-07 a)

48、Quantity (density) 1 b) Quantity (density) 2 c) Quantity (density) 3d) Quantity (density) 4 e) Quantity (density) 5Figure 2 Flaking in a preferential direction (panels of 100 cm2to 200 cm2)9EN ISO 4628-5:2016 (E) DIN EN ISO 4628-5:2016-07 Bibliography1 ISO 4628-1, 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 system10EN ISO 4628-5:2016 (E) DIN EN ISO 4628-5:2016-07