1、BSI Standards PublicationBS EN ISO 4628-3:2016Paints and varnishes Evaluation of degradation ofcoatings Designation ofquantity and size of defects,and of intensity of uniformchanges in appearancePart 3: Assessment of degree of rustingBS EN ISO 4628-3:2016 BRITISH STANDARDNational forewordThis Britis
2、h Standard is the UK implementation of EN ISO 4628-3:2016. It supersedes BS EN ISO 4628-3:2003 which iswithdrawn.The UK participation in its preparation was entrusted to Technical Committee STI/10, Test methods for paints.A list of organizations represented on this committee can be obtained on reque
3、st to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 86610 4 ICS 87.040 Compliance with a British St
4、andard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 February 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM
5、EN ISO 4628-3 February 2016 ICS 87.040 Supersedes EN ISO 4628-3:2003English 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 3: Assessment of degree of rusting (ISO 4628-3:2016
6、) 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 3: valuation du degr denrouillement (ISO 4628-3:2016) Beschichtungsstoffe - Beurteilung von Beschichtungsschden - Bew
7、ertung 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 Standard was approved by CEN on 19 December 2015. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stip
8、ulate 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
9、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 Centre has the same status as the official versions. CEN members are the
10、 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
11、, 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 an
12、y means reserved worldwide for CEN national Members. Ref. No. EN ISO 4628-3:2016 EBS EN ISO 4628-3:2016EN ISO 4628-3:2016 (E) 3 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
13、/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 identical text or by endorsement, at the latest by August 2016, and conflicting national standards shall be withdrawn at the la
14、test 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 responsible for identifying any or all such patent rights. This document supersedes EN ISO 4628-3:2003. According to the CEN
15、-CENELEC Internal Regulations, the national 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, Hungar
16、y, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, 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 m
17、odification. BS EN ISO 4628-3:2016ISO 4628-3:2016(E)Foreword iv1 Scope . 12 Normative references 13 Terms and definitions . 14 Assessment . 25 Expression of results 26 Test report . 2Annex A (normative) Calibration images 9Annex B (informative) Correlation between the ISO rating system and other sys
18、tems .14Bibliography .15 ISO 2016 All rights reserved iiiContents PageBS EN ISO 4628-3:2016ISO 4628-3:2016(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is n
19、ormally 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-governmental, in liaison with ISO, also take part i
20、n 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 in the ISO/IEC Directives, Part 1. In particular
21、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 the possibility that some of the elements of this doc
22、ument 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 list of patent declarations received (see www.iso.o
23、rg/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 well as information about ISOs adherence to the WTO
24、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 varnishes.This third edition cancels and replaces the
25、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 on the rusted area of the degree of rusting Ri 5 has been added.ISO 4628 consists of the following parts,
26、 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 degree of blistering Part 3: Assessment of deg
27、ree 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 delamination and corrosion around a scribe or other artifi
28、cial defect Part 10: Assessment of degree of filiform corrosioniv ISO 2016 All rights reservedBS EN ISO 4628-3:2016INTERNATIONAL STANDARD ISO 4628-3:2016(E)Paints and varnishes Evaluation of degradation of coatings Designation of quantity and size of defects, and of intensity of uniform changes in a
29、ppearance Part 3: Assessment of degree of rusting1 ScopeThis part of ISO 4628 specifies a method for assessing the degree of rusting 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 diff
30、erent degrees by a combination of rust broken through the coating and visible underrust.NOTE 1 The pictorial standards have been selected from the “European rust scale” published by the European Confederation of Paint, Printing Ink and Artists Colours Manufacturers Associations (CEPE), Brussels. The
31、 correlation between the ISO scale and the “European rust scale” is given in Annex B, Table B.1.NOTE 2 The correlation between the 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 85
32、01-1 (rust grades A, B, C, and D).ISO 4628-1 defines the system used for designating the quantity and size of defects and the 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 age
33、ing 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 edition cited applies. F
34、or undated references, the latest edition of the referenced document (including any amendments) applies.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 Part 1: General introduct
35、ion and designation systemISO 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 rustingRirating characterizing the degree of rust formation (rust broken
36、 through and visible underrust) on a coating ISO 2016 All rights reserved 1BS EN ISO 4628-3:2016ISO 4628-3:2016(E)4 AssessmentAssess the degree of rusting (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 visib
37、le underrust) shown on these standards are as indicated in Table 1.Procedures for assessing invisible underrust, if required, shall be agreed between the interested parties.Where different degrees of rusting occur in different parts of the area being assessed, indicate these degrees of rusting toget
38、her 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 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
39、:2015, Table 2.NOTE The pictorial standards are basically intended for assessing the degree of rusting of coated steel. They can be used for designating 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 rust
40、ing 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 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 ru
41、st 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 rusting
42、 as Ri class as shown in Figure 1 to Figure 5.If applicable, indicate the different degrees of rusting obtained, together with the parts of the test area concerned.If applicable, indicate the degree of rusting Ri together with the numerical rating of the size of the rust spots.For example, if the ru
43、sted area corresponds to Figure 3, Ri 3, and the sizes of the individual rust spots are between 0,5 mm and 5 mm, report the result as rusting; degree of rusting Ri3 (S4).6 Test reportThe test report shall contain at least the following information:a) all details necessary to identify the coating exa
44、mined;2 ISO 2016 All rights reservedBS EN ISO 4628-3:2016ISO 4628-3:2016(E)b) a reference to this part of ISO 4628, i.e. ISO 4628-3;c) the type of surface examined, its size and, if appropriate, its location;d) result of the assessment in accordance with Clause 5;e) an indication of the illumination
45、 under which the assessment was carried out;f) any unusual features (anomalies) observed during the assessment;g) the date of the examination. ISO 2016 All rights reserved 3BS EN ISO 4628-3:2016ISO 4628-3:2016(E)Figure 1 Degree of rusting Ri 14 ISO 2016 All rights reservedBS EN ISO 4628-3:2016ISO 46
46、28-3:2016(E)Figure 2 Degree of rusting Ri 2 ISO 2016 All rights reserved 5BS EN ISO 4628-3:2016ISO 4628-3:2016(E)Figure 3 Degree of rusting Ri 36 ISO 2016 All rights reservedBS EN ISO 4628-3:2016ISO 4628-3:2016(E)Figure 4 Degree of rusting Ri 4 ISO 2016 All rights reserved 7BS EN ISO 4628-3:2016ISO
47、4628-3:2016(E)Figure 5 Degree of rusting Ri 58 ISO 2016 All rights reservedBS EN ISO 4628-3:2016ISO 4628-3:2016(E)Annex A (normative) Calibration imagesIf the assessment is to be done using an optical imaging system, use the images given in Figure A.1 to Figure A.5 to calibrate the imaging system.Fi
48、gure A.1 Degree of rusting Ri 1 ISO 2016 All rights reserved 9BS EN ISO 4628-3:2016ISO 4628-3:2016(E)Figure A.2 Degree of rusting Ri 210 ISO 2016 All rights reservedBS EN ISO 4628-3:2016ISO 4628-3:2016(E)Figure A.3 Degree of rusting Ri 3 ISO 2016 All rights reserved 11BS EN ISO 4628-3:2016ISO 4628-3
49、:2016(E)Figure A.4 Degree of rusting Ri 412 ISO 2016 All rights reservedBS EN ISO 4628-3:2016ISO 4628-3:2016(E)Figure A.5 Degree of rusting Ri 5 ISO 2016 All rights reserved 13BS EN ISO 4628-3:2016ISO 4628-3:2016(E)Annex B (informative) Correlation between the ISO rating system and other systemsTable B.1 Correlation between the ISO rating system and the “European rust scale”ISO degree of rusting scale “European rust scale”Ri 0Ri 1Ri 2Ri 3Ri 4Ri 5Re 0Re 1Re
