DIN EN ISO 4628-1-2016 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!%XL“2534156www.din.deDIN EN ISO 4628-1P

2、aints 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);English version EN ISO 4628-1:2016,English translation of DIN EN ISO 4628-1:2

3、016-07Beschichtungsstoffe Beurteilung von Beschichtungsschden Bewertung der Menge und der Gre von Schden und der Intensitt von gleichmigen Vernderungen im Aussehen Teil 1: Allgemeine Einfhrung und Bewertungssystem (ISO 4628-1:2016);Englische Fassung EN ISO 4628-1:2016,Englische bersetzung von DIN EN

4、 ISO 4628-1:2016-07Peintures 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 1: Introduction gnrale et systme de dsignation (ISO 4628-1:2016);Version anglaise EN ISO 4628-1:2016,Tradu

5、ction anglaise de DIN EN ISO 4628-1:2016-07SupersedesDIN EN ISO 4628-1:2004-01www.beuth.deDocument comprises 12 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.July 201607.16DIN EN ISO 4628-1:2016-07 2 A comma is used as the de

6、cimal marker. National foreword This document (EN ISO 4628-1:2016) 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 preparatio

7、n 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 title Pa

8、ints 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: Asse

9、ssment 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: Assess

10、ment of degree of filiform corrosion The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 10289 DIN EN ISO 10289 ISO 13076 DIN EN ISO 13076 Amendments This standard differs from DIN EN ISO 4628-1:2004-01 as follows: a) a lower limit for visu

11、al assessment of defects has been introduced in Table 2; b) a normative reference to ISO 13076 for illumination for the visual assessment has been added. Previous editions DIN 53230: 1973-04, 1983-04 DIN EN ISO 4628-1: 2004-01 DIN EN ISO 4628-1:2016-07 3 National Annex NA (informative) Bibliography

12、DIN EN ISO 10289, Methods for corrosion testing of metallic and other inorganic coatings on metallic substrates Rating of test specimens and manufactured articles subjected to corrosion test DIN EN ISO 13076, Paints and varnishes Lighting and procedure for visual assessments of coatings DIN EN ISO 4

13、628-1:2016-07 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 4628-1 February 2016 ICS 87.040 Supersedes EN ISO 4628-1:2003 English Version Paints and varnishes Evaluation of degradation of coatings Designation of quantity and size of defects, and of inten

14、sity of uniform changes in appearance Part 1: General introduction and designation system (ISO 4628-1:2016) 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 1: Introduction g

15、nrale et systme de dsignation (ISO 4628-1:2016) Beschichtungsstoffe Beurteilung von Beschichtungsschden Bewertung der Menge und der Gre von Schden und der Intensitt von gleichmigen Vernderungen im Aussehen Teil 1: Allgemeine Einfhrung und Bewertungssystem (ISO 4628-1:2016) This European Standard was

16、 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 concerning such n

17、ational 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 its own la

18、nguage 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, Germany, Gree

19、ce, 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 NORMUNG

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

21、ferences 5 3 General principles of the system . 5 4 Assessment of defects and of intensity of changes 6 4.1 General 6 4.2 Designation of quantity of defects . 6 4.3 Designation of size of defects 6 4.4 Designation of intensity of changes 6 5 Expression of results 7 6 Test report . 7 Bibliography 8 D

22、IN EN ISO 4628-1:2016-07 EN ISO 4628-1:2016 (E) 3DIN EN ISO 4628-1:2016-07 European foreword This document (EN ISO 4628-1:2016) 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 whi

23、ch 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 to the possib

24、ility 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 4628-1:2003. According to the CEN-CENELEC Internal Regulations, the national standards

25、 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, Lithuania, Luxemb

26、ourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 4628-1:2016 has been approved by CEN as EN ISO 4628-1:2016 without any modification. ForewordISO (the International Organizat

27、ion 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 which a technical committee has been established h

28、as 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 matters of electrotechnical standardization.The

29、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 document was drafted in accordance with the edi

30、torial 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 rig

31、hts 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 does not constitute an endorsement.For an expl

32、anation 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 docu

33、ment is ISO/TC 35, Paints and varnishes, Subcommittee SC 9, General test methods for paints and varnishes.This fourth edition cancels and replaces the third edition (ISO 4628-1:2003), which has been technically revised with the following changes:a) a lower limit for visual assessment of defects has

34、been introduced in Table 2;b) a normative 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 intensi

35、ty 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: Assessment of degree of flaking Part 6: Assessment of degree of chalking by tap

36、e 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 corrosion4EN ISO 4628-1:2016 (E) DIN EN ISO 4628-1:2016-07 1 ScopeThis part of ISO 4628 d

37、efines a system 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 used throughout ISO 4628. This system is intended to be used, in particular, for defects caused by ageing and weathering, and for

38、uniform changes, for example yellowing.The other parts of ISO 4628 provide pictorial standards or other means for evaluating particular types of defect. As far as possible, already existing evaluation schemes have been used as the basis.This part of ISO 4628 is also used for assessing defects not co

39、vered by the other parts of ISO 4628.2 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 references, the latest edition of the refe

40、renced document (including any amendments) applies.ISO 13076, Paints and varnishes Lighting and procedure for visual assessments of coatings3 General principles of the systemA uniform convention has been adopted for designating the quantity and size of defects and the intensity of changes by means o

41、f ratings on a numerical scale ranging from 0 to 5, 0 denoting no defects or changes, and 5 denoting defects or changes so severe that further discrimination is not reasonable. The other ratings, corresponding to the numbers 1, 2, 3, and 4, are so defined that they give optimum discrimination over t

42、he whole range of the scale.The use of intermediate half-steps is permissible, if specified, to give a more detailed report on the defects or changes observed.NOTE 1 The quantity of small defects scattered over the test area may be assessed by means of a grid method. Details of such a method are des

43、cribed in ISO 10289.NOTE 2 The ISO ranking may be different from the ranking schemes used in other standards, e.g. the rusting evaluation ASTM D 610, where ranking is from 10 to 1, with 10 meaning no change and 1 meaning greatest change.In addition to the ratings, the approximate dimensions of the a

44、rea concerned shall be given, or the proportion of the area concerned compared with the total area, expressed as a percentage.5EN ISO 4628-1:2016 (E) DIN EN ISO 4628-1:2016-07 4 Assessment of defects and of intensity of changes4.1 GeneralCarry out the assessment under good illumination, as specified

45、 in ISO 13076.Carry out a first assessment of defect visually, without any magnification.4.2 Designation of quantity of defectsThe quantity of defects in the form of discontinuities or other local imperfections in the coating, scattered over the test area in a more or less even pattern, is designate

46、d in accordance with Table 1. The ratings shall be expressed as a whole number unless otherwise specified (see Clause 3).Table 1 Rating scheme for designating the quantity of defectsRating Quantity of defect0 none, i.e. no detectable defects1 very few, i.e. small, barely significant number of defect

47、s2 few, i.e. small but significant number of defects3 moderate number of defects4 considerable number of defects5 dense pattern of defects4.3 Designation of size of defectsThe average size (order of magnitude) of defects is designated, if required and meaningful, in accordance with Table 2.Table 2 R

48、ating scheme for designating the size of defectsRating Size of defecta0 not visible under 10 magnification1 only visible under magnification up to 102 just visible with normal corrected vision (up to 0,2 mm)b3 clearly visible with normal corrected vision (larger than 0,2 mm up to 0,5 mm)4 larger tha

49、n 0,5 mm up to 5 mm5 larger than 5 mmaUnless otherwise specified in subsequent parts of ISO 4628.bTypically, defects larger than 0,2 mm are visible with normal corrected vision.Where a test area exhibits defects of various sizes, the size of the largest defects which are numerous enough to be typical of the test area shall be quoted as the size rating. The size of the defect shall be reported using the designation Sn, where S indicates the size and n