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1、BRITISHSTANDARDBSEN12284:2003Refrigeratingsystemsandheatpumps—Valves—Requirements,testingandmarkingTheEuropeanStandardEN12284:2003hasthestatusofaBritishStandardICS23.060.20LicensedCopy:InstituteOfTechnologyTallaght,InstituteofTechnology,SatJun3003:25:00GMT+00
2、:002007,UncontrolledCopy,(c)BSI
BSEN12284:2003NationalforewordThisBritishStandardistheofficialEnglishlanguageversionofEN12284:2003.TheUKparticipationinitspreparationwasentrustedtoTechnicalCommitteeR
3、HE/18,Refrigerationsafety,whichhastheresponsibilityto:—aidenquirerstounderstandthetext;—presenttotheresponsibleinternational/Europeancommitteeanyenquiriesontheinterpretation,orproposalsforchange,andkeeptheUKinterestsinformed;—monitorrelatedinternationalandEur
4、opeandevelopmentsandpromulgatethemintheUK.Alistoforganizationsrepresentedonthiscommitteecanbeobtainedonrequesttoitssecretary.Cross-referencesTheBritishStandardswhichimplementinternationalorEuropeanpublicationsreferredtointhisdocumentmaybefoundintheBSICatalogu
5、eunderthesectionentitled“InternationalStandardsCorrespondenceIndex”,orbyusingthe“Search”facilityoftheBSIElectronicCatalogueorofBritishStandardsOnline.Thispublicationdoesnotpurporttoincludeallthenecessaryprovisionsofacontract.Usersareresponsibleforitscorrectap
6、plication.CompliancewithaBritishStandarddoesnotofitselfconferimmunityfromlegalobligations.ThisBritishStandard,wasSummaryofpagespublishedundertheauthorityoftheStandardsPolicyandThisdocumentcomprisesafrontcover,aninsidefrontcover,theENtitlepage,StrategyCommitte
7、eonpages2to63andabackcover.26September2003TheBSIcopyrightnoticedisplayedinthisdocumentindicateswhenthedocumentwaslastissued.AmendmentsissuedsincepublicationAmd.No.DateComments©BSI26September2003ISBN0580426998LicensedCopy:InstituteOfTechnologyTallaght,Institut
8、eofTechnology,SatJun3003:25:00GMT+00:002007,UncontrolledCopy,(c)BSIEUROPEANSTANDARDEN12284NORMEEUROPÉENNEEUROPÄISCHENORMSeptember2003ICS23.060.20EnglishversionRefrigeratingsystemsandheatp
