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1、BSEN12952-2-2001水管锅炉和辅助设备.第2部分锅炉和附件的压力零件用材料BRITISHSTANDARDBSEN<12952-2:200<1Water-tubeboilersandauxiliaryinstallations—Part2:MaterialsforpressurepartsofboilersandaccessoriesTheEuropeanStandardEN<12952-2:200<1hasthestatusofaBritishStandardICS27.040;77.<140.0<1NOCOPYINGWITHOUTBSIPERMISSIONEXCEPT
2、ASPERMITTEDBYCOPYRIGHTLAWLicensedCopy:InstituteOfTechnologyTallaght,InstituteofTechnology,ThuAug23<10:<13:<17GMT+00:002007,UncontrolledCopy,(c)BSIBSEN<12952-2:200<1ThisBritishStandard,havingbeenpreparedunderthedirectionoftheEngineeringSectorPolicyandStrategyCommittee,waspublishedundertheauthor
3、ityoftheStandardsPolicyandStrategyCommitteeon29April2002??BSI29April2002ISBN0580373<126NationalforewordThisBritishStandardistheofficialEnglishlanguageversionofEN<12952-2:200<1.ItpartiallysupersedesBS<1<1<13:<1999whichwillbewithdrawnwhenParts<1,2,3,5,6,7,<10and<1<1areallpublished.TheUKparticipa
4、tioninitspreparationwasentrustedtoTechnicalCommitteePVE/2,Water-tubeboilers,whichhastheresponsibilityto:Alistoforganizationsrepresentedonthiscommitteecanbeobtainedonrequesttoitssecretary.AdditionalinformationTheUnitedKingdomvotedagainsttheacceptanceofthisEuropeanStandardattheFormalVotestage.Th
5、eprincipalUKobjectionswereasfollows:a)ThereisnoreferenceintheENforewordtoCR<12952-<17,Water-tubeboilersandauxiliaryinstallations—Part<17:Guidelinesfortheinvolvementofaninspectionbodyindependentofthemanufacturer.b)CEN/TC269passedaresolutionthatParts<1,2,3,5,6and7bepublishedasapackagenecessaryfo
6、rthedesign,constructionandsafetyofwater-tubeboilersbutnomentionofthisisgivenintheENforeword.c)Clause4givesrequirementsformaterialsforpressurepartsofboilersandaccessories.4.<1.<1failstoruleouttheuseofrimmingsteelsandsemi-killedsteels,eventhoughthereisarequirementin4.2.2whichstatesthatrimmingste
7、elsandsemi-killedsteelsshallnotbeused.d)4.<1.<1.requiresthatmaterialforpressurepartsofboilersandaccessoriescoveredbyharmonizedEuropeanmaterialstandardsshallbeorderedanddeliveredinaccordancewithAnnexAandtherelevantEuropeanStandards.Howev
