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1、BRITISHSTANDARDBSEN12952-2:2001Water-tubeboilersandauxiliaryinstallations—Part2:MaterialsforpressurepartsofboilersandaccessoriesTheEuropeanStandardEN12952-2:2001hasthestatusofaBritishStandardICS27.040;77.140.01LicensedCopy:InstituteOfTechnologyTallaght,Insti
2、tuteofTechnology,ThuAug2310:13:17GMT+00:002007,UncontrolledCopy,(c)BSINOCOPYINGWITHOUTBSIPERMISSIONEXCEPTASPERMITTEDBYCOPYRIGHTLAWBSEN12952-2:2001NationalforewordThisBritishStandardistheofficialEnglishlanguageversionofEN12952-2:2001.ItpartiallysupersedesBS11
3、13:1999whichwillbewithdrawnwhenParts1,2,3,5,6,7,10and11areallpublished.TheUKparticipationinitspreparationwasentrustedtoTechnicalCommitteePVE/2,Water-tubeboilers,whichhastheresponsibilityto:—aidenquirerstounderstandthetext;—presenttotheresponsibleEuropeancomm
4、itteeanyenquiriesontheinterpretation,orproposalsforchange,andkeeptheUKinterestsinformed;—monitorrelatedinternationalandEuropeandevelopmentsandpromulgatethemintheUK.Alistoforganizationsrepresentedonthiscommitteecanbeobtainedonrequesttoitssecretary.Additionali
5、nformationTheUnitedKingdomvotedagainsttheacceptanceofthisEuropeanStandardattheFormalVotestage.TheprincipalUKobjectionswereasfollows:a)ThereisnoreferenceintheENforewordtoCR12952-17,Water-tubeboilersandauxiliaryinstallations—Part17:Guidelinesfortheinvolvemento
6、faninspectionbodyindependentofthemanufacturer.b)CEN/TC269passedaresolutionthatParts1,2,3,5,6and7bepublishedasapackagenecessaryforthedesign,constructionandsafetyofwater-tubeboilersbutnomentionofthisisgivenintheENforeword.c)Clause4givesrequirementsformaterials
7、forpressurepartsofboilersandaccessories.4.1.1failstoruleouttheuseofrimmingsteelsandsemi-killedsteels,eventhoughthereisarequirementin4.2.2whichstatesthatrimmingsteelsandsemi-killedsteelsshallnotbeused.d)4.1.1.requiresthatmaterialforpressurepartsofboilersandac
8、cessoriescoveredbyharmonizedEuropeanmaterialstandardsshallbeorderedanddeliveredinaccordancewithAnnexAandtherelevantEuropeanStandards.However,TableA.1ofAnnexAdoesnotincludestainlesssteeltubes,cas
