BS 4825-4-1991+A1-2009 食品工业及其他卫生设施用不锈钢管及接头.螺纹(IDF型

+A1:2009ICS67.260;77.140.75+A1:2009©BSI20099780580656408Amendment31August2009SeeforewordNo.109/30194306DC+A1:20092009+A1:20092009+A1:2009BS4825-4:1991+A1:2009supersedesBS4825-4:1991,whichiswithdrawn.ThestartandfinishoftextintroducedoralteredbyAmendmentNo.1isindicatedinthetextbytags!.Minoreditorialchangesarenottagged.CompliancewithaBritishStandardcannotconferimmunityfromlegalobligations.20099—Part3:whereeitherin-placecleaningorfrequentdismantlingisnecessary;—Part4:wherecleaningin-placetechniquesarenormallypractised;—Part5:wherepipingsystemsarefrequentlydismantled.+A1:20092009page19.!±±±!BSEN20286-1andBSEN20286-2)+A1:20092009±±±!BSEN20286-1andBSEN20286-2)+A1:20092009±±±±!BSEN20286-1andBSEN20286-2)+A1:20092009±±±±!BSEN20286-1andBSEN20286-2)+A1:20092009±±±!BSEN20286-1andBSEN20286-2)+A1:20092009±±±±±!BSEN20286-1andBSEN20286-2)+A1:20092009±±±±!BSEN20286-1andBSEN20286-2)+A1:20092009±±±±!BSEN20286-1andBSEN20286-2)+A1:200920094!Europeansteelnumbers!BSISO48.(See10.3.)+A1:20092009in!BS4825-1:1991+A2:2009.!BS4825-1:1991+A2:2009arerecommended.+A1:20092009!BS4825-4:1991+A1:2009ÆÆÆÆÆÆ+A1:20092009°+A1:20092009!BSEN20286-1andBSEN20286-2)+A1:20092009+A1:20092009!BSENISO6507-1BSENISO6506-1BSENISO6508-1+A1:20092009!conformtoBS6920-1.!Europeansteelnumberused.!NOTEInJuly1999theWatersupply(Waterfittings)regulations1999replacedlocalwaterbyelawsinEnglandandWales.InScotland,referenceshouldbemadetotheScottishWaterbyelaws2004.GuidancecanbeobtainedfromTheWaterRegulationsAdvisoryScheme,FernClose,Pen-Y-FanIndustrialEstate,Oakdale,GwentNP113EH.AlistofWRASapprovedwaterfittingsisavailableon-lineat:20092009+A1:20092009!BS1134-1,Assessmentofsurfacetexture—Part1:MethodsandinstrumentationBS4825-1,Stainlesssteeltubesandfittingsforthefoodindustryandotherhygienicapplications—Part1:SpecificationfortubesBSEN10204,Metallicmaterials—TypesofinspectiondocumentsBSEN20286-1,ISOsystemoflimitsandfits—Part1:Basesoftolerances,deviationsandfitsBSEN20286-2,ISOsystemoflimitsandfits—Part2:TablesofstandardtolerancegradesandlimitdeviationsforholesandshaftsBSENISO6506-1,Metallicmaterials—Brinellhardnesstest—Part1:TestmethodBSENISO6507-1,Metallicmaterials—Vickershardnesstest—Part1:TestmethodBSENISO6508-1,Metallicmaterials—Rockwellhardnesstest—Part1:Testmethod(scalesA,B,C,D,E,F,G,H,K,N,T)BSISO48,Rubber,vulcanizedorthermoplastic—Determinationofhardness(hardnessbetween10IRHDand100IRHD)ISO2853,Stainlesssteelthreadedcouplingsforthefoodindustry2)+A1:20092009+A1:2009