DIN EN ISO 20567-1-2017 Paints and varnishes - Determination of stone-chip resistance of coatings - Part 1 Multi-impact testing (ISO 20567-1 2017) German version EN ISO 20567-1 201.pdf

1、July 2017 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!%guV“2688251www.din.deDIN EN

2、 ISO 20567-1Paints and varnishes Determination of stonechip resistance of coatings Part 1: Multiimpact testing (ISO 205671:2017);English version EN ISO 205671:2017,English translation of DIN EN ISO 20567-1:2017-07Beschichtungsstoffe Prfung der Steinschlagfestigkeit von Beschichtungen Teil 1: Multisc

3、hlagprfung (ISO 205671:2017);Englische Fassung EN ISO 205671:2017,Englische bersetzung von DIN EN ISO 20567-1:2017-07Peintures et vernis Dtermination de la rsistance des revtements aux impacts de cailloux Partie 1: Essais de chocs multiples (ISO 205671:2017);Version anglaise EN ISO 205671:2017,Tradu

4、ction anglaise de DIN EN ISO 20567-1:2017-07SupersedesDIN EN ISO 205671:200704www.beuth.deDocument comprises 21 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.06.17 DIN EN ISO 20567-1:2017-07 2 A comma is used as the decimal m

5、arker. National foreword This document (EN ISO 20567:-1) has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes”, Subcommittee SC 9 “General test methods for paints and varnishes” (Secretariat: BSI, United Kingdom), in collaboration with Technical Committee CEN/TC 139 “Paints and v

6、arnishes” (Secretariat: DIN, Germany), The responsible German body involved in its preparation was DIN-Normenausschuss Beschichtungsstoffe und Beschichtungen (DIN Standards Committee Coatings and Coating Materials), Working Committee NA 002-00-07-09 UA “Automotive coatings”. Explanations on Clause 9

7、, Evaluation Damages to be evaluated include any loss of adhesion or chipping of any coating layer. In the case of plastic coatings, however, layer slippage often occurs rather than a loss in adhesion, resulting in an exposure of the layers underneath. This should also be considered as damage and in

8、cluded in the evaluation. Scratches or marks caused by the grit should not be included in the damaged area. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 565 DIN ISO 565 ISO 1514 DIN EN ISO 1514 ISO 2808 DIN EN ISO 2808 ISO 3270 DIN E

9、N 23270 ISO 11124-2 DIN EN ISO 11124-2 ISO 11125-2 DIN EN ISO 11125-2 ISO 21227-2:2006 DIN EN ISO 21227-2:2006-11 Amendments This standard differs from DIN EN ISO 20567-1:2007-04 as follows: a) a table with the particle size distribution of the grit material has been added; b) a note concerning the

10、use of actual pressure gauges has been added to Figure 2; c) the clause on sampling has been deleted; d) the description of suitable methods for the removal of loose paint has been transferred to an informative annex as examples and, for the method using adhesive tape, the adhesive strength of the t

11、ape is no longer specified; e) the text has been editorially revised and normative references have been updated. Previous editions DIN 55996-1: 2001-04 DIN EN 55996-1 Corrigendum 1: 2003-10 DIN EN ISO 20567-1: 2007-01, 2007-04 DIN EN ISO 20567-1:2017-07 3 National Annex NA (informative) Bibliography

12、 DIN EN 23270, Paints, varnishes and their raw materials Temperatures and humidities for conditioning and testing DIN EN ISO 1514, Paints and varnishes Standard panels for testing DIN EN ISO 2808, Paints and varnishes Determination of film thickness DIN EN ISO 11124-2, Preparation of steel substrate

13、s before application of paints and related products Specifications for metallic blast-cleaning abrasives Part 2: Chilled-iron grit DIN EN ISO 11125-2, Preparation of steel substrates before application of paints and related products Test methods for metallic blast-cleaning abrasives Part 2: Determin

14、ation of particle size distribution DIN EN ISO 21227-2:2006-11, Paints and varnishes Evaluation of defects on coated surfaces using optical imaging Part 2: Evaluation procedure for multi-impact stone-chipping test (ISO 21227-2:2006) DIN ISO 565, Test sieves Metal wire cloth, perforated metal plate a

15、nd electroformed sheet Nominal sizes of openings DIN EN ISO 20567-1:2017-07 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 20567-1 February 2017 ICS 87.040 Supersedes EN ISO 20567-1:2006 English Version Paints and varnishes Determination of stone-chip res

16、istance of coatings Part 1: Multi-impact testing (ISO 20567-1:2017) Peintures et vernis Dtermination de la rsistance des revtements aux impacts de cailloux Partie 1: Essais de chocs multiples (ISO 20567-1:2017) Beschichtungsstoffe Prfung der Steinschlagfestigkeit von Beschichtungen Teil 1: Multischl

17、agprfung (ISO 20567-1:2017) This European Standard was approved by CEN on 5 November 2016. 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 l

18、ists 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 Standard exists in three official versions (English, French, German). A version in any other language made by translation und

19、er 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 national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former

20、Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION C

21、OMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 20567-1:2017 E EN ISO 20567-1:2017 (E) 2 Content

22、s Page Foreword 4 Introduction 5 1 Scope 6 2 Normative references 6 3 Terms and definitions . 6 4 Principle . 6 5 Apparatus . 7 6 Materials . 8 7 Test panels . 9 7.1 Substrate 9 7.2 Preparation and coating . 9 7.3 Thickness of coating . 9 8 Procedure. 9 8.1 Conditioning of the test panels . 9 8.2 Te

23、st conditions . 9 8.3 Projection of grit 9 9 Evaluation . 10 10 Precision 10 10.1 Repeatability limit, r . 10 10.2 Reproducibility limit, R . 10 11 Test report 11 Annex A (informative) Examples of suitable procedures for removing loose paint . 15 Annex B (informative) Recommended procedure for calib

24、ration of test apparatus (examination of the damaged area 16 DIN EN ISO 20567-1:2017-07 European foreword . 3 EN ISO 20567-1:2017 (E) 3 European foreword This document (EN ISO 20567-1:2017) has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes” in collaboration with Technical Comm

25、ittee 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 identical text or by endorsement, at the latest by August 2017 and conflicting national standards shall be withdrawn a

26、t the latest by August 2017. 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 20567-1:2006. According t

27、o the CEN-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, Greec

28、e, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 20567-1:2017 has been approved by CEN as EN ISO 20567-1

29、:2017 without any modification. DIN EN ISO 20567-1:2017-07 ForewordISO (the International Organization 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 committe

30、es. 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 in the work. ISO collaborates closely with the Inte

31、rnational 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 the different approval criteria needed for the dif

32、ferent 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 document may be the subject of patent rights. ISO sha

33、ll 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.org/patents).Any trade name used in this document i

34、s 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 World Trade Organization (WTO) principles in the Techni

35、cal Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.The committee responsible for this document is ISO/TC 35, Paints and varnishes, Subcommittee SC 9, General test methods for paints and varnishes.This second edition cancels and replaces the first edition (ISO 20567-1:20

36、05), which has been technically revised with the following main changes: a table with the particle size distribution of the grit material has been added; a note concerning the use of actual pressure gages has been added to Figure 2; the clause on sampling has been deleted; the description of suitabl

37、e methods for removal of loose paint have been transferred to an informative annex as examples and, for the method using adhesive tape, the adhesive strength of the tape is no longer specified; this document is revised editorially and the normative references have been updated.A list of all parts in

38、 the ISO 20567 series can be found on the ISO website.4 EN ISO 20567-1:2017 (E) DIN EN ISO 20567-1:2017-07 IntroductionIn the automobile industry, multi-layer paint coatings are applied to car bodies for protection. Grit, road-metal and other materials can damage these coatings in such a way that in

39、dividual layers come off or the whole coating delaminates from the substrate.Stone chipping can be simulated by means of single- and/or multi-impact tests. ISO 20567-1 describes multi-impact testing; ISO 20567-2 and ISO 20567-3 describe single-impact tests.NOTE A recommended procedure for calibratio

40、n of the apparatus is given in Annex B. Note that this annex is informative because the method described in it is not the only one suitable for checking whether a uniform impact pattern is produced.5 EN ISO 20567-1:2017 (E) DIN EN ISO 20567-1:2017-07 1 ScopeThis document specifies three methods for

41、the evaluation of the resistance of automobile finishes and other coatings to chilled-iron grit projected onto the surface under test to simulate the impact of small stones.2 Normative referencesThe following documents are referred to in the text in such a way that some or all of their content const

42、itutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 565, Test sieves Metal wire cloth, perforated metal plate and electroformed sheet Nominal sizes of

43、openingsISO 1514, Paints and varnishes Standard panels for testingISO 2808, Paints and varnishes Determination of film thicknessISO 3270, Paints and varnishes and their raw materials Temperatures and humidities for conditioning and testingISO 11124-2, Preparation of steel substrates before applicati

44、on of paints and related products Specifications for metallic blast-cleaning abrasives Part 2: Chilled-iron gritISO 11125-2, Preparation of steel substrates before application of paints and related products Test methods for metallic blast-cleaning abrasives Part 2: Determination of particle size dis

45、tributionISO 21227-2:2006, Paints and varnishes Evaluation of defects on coated surfaces using optical imaging Part 2: Evaluation procedure for multi-impact stone-chipping test3 Terms and definitionsNo terms and definitions are listed in this document.ISO and IEC maintain terminological databases fo

46、r use in standardization at the following addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.org/obp4 PrincipleThe stone-chip resistance of the coating under test is checked by projecting a large number of small sharp-edged

47、bodies onto it in a short period of time. The material used in the test is chilled-iron grit, which is projected onto the coating at a defined angle using compressed air. The extent of the damage 6 EN ISO 20567-1:2017 (E) DIN EN ISO 20567-1:2017-07 caused will depend not only on the angle, but also

48、on the pressure level, the mass of the projectiles, the duration of the bombardment and the design of the test apparatus.Loose fragments of coating material are removed.The extent of the damage is determined by comparison with pictorial reference standards.5 ApparatusOrdinary laboratory apparatus, t

49、ogether with the following.5.1 Multi-impact tester.Figure 1 and Figure 2 show the test apparatus and its dimensions.The vibrating conveyor carries the grit from the funnel into the air blast in front of the grit-accelerating nozzle. It shall be designed so that the grit feed speed can be varied. The apparatus shall be capable of projecting 500 g of grit during a period of 10 s. The pressure chamber