1、BRITISH STANDARDBS EN ISO 15695:2001Vitreous and porcelain enamels Determination of scratch resistance of enamel finishesThe European Standard EN ISO 15695:2001 has the status of a British StandardICS 25.220.50NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS EN ISO 15695:2001
2、This British Standard, having been prepared under the direction of the Sector Policy and Strategy Committee for Materials and Chemicals, was published under the authority of the Standards Policy and Strategy Committee on 5 September 2001 BSI 5 September 2001ISBN 0 580 38136 6National forewordThis Br
3、itish Standard is the official English language version of EN ISO 15695:2001. It is identical with ISO 15695:2000.The UK participation in its preparation was entrusted to Technical Committee STI/36, Vitreous enamel coatings, which has the responsibility to: A list of organizations represented on thi
4、s committee can be obtained on request to its secretary.Cross-referencesThe British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or
5、by using the “Find” facility of the BSI Standards Electronic Catalogue.A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application.Compliance with a British Standard does not of itself confer immu
6、nity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them
7、 in the UK.Summary of pagesThis document comprises a front cover, an inside front cover, the EN ISO title page, the EN ISO foreword page, the ISO title page, pages ii and iii, a blank page, pages 1 to 5 and a back cover.The BSI copyright date displayed in this document indicates when the document wa
8、s last issued.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 15695August 2001ICS 25.220.50English versionVitreous and porcelain enamels - Determination of scracthresistance of enamel finishes (ISO 15695:2000, includingTechnical Corrigen
9、dum 1:2000)Emaux vitrifis - Dtermination de la rsistance la rayuredes surfaces mailles (ISO 15695:2000, RectificatifTechnique 1:2000 inclus)Emails und Emaillierungen - Bestimmung derRitzbestndigkeit von emaillierten Gegenstnden (ISO15695:2000, einschlielich Technisches Corrigendum1:2000)This Europea
10、n Standard was approved by CEN on 15 June 2001.CEN members are bound to comply 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 concernin
11、g such nationalstandards may be obtained on application to the 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 translationunder the responsibility of a CEN member into its own language
12、and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerlan
13、d and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2001 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 15
14、695:2001 EI NESO 51:5962001 (E)2ForewordThe text of the International Standard from Technical Committee ISO/TC 107 “Metallic andother inorganic coatings“ of the International Organization for Standardization (ISO) has beentaken over as an European Standard by Technical Committee CEN/TC 262 “Metallic
15、 andother inorganic coatings“, the secretariat of which is held by BSI.This European Standard shall be given the status of a national standard, either by publicationof an identical text or by endorsement, at the latest by February 2002, and conflicting nationalstandards shall be withdrawn at the lat
16、est by February 2002.According to the CEN/CENELEC Internal Regulations, the national standards organizations ofthe following countries are bound to implement this European Standard: Austria, Belgium,Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy,Luxembourg, Nether
17、lands, Norway, Portugal, Spain, Sweden, Switzerland and the UnitedKingdom.Endorsement noticeThe text of the International Standard ISO 15695:2000 has been approved by CEN as aEuropean Standard without any modification.EN ISO 15695:20011002 rebmetpeS 4 ISB Reference numberISO 15695:2000(E)OSI 0002INT
18、ERNATIONALSTANDARDISO15695First edition2000-05-15Vitreous and porcelain enamels Determination of scratch resistance ofenamel finishesmaux vitrifis Dtermination de la rsistance la rayure des surfacesmaillesEN ISO 15695:20011002 rebmetpeS 4 ISB ISO 59651:(0002)EDPF dlcsiremiaihTs PDF file mya ctnoain
19、emdeddeb tyfepcaes. In acccnadroe with Aebods licnesign lopic,y this file may be pirntde ro ivwede tub slahl toneb ideted lnuess teh tyfepacse which aer emdeddeb era licnesed to dna intslaled on teh computre freporming teh idetign. In wodlnidaogn thisf,eli trapies accept tniereh teh sersnoptilibiy o
20、f ton nifrgnigni Asebod licsnegni ilopcy. ehT ISO tneClar Secteraairt accepts no lilibaity ni this.aeraAebod is a tedarmakr fo Aebod Stsyems Icntaropro.deteDails fo the sfotwera pcudorts sude to crtaee tihs PFD file can be fdnuo in the Glarene Info leratiev to the fil;e the Pc-FDaertion arapmtereswe
21、re tpoimizde for pirtning. Evyre cera sah neeb taken to enseru taht teh file is suitlbae fro sue by ISO memreb idob.se In teh lnuikley etnevttah a plborem leratign to it is f,dnuo lpsaee ifnrom teh tneClar Sceterairat at the sserdda givne lebwo.poCythgir ecitonThsi OSI codmutne si a Draft retnInitaa
22、nol Snatradd dna si copyri-thgprotectde by OSI. xEctpe sa repmidettrednu the ppacilable laws fo eht users cuortny, neireht thsi ISO draft nor any xertcat from it may eb rerpdocu,destrode in a retrieval systme ro rtsnamidett in any form ro by nay msnae, electrcino, ohpcotopyi,gn recording orrehtosiwe
23、, whtituo rproi wriettn repmissino ebnig scerude.uqeRsest for repmissnoi to rrpedocue sohdlu be rddasesed to etireh ISO at teh rddases lebow ro ISOs memrebdoby in the counrty of teh reqseuret.OSI cpoyrgith foficesaCe soptael 65 Gb7 -HC2111 Geenav 02Tel. +42172490111Fax + 14 22 374 10 79E-mail ocypgi
24、rhti.oschWeb www.isoc.hrpeRdocuoitn may be subject ot royatly paymstne or a cilsnegni rgaeem.tneoiVltaros may be rpsocetu.deii ISO 0002 All rights reservedEN ISO 15695:20011002 rebmetpeS 4 ISB ISO 59651:(0002)E ISO 2000 All rights seredevr iiiForewordISO (the International Organization for Standardi
25、zation) is a worldwide federation of national standards bodies (ISOmember bodies). The work of preparing International Standards is normally carried out through ISO technicalcommittees. Each member body interested in a subject for which a technical committee has been established hasthe right to be r
26、epresented on that committee. International organizations, governmental and non-governmental, inliaison with ISO, also take part in the work. ISO collaborates closely with the International ElectrotechnicalCommission (IEC) on all matters of electrotechnical standardization.International Standards ar
27、e 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.Publication as an International Standard requires approval by at least 75 % of the member bodies casting a v
28、ote.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 such patent rights.International Standard ISO 15695 was prepared by Technical Committee ISO/TC 107, Meta
29、llic and other inorganiccoatings.EN ISO 15695:20011002 rebmetpeS 4 ISB EN ISO 15695:20011002 rebmetpeS 4 ISB INTENRATIONAL TSANDADR ISO 59651:(0002)E ISO 2000 All rights seredevr 1Vitreous and porcelain enamels Determination of scratchresistance of enamel finishes1 ScopeThis International Standard s
30、pecifies a test method for the determination of the scratch resistance of enamelfinishes. The method is based on ISO 1518:1992, Paints and varnishes Scratch test, but is performed atsignificantly higher forces.The value of the scratch resistance that is obtained is a measure of the durability of por
31、celain enamel finishes whenscratched by sharp objects under high forces. The value should not be confused with scratch hardness, a quantitythat is measured by the procedure described in EN 101:1991, Ceramic tiles Determination of scratch hardnessof surface according to Mohs.2 Normative referencesThe
32、 following normative documents contain provisions which, through reference in 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 Internati
33、onal Standard are encouraged toinvestigate the possibility of applying the most 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 Internation
34、al Standards.ISO 2723:1995, Vitreous and porcelain enamels for sheet steel Production of specimens for testing.ISO 2724:1973, Vitreous and porcelain enamels for cast iron Production of specimens for testing.ISO 7724-3:1), Paints and varnishes Colorimetry Part 3: Calculation of colour differences by
35、CIELAB.ISO 13804:1999, Vitreous and porcelain enamels for aluminium Production of specimens for testing.3 Terms and definitionsFor the purposes of this International Standard, the following term and definition apply.3.1scratch resistancehighest force, in newtons, at which the scratch retains the col
36、our of the felt pen for each individual colour (red,green, blue and black) over less than 50 % of the tested length4PrincipleBy means of an apparatus with a diamond indenter, a test specimen is submitted to a stepwise insertion force. Thescratches obtained are subsequently coloured using felt pens w
37、ith erasable ink.1) To be published. (Revision of ISO 7724-3:1984)1EN ISO 15695:20011002 rebmetpeS 4 ISB ISO 59651:(0002)E2 ISO 2000 All rights reservedThe erasability of these colourations is a measure of the resistance to scratching of the enamelled product.The trace that may be left by the diamon
38、d after testing does not constitute a failure for the purpose of thisassessment.5 Apparatus5.1 Turntable and indenterThe apparatus shown in Figure 1 consists of a turntable with a radius of at least 50 mm and a clamping device.When started, the turntable shall be able to make only one complete revol
39、ution in 10 s to 13 s, and then stopautomatically.The equipment comprises a diamond indenter with a cone angle of 90Gb1 1 and a curvature of radius of90 G6dm Gb1 3 G6dm held in a holder of Fe 360 (see Figure 2). The crystallographic main axis G3c001G3e of the diamond andthe longitudinal axis of the
40、holder shall be parallel to each other. The diamond indenter shall be able to provideforces from 0 N to 10 N with a precision of 0,1 N, by means of an arm with suitable weights.5.2 Felt pensRed, green, blue and black felt pens of identical manufacture are required. After each colour has been applied
41、 tothe test specimen, allowed to dry and wiped with a cotton cloth, the surface discolouration shall bedE* = 10 maximum, in accordance with ISO 7724-3.Key1 Indenter2 TurntableFigure 1 Apparatus2EN ISO 15695:20011002 rebmetpeS 4 ISB ISO 59651:(0002)E ISO 2000 All rights reserved 3Dimensions in millim
42、etres unless stated otherwiseKey1Diamond2 Holder3 Relative direction of the movement of the diamond with respect to the test specimenFigure 2 Indenter6 Preparation of test specimensTest specimens shall be prepared in accordance with ISO 2723 for steel, ISO 2724 for cast iron or ISO 13804 foraluminiu
43、m. The coating thickness of the enamel shall be at least 50 G6dm. The test specimen shall be cleaned withalcohol and dried with a cotton cloth.7 ProcedureThe test procedure consists of the following steps.a) Attach the test specimen to the turntable.b) Adjust the radius of the circle so that all cir
44、cles can be made between 25 mm and 45 mm.c) Adjust the apparatus so that the diamond indenter forms a 90 angle with the test specimen.d) Set the initial force to 10 N.e) Create a circular scratch by turning the test specimen 360 at a force of 10 N.3EN ISO 15695:20011002 rebmetpeS 4 ISB ISO 59651:(00
45、02)E4 ISO 0002 All rights reservedf) Adjust the force and the radius. Repeat the procedure with the next lower force using increments of 1 N. Thegreatest force shall always be used for the outer circle. Adjust the radius by an increment of 1 mm or 2 mm foreach value of force between 0 N and 10 N (se
46、e Figure 3).g) Colour the circles with felt pens (5.2) as shown in Figure 3.h) Wait at least 1 min for the ink to dry.i) Wipe each coloured area with a separate dry clean cotton cloth.Dimensions in millimetresKey1Black2Red3Blue4 GreenFigure3Exampleofatypicalscratchandcolouringpattern8 Determination
47、of the scratch resistanceInspectthetestspecimenvisuallyatadistanceof25mmundertypicallaboratoryilluminationconditions(500lxto800lx).Recordthehighestforceatwhichthescratchretainsthecolourofthefeltpenforlessthan50%ofthetested length. This force value represents the measure of the scratch resistance of
48、the enamel coating.If there is any doubt about the estimated 50 % value, the determination shall be repeated by another person.ISO 59651:(0002)E4 ISO 2000 All rights reservedf) jdAust hte froce dna eht ridasu. Retaep eht proc dure iwht eht xent lowre force usign cnirmestne of 1 .N Thergsetaet froce
49、shall always be used fro eht tuore cir .el Ajdsut the radisu by na cnirmetne fo 1 mm or 2 mm rofcaeh vlaeu fo force neewteb 0 N dna 01 N (see Firuge 3).)g oloCru hte criclse htiw fetl epsn (5)2. as shown in Frugie 3.)h Wati ta saelt 1 min fro hte ikn ot rdy.)i Wiep caeh cruoloed raea wiht a srapeate dry clnae onott ctolh.Dinemsoisn ni limmilerteseKyB1lackR2edB3lue4 GneerrugiFe 3 Examelp of a tycipal scratch and cuolorign apettrn8 Dtetanimreino fo the starchc risetsecnasnIcept the sett spcemine
