BS EN ISO 15710-2002 Paints and varnishes - Corrosion testing by alternate immersion in and removal from a buffered sodium chloride solution《涂料和清漆 在缓冲氯化钠溶液中交替浸渍的腐蚀测试》.pdf

1、BRITISH STANDARDBS EN ISO 15710:2006Incorporating amendment no. 1 (renumbers BS ISO 15710:2002 as BS EN ISO 15710:2006)Paints and varnishes Corrosion testing by alternate immersion in and removal from a buffered sodium chloride solutionThe European Standard EN ISO 15710:2006 has the status of a Brit

2、ish Standard ICS 87.040g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN ISO 15710:2006This British Standard, having been prepared under the dir

3、ection of the Materials and Chemicals Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 14 October 2002 BSI 2007ISBN 0 580 40549 4National forewordThis British Standard was published by BSI. It is the UK implementation of EN ISO

4、 15710:2006. It is identical with ISO 15710:2002.The UK participation in its preparation was entrusted to Technical Committee STI/10, Test methods for paints.A list of organizations represented on STI/10 can be obtained on request to its secretary.This publication does not purport to include all the

5、 necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments issued since publicationAmd. No. Date Comments16861 28 February 2007 Renumbers BS ISO 15710:2002 as BS EN ISO 15710:2006E

6、UROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 15710June 2006ICS 87.040English VersionPaints and varnishes - Corrosion testing by alternate immersionin and removal from a buffered sodium chloride solution (ISO15710:2002)Peintures et vernis - Essais de corrosion par immersions-mersions alternes

7、 dans une solution tamponne dechlorure de sodium (ISO 15710:2002)Beschichtungsstoffe - Korrosionsprfung durchabwechselndes Eintauchen in eine und Entfernen aus einergepufferte(n) Natriumchloridlsung (ISO 15710:2002)This European Standard was approved by CEN on 19 May 2006.CEN members are bound to co

8、mply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Sec

9、retariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the offic

10、ialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain,

11、Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.

12、Ref. No. EN ISO 15710:2006: EForeword The text of ISO 15710:2002 has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 15710:2006 by Technical Committee CEN/TC 139 “Paints and varnishes“

13、, 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 December 2006, and conflicting national standards shall be withdrawn at the latest by December 2006. Acco

14、rding to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithua

15、nia, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Endorsement notice The text of ISO 15710:2002 has been approved by CEN as EN ISO 15710:2006 without any modifications. EN ISO 15710:2006INTERNATIONALSTANDARDISO1

16、5710First edition2002-10-01Reference numberISO 15710:2002(E)Paints and varnishes Corrosion testing by alternate immersion in and removal from a buffered sodium chloride solutionPeintures et vernis Essais de corrosion par immersions-mersions alternes dans une solution tamponne de chlorure de sodiumEN

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21、SO ta tserdda eheb slow or SIsOmemreb ydob in toc ehtnury fo tr ehtseuqeer.ISO copyrithg fofiectsop esaCael 65 G 1121-HCeneva 02Te.l + 22 14 10 947 11Fax + 14 47 2290 9 74E-liam copyrightsio.chWeb wwwsi.oc.hPrni detni SztiwerldnaiiISO 17512002:0)E( ISO 2002 r llAithgs reservde iiiContents Page1 Scop

22、e . 12 Normative references . 13 Principle 14 Required supplementary information . 15 Initial test solution . 26 Apparatus . 27 Sampling . 28 Test panels . 39 Procedure . 410 Inspection of test panels . 511 Precision . 512 Test report 5AnnexA Required supplementary information 6iiiEN ISO 15710:2006I

23、SO :01751(2002)Evi ISO 2002 Ar llithgr seresvdeForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISOmember bodies). The work of preparing International Standards is normally carried out through ISO technicalcommittees. Each membe

24、r body interested in a subject for which a technical committee has been established hasthe right to be represented on that committee. International organizations, governmental and non-governmental, inliaison with ISO, also take part in the work. ISO collaborates closely with the International Electr

25、otechnicalCommission (IEC) on all matters of electrotechnical standardization.International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.Draft International Standards adopted by the technical committees are circulated to the member bodies for voting.Publ

26、ication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.Attention is drawn to the possibility that some of the elements of this International Standard may be the subject ofpatent rights. ISO shall not be held responsible for identifying any or all

27、such patent rights.International Standard ISO 15710 was prepared by Technical Committee ISO/TC 35, Paints and varnishes,Subcommittee SC 9, General test methods for paints and varnishes.Annex A forms a normative part of this International Standard.ivEN ISO 15710:2006ISO 17512002:0)E( ISO 2002 r llAit

28、hgs reservde vIntroductionCoatings of paints, varnishes and similar materials are exposed to alternating wet and dry (humid) cyclic conditionsusing a specified salt solution in a cabinet in order to simulate, in the laboratory, processes occurring in aggressiveoutdoor conditions. Generally, correlat

29、ions between such outdoor weathering and laboratory testing cannot beexpected because of the large number of factors influencing the breakdown process. Correlation can only beexpected if the effect on the coating of important parameters (e.g. nature of the salt, spectral distribution of theincident

30、radiation in the relevant photochemical region, temperature of the specimen, type and cycle of wetting andrelative humidity) is known. In contrast to outdoor weathering, laboratory testing in a cabinet is performed under areduced number of variables which can be controlled and therefore the effects

31、are more reproducible. The methodmay also give a means of checking that the quality of a paint or paint system is being maintained.The method has been found to be useful in comparing the alternate immersion/emersion salt solution resistance ofdifferent coatings. It is most useful in providing releva

32、nt ratings for a series of coated panels exhibiting significantdifferences in alternate immersion/emersion salt solution resistance.This method is intended principally for testing paints used in aerospace applications. The types of conditionsspecified may occur as an aircraft flies through a variety

33、 of environments including sudden changes in temperatureand pressure. The results of the test specified in this International Standard will give an indication of the ability of apaint system to withstand these corrosive atmospheres.vEN ISO 15710:2006blankANRETNIITOTS LANDNADRA ISO 17512002:0)E( ISO

34、2002 r llAithgs reservde 1Paints and varnishes Corrosion testing by alternate immersion in and removal from a buffered sodium chloride solution1 ScopeThis International Standard describes a test procedure for assessing the protection offered by coatings of paints orvarnishes on aluminium and alumini

35、um alloys against corrosion arising against a scribe mark cut through thecoating, when the coated panel is subjected to a test regime of alternate immersion in and removal from a dilute saltsolution.2 Normative referencesThe following normative documents contain provisions which, through reference i

36、n this text, constitute provisions ofthis International Standard. For dated references, subsequent amendments to, or revisions of, any of thesepublications do not apply. However, parties to agreements based on this International Standard are encouraged toinvestigate the possibility of applying the m

37、ost recent editions of the normative documents indicated below. Forundated references, the latest edition of the normative document referred to applies. Members of ISO and IECmaintain registers of currently valid International Standards.ISO 1513, Paints and varnishes Examination and preparation of s

38、amples for testingISO 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 3696, Water for analytical laboratory use Speci

39、fication and test methodsISO 4628-1, Paints and varnishes Evaluation of degradation of coatings Designation of intensity, quantity andsize of common types of defect Part 1: General introduction and designation systemISO 4628-8, Paints and varnishes Evaluation of degradation of coatings Designation o

40、f intensity, quantity andsize of common types of defect Part 8: Evaluation of corrosion around a scribeISO 15528, Paints, varnishes and raw materials for paints and varnishes Sampling3 PrincipleA coated test panel is scribed in a defined way. The panel is then exposed in a test chamber at , where it

41、 isalternately immersed in salt solution and then removed and exposed at a relative humidity greater than . Theeffects of this test being then evaluated by criteria agreed in advance between the interested parties, these criteriausually being of a subjective nature.4 Required supplementary informati

42、onFor any particular application, the test method specified in this International Standard needs to be completed bysupplementary information. The items of supplementary information are given in annex A.35C80 %1EN ISO 15710:2006ISO :01751(2002)E2 ISO 2002 Ar llithgr seresvde5 Initial test solutionPre

43、pare the initial test solution by dissolving the following salts in water of at least grade 3 purity in accordance withISO 3696, to produce the required concentration given in Table 1.The salts shall be white and shall comply with the purity requirements given in Table 2.The pH of the initial test s

44、olution shall be in the range ( ). The pH determination shall be based onelectrometric measurement at . Any necessary correction shall be made by adding hydrochloric acid or sodiumcarbonate solution (of purity complying with Table 2) of appropriate concentration.6 ApparatusOrdinary laboratory appara

45、tus and glassware, together with the following:6.1 Test cabinet, capable of being maintained at and a relative humidity of unless otherwiseagreed, which will hold the individual salt solution tanks (6.2). The cabinet shall also have provision for hanging thetest panels in a vertical position and rai

46、sing and lowering them automatically so that they will be fully immersed forin the individual salt solution tanks and then removed from the salt solution for , the cycle to be repeated untilthe end of the test period, unless otherwise specified.6.2 Individual salt solution tanks, made of suitable ma

47、terial and capable of holding at least of test solutionper of test panel. When a panel is immersed, it shall be at least from the edge of the container.When calculating the test panel area, the backs of the panels shall also be taken into account.7 SamplingTake a representative sample of the product

48、 to be tested (or of each product in the case of a multi-coat system), asdescribed in ISO 15528.Examine and prepare each sample for testing, as described in ISO 1513.Table 1 Salt solution concentrationSaltConcentrationSodium chloride 30Disodium hydrogen orthophosphate 0,19Boric acid 1,25Table 2 Salt

49、 purityImpurityMaximum mass percentage of impurity (calculated on the dry salt)Total 0,5Iodide 0,1Copper 0,001Nickel 0,001g/l%8 0,225C(35 2)C 80 %2h 2h4mlcm220 mm2EN ISO 15710:2006ISO 17512002:0)E( ISO 2002 r llAithgs reservde 38 Test panels8.1 Material and dimensionsUnless otherwise specified or agreed, the test panels shall be of aluminium complying with ISO 1514, and be ofapproximate minimum dimensions with a small hole at one end. The short dimensionshall be in the direction of rolling (see Figure 1