ANSI/ASME B16.51-2011 铜和铜合金压接压力配件
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来源:标准资料网
【英文标准名称】:CopperandCopperAlloyPress-ConnectPressureFittings
【原文标准名称】:铜和铜合金压接压力配件
【标准号】:ANSI/ASMEB16.51-2011
【标准状态】:现行
【国别】:美国
【发布日期】:2011
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Connect;Copperalloys;Fittings;Flanges;Pipecouplings;Pipelines;Pipes;Press;Press-connections;Pressure;Sleeves;Waterpipes
【摘要】:Establishesrequirementsforcastcopperalloy,wroughtcopper,andwroughtcopperalloy,press-connectpressurefittingsforusewithharddrawnseamlesscopperwatertubeconformingtoASTMB88forpipingsystemsconveyingwater.Thepress-connectsystem(tube,fittingandjoint)conformingtothisstandardareforuseatamaximumpressureof1380kPa(200psi)overthetemperaturerangefrom0°Cto93°C(32°Fto200°F).
【中国标准分类号】:J15
【国际标准分类号】:23_040_60
【页数】:
【正文语种】:英语
【英文标准名称】:StandardPracticeforElectromagnetic(Eddy-Current)ExaminationofNickelandNickelAlloyTubularProducts
【原文标准名称】:镍及镍合金管形制品的电磁(涡电流)检验的标准实施规程
【标准号】:ASTME571-1998(2007)e1
【标准状态】:现行
【国别】:美国
【发布日期】:1998
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:E07.07
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:discontinuities;eddy-current;electricalresistivity;electromagnetic;encirclingcoil;magneticsaturation;nickel;nickelalloy;pipe(seeNote1);probe;probecoil;tubes;tubularproducts;weldedtubing;Eddycurrentexamination;Electr
【摘要】:Eddy-currentexaminationisanondestructivemethodoflocatingdiscontinuitiesinmetallicmaterials.Signalscanbeproducedbydiscontinuitiesoriginatingoneithertheexternalorinternalsurfacesofthetubeorbydiscontinuitiestotallycontainedwithinthewall.Sincethedensityofeddycurrentsdecreasesnearlyexponentiallywithincreasingdistancefromthesurfacenearestthecoil,theresponsetodeep-seateddefectsdecreasescorrespondingly.Phasechangesarealsoassociatedwithchangesindepth,allowingtheuseofphaseanalysistechniques.Theresponsefromnaturaldiscontinuitiescanbesignificantlydifferentthanthatfromartificialdiscontinuities,suchasdrilledholesornotches.Forthisreason,sufficientworkshouldbedonetoestablishthesensitivitylevelandsetuprequiredtodetectnaturaldiscontinuitiesofconsequencetotheenduseoftheproduct.Someindicationsobtainedbythismethodmaynotberelevanttoproductquality;forexample,anirrelevantindicationmaybecausedbyminutedentsortoolchattermarks,whicharenotdetrimentaltotheenduseoftheproduct.Irrelevantindicationscanmaskunacceptablediscontinuities.Relevantindicationsarethosewhichresultfromdiscontinuities.Anyindicationthatexceedstherejectionlevelshallbetreatedasarelevantindicationuntilitcanbedemonstratedthatitisirrelevant.Generally,eddy-currentexaminationsystemsarenotsensitivetodiscontinuitiesadjacenttotheendsofthetube(endeffect).Discontinuitiessuchasscratchesorseamsthatarecontinuousanduniformoverthefulllengthofthetubemaynotalwaysbedetectedwithdifferentialencirclingcoilsorprobesscannedalongthetubelength.Formaterialthatismagnetic,astrongmagneticfieldshallbeplacedintheregionoftheexaminingcoil.Amagneticfieldmayalsobeusedtoimprovethesignal-to-noiseratiointubingthatexhibitsslightresidualmagnetism.1.1Thispracticecoverstheproceduresforeddy-currentexaminationofnickelandnickelalloytubes.Theseproceduresareapplicablefortubeswithoutsidediametersupto2in.(50.8mm),incl,andwallthicknessesfrom0.035to0.120in.(0.889to3.04mm),incl.Theseproceduresmaybeusedfortubesbeyondthesizerangerecommended,bycontractualagreementbetweenthepurchaserandtheproducer.1.2Theproceduresdescribedinthispracticemakeuseoffixedencirclingtestcoilsorprobesystems.1.3Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Note18212;Forconvenience,thetermx201C;tubex201D;orx201C;tubularproductx201D;willhereinafterbeusedtorefertobothpipeandtubing.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H26
【国际标准分类号】:
【页数】:5P.;A4
【正文语种】:英语
【英文标准名称】:Specificationfordentalzincphosphatecement
【原文标准名称】:牙科用磷酸锌粘结剂规范
【标准号】:BS3364-1961
【标准状态】:作废
【国别】:
【发布日期】:
【实施或试行日期】:
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:
【国际标准分类号】:
【页数】:
【正文语种】:
