副本(1)[www.staffempire.com]-BS 1868-1975(R1990) Steel check valves(flanged and butt-welding ends) for the petroleum,petrochemical and allied industries.pdfVIP免费

BRITISHSTANDARDBS1868:1975Reprinted,incorporatingAmendmentNo.1SpecificationforSteelcheckvalves(flangedandbutt-weldingends)forthepetroleum,petrochemicalandalliedindustriesUDC665.6:621.646.248:669.14COPYRIGHT2003;BritishStandardsInstitutiononERCSpecsandStandardsDocumentprovidedbyIHSLicensee=QatarPetroleum/5943408104,User=,05/05/200301:47:07MDTQuestionsorcommentsaboutthismessage:pleasecalltheDocumentPolicyManagementGroupat1-800-451-1584.--`,`,`````,,,``````,`,`,``,,-`-`,,`,,`,`,,`---BS1868:1975ThisBritishStandard,havingbeenapprovedbythePetroleumEquipmentIndustryStandardsCommittee,waspublishedundertheauthorityoftheExecutiveBoardon28November1975©BSI02-1999Firstpublished,June1952Firstrevision,March1960Secondrevision,November1975ThefollowingBSIreferencesrelatetotheworkonthisstandard:CommitteereferencePEE/1Draftforcomment74/74150DCISBN0580088170Co-operatingorganizationsThePetroleumEquipmentIndustryStandardsCommittee,underwhosesupervisionthisBritishStandardwasprepared,consistsofrepresentativesfromthefollowingGovernmentdepartmentandscientificandindustrialorganizations:BritishGasCorporationBritishMechanicalEngineeringConfederationBritishRubberManufacturers’AssociationLtd.BritishSteelIndustry*CouncilofBritishManufacturersofPetroleumEquipment*DepartmentofEnergyOilCompaniesMaterialsAssociation*Theindustrialorganizationsmarkedwithanasteriskintheabovelist,togetherwiththefollowing,weredirectlyrepresentedontheCommitteeentrustedwiththepreparationofthisstandard:AssociationofHydraulicEquipmentManufacturersBritishChemicalEngineeringContractorsAssociationBritishIndustrialMeasuringandControlApparatusManufacturers’AssociationBritishPlasticsFederationBritishShipResearchAssociationBritishValveManufacturers’AssociationEngineeringEquipmentUsersAssociationSteelCastingsAssociationAmendmentsissuedsincepublicationAmd.No.DateofissueComments6563July1990IndicatedbyasidelineinthemarginCOPYRIGHT2003;BritishStandardsInstitutiononERCSpecsandStandardsDocumentprovidedbyIHSLicensee=QatarPetroleum/5943...