DIN 15402-2-1983 起重机用吊钩.(Ramshornhooks)双钩.带螺纹轴的成品
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【英文标准名称】:Liftinghooksforliftingappliances;Ramshornhooks;Finishedpartswiththreadedshank
【原文标准名称】:起重机用吊钩.(Ramshornhooks)双钩.带螺纹轴的成品
【标准号】:DIN15402-2-1983
【标准状态】:现行
【国别】:德国
【发布日期】:1983-09
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:吊钩;尺寸;提升设备;机械工程;载荷盛装部件;提升拾取器;预制配件
【英文主题词】:liftingequipment;mechanicalengineering;liftingtackle;liftingappliances;load-containingdevices;dimensions;prefabricatedparts;hooks
【摘要】:Liftinghooks;ramshornshankhooks,mashinedramshornhookswithshankwiththreadCrochetsdelevage;crochetsdoubleàtige,crochetsusinesàtigeavecfilet
【中国标准分类号】:J80
【国际标准分类号】:53_020_30
【页数】:5P.;A4
【正文语种】:德语
Product Code:SAE AMS3385
Title:Markers, Ignition-Cable Non-Metallic (Cancelled Dec 2002)
Issuing Committee:Ams P Polymeric Materials Committee
Scope:【英文标准名称】:StandardPracticeforUseoftheUltrasonicTimeofFlightDiffraction(TOFD)Technique
【原文标准名称】:采用超声衍射时差法的标准实施规程
【标准号】:ASTME2373-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:E07.06
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:flaw-heightsizing;flawsizing;nondestructivetesting;time-of-flight-diffraction;TOFD;ultrasonic;Time-of-FlightDiffraction(TOFD)
【摘要】:ThispracticeprovidesgeneralprinciplesfortheapplicationoftheTime-of-FlightDiffractionTechniqueasatoolfordetectionandsizingofdiscontinuities.TOFDisanondestructiveultrasonicexaminationtechniquethatisnotbasedonamplituderesponse.However,sufficientsensitivityisrequiredtoidentifyindicationsforevaluation.Techniquesusedaretypicallyappliedtoweldedjointsincarbonsteelbuttheprinciplesmaybeapplicabletootherapplicationsincludingothermaterialswithsuitablevalidationproceduresagreeabletothecontractingparties.Inadditiontoastand-aloneultrasonicdetectiontechniqueTOFDmaybeusedinconjunctionwithweldexaminationssuchasthosedescribedinPracticesE164andE1961whereitmaybeusedtoimprovesizingestimatesofflawsdetectedbythemanualormechanizedpulse-echotechniquesandhelpdiscriminatebetweenflawsandgeometricreflectors.Thetechniquehasproveneffectiveonthicknessesfrom9to300mm(0.375to12in.).TOFDhasbeenusedonthicknessesoutsideofthisrangebutspecialconsiderationsarenecessary.Techniquesdevelopedoutsideofthisrangeofthicknessshallbedemonstratedascapableofmeetingtherequireddetectionandsizingrequirementsofthespecificationused.1.1ThispracticeestablishestherequirementsfordevelopingultrasonicexaminationproceduresusingtheultrasonictechniqueknownasTime-of-FlightDiffraction(TOFD).1.2ConsistentwithASTMPolicy,TOFDmayberegardedasanultrasonictestmethodwherebythequalitiesandcharacteristicsoftheitemtestedareevaluated,measuredandinsomecasesidentified.Measurementsmaybesubjecttoprecisionandbiasthatmaybedeterminedstatisticallyorasafunctionofsomeparameter(s)suchaswavelength.Thispracticemaybeusedforapplicationsthatwouldbequalitativeandproperlyaddressedasexaminationsaswellasquantitativeandmoreproperlyaddressedastests.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Inch-poundunitsareprovidedforinformation.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:V04
【国际标准分类号】:71_040_99
【页数】:12P.;A4
【正文语种】:英语
