ISO INTERNATIONAL STANDARD 17683 Firstedition 2014-02-01 Ships and marine technology - Ceramic weld backing for marine use Navires et technologiemaritime-Soutien de soudures en ceramique Reference number IS0 17683:2014(E) ISO @IS02014 IS017683:2014(E) Contents Page Foreword .iv 1 Scope .1 2 .1 Normativereferences 3 Termsand definitions .1 4 Classification .1 5 Dimensions and appearance. .2 5.1 General. .2 5.2 Dimensions. .2 5.3 Appearance .2 Performanceandtest .2 6 Moistureabsorptionrate .2 6.1 6.2 Refractoriness. .3 6.3 Chemical composition 3 6.4 Adhesive aluminiumfoil tape .3 Metal cases .3 6.5 7 Type approval test. .4 7.1 General. 4 7.2 Test items .4 7.3 Acceptance criteria .4 8 Acceptancetest. .4 8.1 Test items. .4 8.2 Acceptance criteria .4 Marking, packaging, and storage. 9 .5 9.1 Marking 55 9.2 Packaging 9.3 Storage 5 IS0 2014 - All rights reserved iii IS017683:2014(E) Foreword Iso (theInternationalOrganizationforStandardization)isa worldwidefederationofnational standards bodies (iso memberbodies).Thework of preparing International Standards is normally carried out through Iso technical committees.Eachmember body interested in a subject for which a technical committeehasbeen established hastheright toberepresented onthatcommittee.International organizations,governmental and non-governmental,in liaison withIso,also takepart inthework. ISOcollaborates closelywiththeInternationalElectrotechnical Commission(IEC)on all matters of electrotechnicalstandardization. Theproceduresused to develop this documentand those intendedfor its furthermaintenanceare described in theISo/IEc Directives, Part 1.In particular the differentapproval criteria neededforthe differenttypes of isodocuments shouldbenoted.Thisdocument wasdrafted inaccordancewiththe editorial rules ofthe ISo/IEc Directives, Part 2 (seewww.iso.org/directives). Attentionisdrawntothepossibilitythat someoftheelements ofthisdocumentmaybethesubjectof patent rights.Iso shall not beheld responsible for identifying any or all suchpatent rights.Details of anypatent rights identified during thedevelopment of thedocument willbe in the Introduction and/or onthe Iso listofpatentdeclarations received (seewww.iso.org/patents). Any trade name used in this document is information given forthe convenience of users and does not constitute an endorsement. Foranexplanationon themeaningof Iso specific termsand expressionsrelatedto conformity assessment,aswellasinformationaboutIsO'sadherencetotheWTOprinciplesintheTechnical Barriers toTrade(TBT)seethefollowingURL:Foreword-Supplementaryinformation The committee responsible for this document is ISo/TC 8, Ships and marine technology, Subcommittee SC 8, Ship design iv IS0 2014 - All rights reserved IS017683:2014(E) INTERNATIONALSTANDARD ShipsandmarinetechnologyCeramicweldbackingfor marine use 1 Scope This International Standard specifiestheclassification,dimension andappearance,performance,and testmethodsforceramicweld backing.Italsospecifiesmarking,packaging,andstorage. This International Standard is applicable to designing, manufacturing, testing, and accepting ceramic weld backing that aretobe used in the double side form with single side weld,such as arc welding,gas welding,vertical gas welding,and submerged arc welding,and the shaping structural steel welding end forcarbonsteel,stainlesssteel,aluminiumalloy,copperalloy,andsoon. 2Normativereferences Thefollowing documents, in whole or in part, are normativelyreferenced in this document and are indispensable for its application.For dated references, only the edition cited applies.For undated references,thelatestedition ofthereferenced document (includinganyamendments)applies. Iso29862,Selfadhesivetapes-Determinationofpeeladhesionproperties 3 Termsanddefinitions Forthepurposes of this document,thefollowingterms and definitions apply 3.1 ceramic weld backing block ceramicblock with certaingeometricshapemanufactured by inorganicmaterial 3.2 moistureabsorptionrate Wa ratio of the weight ofwatervap