DIN EN ISO 4628-2-2016 Paints and varnishes - Evaluation of degradation of coatings - Designation of quantity and size of defects and of intensity of uniform changes in appearance .pdf

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1、English price group 12No 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!%XL0“2534113www.din.deDIN EN ISO 4628-

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

3、eschichtungsstoffe Beurteilung von Beschichtungsschden Bewertung der Menge und der Gre von Schden und der Intensitt von gleichmigen Vernderungen im Aussehen Teil 2: Bewertung des Blasengrades (ISO 4628-2:2016);Englische Fassung EN ISO 4628-2:2016,Englische bersetzung von DIN EN ISO 4628-2:2016-07Pei

4、ntures 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 2: valuation du degr de cloquage (ISO 4628-2:2016);Version anglaise EN ISO 4628-2:2016,Traduction anglaise de DIN EN ISO 4628-2:

5、2016-07SupersedesDIN EN ISO 4628-2:2004-01www.beuth.deDocument comprises 21 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.July 201607.16DIN EN ISO 4628-2:2016-07 2 A comma is used as the decimal marker. National foreword This

6、 document (EN ISO 4628-2:2016) 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 4628-2:2004-01 as follows: a) a normative reference to ISO 13076 for illumination for

11、the visual assessment has been added; b) a note concerning the visibility of the S1 size of blisters has been added. Previous editions DIN 53209: 1970-11 DIN EN ISO 4628-2: 2004-01 DIN EN ISO 4628-2:2016-07 3 National Annex NA (informative) Bibliography DIN EN ISO 4628-1, Paints and varnishes Evalua

12、tion 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 DIN EN ISO 13076, Paints and varnishes Lighting and procedure for visual assessments of coatings DIN EN ISO 4628-2:2016-0

13、7 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 4628-2 February 2016 ICS 87.040 Supersedes EN ISO 4628-2:2003 English Version Paints and varnishes Evaluation of degradation of coatings Designation of quantity and size of defects, and of intensity of unif

14、orm changes in appearance Part 2: Assessment of degree of blistering (ISO 4628-2:2016) 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 2: valuation du degr de cloquage (ISO

15、4628-2:2016) Beschichtungsstoffe Beurteilung von Beschichtungsschden Bewertung der Menge und der Gre von Schden und der Intensitt von gleichmigen Vernderungen im Aussehen Teil 2: Bewertung des Blasengrades (ISO 4628-2:2016) This European Standard was approved by CEN on 19 December 2015. CEN members

16、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 standards may be obtained on application t

17、o 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 notified to the CEN-CENELEC Management

18、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, Iceland, Ireland, Italy, Latvia, Lith

19、uania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, 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

20、-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 4628-2:2016 E EN ISO 4628-2:2016 (E) 2 Contents Page European foreword . 3 Foreword 4 1 Scope 5 2 Normative references 5 3 Terms and definitions . 5 4 Assessme

21、nt 5 5 Expression of results 6 6 Test report . 6 Annex A (normative) Calibration images . 11 Annex B (informative) Correlation between ISO 4628-2 and ASTM D 714 rating systems 16 Bibliography . 17 DIN EN ISO 4628-2:2016-07 EN ISO 4628-2:2016 (E) 3 European foreword This document (EN ISO 4628-2:2016)

22、 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 Standard shall be given the status of a national standard, either by publication of an identic

23、al 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 of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held resp

24、onsible for identifying any or all such patent rights. This document supersedes EN ISO 4628-2:2003. 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, Croatia, C

25、yprus, 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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the Uni

26、ted Kingdom. Endorsement notice The text of ISO 4628-2:2016 has been approved by CEN as EN ISO 4628-2:2016 without any modification. DIN EN ISO 4628-2:2016-07 ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies).

27、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 that committee. International organizations, governmental and non-g

28、overnmental, 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 procedures used to develop this document and those intended for its further maintenance are described

29、 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 rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives). Attention is drawn to th

30、e 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 identified during the development of the document will be in the Introduction and/or on the ISO

31、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 explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as w

32、ell 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 is ISO/TC 35, Paints and varnishes, Subcommittee SC 9, General test methods for paints and var

33、nishes.This third edition cancels and replaces the second edition (ISO 4628-2:2003), which has been technically revised with the following changes:a) a normative reference to ISO 13076 for illumination for the assessment has been added;b) a note concerning visibility of S1 size of blisters has been

34、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 system Part 2: Assessment of

35、 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 of degree of delaminatio

36、n and corrosion around a scribe or other artificial defect Part 10: Assessment of filiform corrosion4EN ISO 4628-2:2016 (E) DIN EN ISO 4628-2:2016-07 1 ScopeThis part of ISO 4628 specifies a method for assessing the degree of blistering of coatings by comparison with pictorial standards.The pictoria

37、l standards provided in this part of ISO 4628 illustrate blisters in the sizes 2, 3, 4, and 5, and each size in the quantities (densities) 2, 3, 4, and 5.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 out

38、lines the general principles of the system. This system is intended to be used, in particular, 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 refere

39、nced 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 document (including any amendments) applies.ISO 13076, Paints and varnishes Lighting and procedure for visual assessment

40、s of coatings3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.3.1degree of blisteringrating characterizing blisters in a coating in terms of quantity (density) and size4 AssessmentAssess the quantity and size of the blisters in a coating by means of

41、 the pictures given in Figure 1 to Figure 4.NOTE The S1 size of blisters is not visible with normal corrected vision but only with 10 magnification.Where the area to be examined exhibits blisters of varying size, quote as the size rating that of the blisters which are typical of the test area.Carry

42、out the assessment under good illumination, as specified in ISO 13076.If the assessment is to be done using an optical imaging system, calibrate the system using the images given in Annex A.5EN ISO 4628-2:2016 (E) DIN EN ISO 4628-2:2016-07 5 Expression of resultsExpress the ratings for the quantity

43、(density) and size of the blisters as given in Figure 1 to Figure 4, together with the approximate dimensions of the area concerned, or its portion of the total area, expressed as a percentage.For example, if the coating is assessed as having blisters quantity 2, size 2, i.e. matching Figure 1 a), i

44、t shall be reported as blistering; degree of blistering 2(S2).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 4628-2;c) the type of surface examined, its size and

45、, if appropriate, its location;d) the result of the evaluation as indicated in Clause 5;e) an indication of the illumination under which the assessment was carried out;f) any unusual features (anomalies) noted during the assessment;g) the date of the examination.6EN ISO 4628-2:2016 (E) DIN EN ISO 46

46、28-2:2016-07 a) Quantity (density) 2 2(S2) b) Quantity (density) 3 3(S2)c) Quantity (density) 4 4(S2) d) Quantity (density) 5 5(S2)Figure 1 Blisters of size 27EN ISO 4628-2:2016 (E) DIN EN ISO 4628-2:2016-07 a) Quantity (density) 2 2(S3) b) Quantity (density) 3 3(S3)c) Quantity (density) 4 4(S3) d)

47、Quantity (density) 5 5(S3)Figure 2 Blisters of size 38EN ISO 4628-2:2016 (E) DIN EN ISO 4628-2:2016-07 a) Quantity (density) 2 2(S4) b) Quantity (density) 3 3(S4)c) Quantity (density) 4 4(S4) d) Quantity (density) 5 5(S4)Figure 3 Blisters of size 49EN ISO 4628-2:2016 (E) DIN EN ISO 4628-2:2016-07 a)

48、 Quantity (density) 2 2(S5) b) Quantity (density) 3 3(S5)c) Quantity (density) 4 4(S5) d) Quantity (density) 5 5(S5)Figure 4 Blisters of size 510EN ISO 4628-2:2016 (E) DIN EN ISO 4628-2:2016-07 Annex A (normative) Calibration imagesIf the assessment is to be done using an optical imaging system, use

49、 the images given in Figure A.1 to Figure A.4 to calibrate the imaging system.11EN ISO 4628-2:2016 (E) DIN EN ISO 4628-2:2016-07 a) Quantity (density) 2 2(S2) b) Quantity (density) 3 3(S2)c) Quantity (density) 4 4(S2 d) Quantity (density) 5 5(S2)Figure A.1 Blisters of size 212EN ISO 4628-2:2016 (E) DIN EN ISO 4628-2:2016-07 a) Quantity (density) 2 2(S3) b) Quantity (density) 3 3(S3)c) Quantity (density)