DIN EN ISO 4628-3-2016 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!%XL1“2534114www.din.deDIN EN ISO 4628-

2、3Paints and varnishes Evaluation of degradation of coatings Designation of quantity and size of defects, and of intensity of uniform changes in appearance Part 3: Assessment of degree of rusting (ISO 4628-3:2016);English version EN ISO 4628-3:2016,English translation of DIN EN ISO 4628-3:2016-07Besc

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

4、s 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 3: valuation du degr denrouillement (ISO 4628-3:2016);Version anglaise EN ISO 4628-3:2016,Traduction anglaise de DIN EN ISO 4628-3:20

5、16-07SupersedesDIN EN ISO 4628-3:2004-01www.beuth.deDocument comprises 23 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.July 201608.16DIN EN ISO 4628-3:2016-07 2 A comma is used as the decimal marker. National foreword This d

6、ocument (EN ISO 4628-3:2016) 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 Beschichtung

7、s-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 degra

8、dation 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: A

9、ssessment 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 T

10、he DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 4628-1:2016 DIN EN ISO 4628-1:2016-06 ISO 8501-1 DIN EN ISO 8501-1 ISO 13076 DIN EN ISO 13076 Amendments This standard differs from DIN EN ISO 4628-3:2004-01 as follows: a) a normative refe

11、rence to ISO 13076 for illumination for the visual assessment has been added; b) a note on the rusted area of the degree of rusting Ri 5 has been added. Previous editions DIN 53210: 1930-02, 1964-06, 1978-02 DIN EN ISO 4628-3: 2004-01 DIN EN ISO 4628-3:2016-07 3 National Annex NA (informative) Bibli

12、ography DIN EN ISO 4628-1:2016-06, 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 (ISO 4628-1:2016) DIN EN ISO 8501-1, Preparation of steel s

13、ubstrates before application of paints and related products Visual assessment of surface cleanliness Part 1: Rust grades and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previous coatings DIN EN ISO 13076, Paints and varnishes Lighting and procedur

14、e for visual assessments of coatings DIN EN ISO 4628-3:2016-07 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 4628-3 February 2016 ICS 87.040 Supersedes EN ISO 4628-3:2003 English Version Paints and varnishes Evaluation of degradation of coatings Designat

15、ion of quantity and size of defects, and of intensity of uniform changes in appearance Part 3: Assessment of degree of rusting (ISO 4628-3:2016) Peintures et vernis valuation de la dgradation des revtements Dsignation de la quantit et de la dimension des dfauts, et de lintensit des changements unifo

16、rmes daspect Partie 3: valuation du degr denrouillement (ISO 4628-3:2016) Beschichtungsstoffe Beurteilung von Beschichtungsschden Bewertung der Menge und der Gre von Schden und der Intensitt von gleichmigen Vernderungen im Aussehen Teil 3: Bewertung des Rostgrades (ISO 4628-3:2016) This European Sta

17、ndard 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 bibliographical references concerni

18、ng 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 responsibility of a CEN member into i

19、ts 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 Republic of Macedonia, France, Germ

20、any, 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 NORMALISATION EUROPISCHES KOMITEE FR

21、 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 4628-3:2016 E EN ISO 4628-3:2016 (E) Contents Page 2European foreword . 3 Foreword 4 1 Scope 5 2 Nor

22、mative references 5 3 Terms and definitions . 5 4 Assessment 6 5 Expression of results 6 6 Test report . 7 Annex A (normative) Calibration images . 13 Annex B (informative) Correlation between the ISO rating system and other systems 18 Bibliography . 19 DIN EN ISO 4628-3:2016-07 EN ISO 4628-3:2016 (

23、E) European foreword This document (EN ISO 4628-3:2016) 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 Standard shall be given the status of a

24、 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 of this document may be the subject of p

25、atent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 4628-3:2003. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this Eu

26、ropean 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, Portugal, Romania, Slovakia, S

27、lovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 4628-3:2016 has been approved by CEN as EN ISO 4628-3:2016 without any modification. 3DIN EN ISO 4628-3:2016-07 ForewordISO (the International Organization for Standardization) is a worldwide feder

28、ation 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 that commit

29、tee. 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 procedures used to develop this document and

30、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 rules of the ISO/IEC Directives, Part

31、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 identified during the development of the

32、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 explanation on the meaning of ISO specific terms

33、 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 is ISO/TC 35, Paints and varnishes, Sub

34、committee SC 9, General test methods for paints and varnishes.This third edition cancels and replaces the second edition (ISO 4628-3:2003), 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

35、 on the rusted area of the degree of rusting Ri 5 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: Genera

36、l 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: Assessment of degree of flaking Part 6: Assessment of degree of chalking by tape method Part 7: Assessment of degree of chalking b

37、y 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 corrosion4EN ISO 4628-3:2016 (E) DIN EN ISO 4628-3:2016-07 1 ScopeThis part of ISO 4628 specifies a method for assessing the degree of rusti

38、ng of coatings by comparison with pictorial standards.The pictorial standards provided in this part of ISO 4628 show coated steel surfaces which have deteriorated to different degrees by a combination of rust broken through the coating and visible underrust.NOTE 1 The pictorial standards have been s

39、elected from the “European rust scale” published by the European Confederation of Paint, Printing Ink and Artists Colours Manufacturers Associations (CEPE), Brussels. The correlation between the ISO scale and the “European rust scale” is given in Annex B, Table B.1.NOTE 2 The correlation between the

40、 ISO scale and the rating system of ASTM D 610 is given in Annex B, Table B.2.NOTE 3 The rust formation on uncoated steel surfaces is designated in accordance with ISO 8501-1 (rust grades A, B, C, and D).ISO 4628-1 defines the system used for designating the quantity and size of defects and the inte

41、nsity 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 weathering, and for uniform changes such as colour changes, for example yellowing.2 Normative referencesThe following docu

42、ments, 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 references, the latest edition of the referenced document (including any amendments) applies.ISO 4628-1:2016, Paints an

43、d 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 systemISO 13076, Paints and varnishes Lighting and procedure for visual assessments of coatings3 Terms and def

44、initionsFor the purposes of this document, the following terms and definitions apply.3.1degree of rustingRirating characterizing the degree of rust formation (rust broken through and visible underrust) on a coating5EN ISO 4628-3:2016 (E) DIN EN ISO 4628-3:2016-07 4 AssessmentAssess the degree of rus

45、ting (Ri) on a coating by means of the pictorial standards given in Figure 1 to Figure 5. The approximate areas rusted (rust broken through plus visible underrust) shown on these standards are as indicated in Table 1.Procedures for assessing invisible underrust, if required, shall be agreed between

46、the interested parties.Where different degrees of rusting occur in different parts of the area being assessed, indicate these degrees of rusting together with the part where each occurs.Carry out the assessment under good illumination, as specified in ISO 13076.If the average size of the rust spots

47、on the test area differs considerably from those shown in the pictorial standards, an indication of their size may be given by reference to ISO 4628-1:2015, Table 2.NOTE The pictorial standards are basically intended for assessing the degree of rusting of coated steel. They can be used for designati

48、ng the degree of corrosion of coated non-ferrous metals if the form of breakdown is comparable with that shown in the standards.Table 1 Degree of rusting and rusted areaDegree of rusting Rusted area%Ri 0Ri 1Ri 2Ri 3Ri 4Ri 500,050,51840 to 50aaWhen measuring the rusted area in Figure A.5, it is only

49、about 35 %. If rust is assessed visually using Figure 5, the impression of rusted area is 40 % to 50 %. One reason might be that partly delaminated rust flakes are not distinguished from other rusted areas. But this is negligible because Ri 5 normally is outside any specification.If the assessment is to be done by an optical imaging system, calibrate the system using the images given in Annex A.5 Expression of resultsExpress the degree of rust