标准资料网-标准资料免费资源平台

【英文标准名称】:StandardTestMethodforUltrasonicInspectionofAluminum-AlloyPlateforPressureVessels
【原文标准名称】:压力容器用铝合金板的超声波检验的标准试验方法
【标准号】:ASTMB548-2003(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:2003
【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】:B07.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:Aluminumalloys--ultrasonicinspection;Aluminumalloys(plate/sheet)--specifications;Pressurevessels;Ultrasonictesting--metals/alloys
【摘要】:Anumberoffactorssuchastheconditionoftheentryandbacksurfacesoftheplate,theinclinationoftheultrasonicbeamwithrespecttotheentrysurface,andtheperformancecharacteristicsofthetestsystemmaycauseeitherareductionofisolatedindicationsorasubstantiallossofbackreflectionandtherebycouldseriouslyimpairthereliabilityofthetestprocedureoutlinedinthisstandard.Accurateevaluationsofdiscontinuitysizealsomaybelimitedsignificantlybyvariationsinbeamcharacteristicswhichexistinmostsearchunits.Forthisreason,discontinuitysizeasdeterminedbythetestprocedureoutlinedinthismethodisregardedasx201C;apparentx201D;orx201C;estimatedx201D;inrecognitionofthelimitedquantitativevalueofthemeasurement.Becausealargenumberofinteractingvariablesinatestsystemcanadverselyinfluencetheresultsofanultrasonictest,theactualquantitativeeffectsofdetecteddiscontinuitiesuponthemechanicalpropertiesoftheinspectedplatearedifficulttoestablish.Consequently,thisultrasonicinspectionmethodisnotapplicableasanexclusiveindicatoroftheultimatequalityandperformanceofpressurevesselsbutprovidesareliablecontrolofplatequalitytoavoidfailureduringtheformingprocessforfabricationofvessels.1.1Thistestmethodcoverspulse-echoultrasonicinspectionofaluminum-alloyplateofthicknessequaltoorgreaterthan0.500in.(12.7mm)foruseinthefabricationofpressurevessels.Theultrasonictestisemployedtodetectgrossinternaldiscontinuitiesorientedinadirectionparalleltotherolledsurfacesuchascracks,ruptures,andlaminations,andtoprovideassurancethatonlyplatethatisfreefromrejectablediscontinuitiesisacceptedfordelivery.1.2Theinspectionmethodandacceptancecriteriaincludedinthisstandardshallbelimitedtoplateofthefollowingaluminumalloys:1060,1100,3003,Alclad3003,3004,Alclad3004,5050,5052,5083,5086,5154,5254,5454,5456,5652,6061,andAlclad6061.1.3Thistestmethodappliesonlytoultrasonictestsusingpulsedlongitudinalwaveswhicharetransmittedandreceivedbyasearchunitcontainingeitherasinglecrystaloracombinationofelectricallyinterconnectedmultiplecrystals.Ultrasonictestsemployingeitherthethrough-transmissionortheangle-beamtechniquesarenotincluded.1.4Thistestmethodshallbeusedwhenultrasonicinspectionasprescribedhereinisrequiredbythecontract,purchaseorder,orreferencedplatespecification.1.5Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H26
【国际标准分类号】:77_150_10
【页数】:5P.;A4
【正文语种】:英语


【英文标准名称】:Plastics-Epoxyresins-Determinationofchlorinecontent-Part3:Totalchlorine(ISO21627-3:2009);GermanversionENISO21627-3:2009
【原文标准名称】:塑料.环氧树脂.氯含量的测定.第3部分:总氯量(ISO21627-3-2009).德文版本ENISO21627-3-2009
【标准号】:ENISO21627-3-2009
【标准状态】:现行
【国别】:
【发布日期】:2010-01
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:化学分析和试验;氯;含氯度;定义;含量测定;环氧树脂;解释;数学计算;塑料;试验设备;试验
【英文主题词】:Chemicalanalysisandtesting;Chlorine;Chlorinity;Definitions;Determinationofcontent;Epoxyresins;Interpretations;Mathematicalcalculations;Plastics;Testequipment;Testing
【摘要】:
【中国标准分类号】:
【国际标准分类号】:83_080_10
【页数】:12P.;A4
【正文语种】:英语