NF E29-305-3-1988 工业阀门.带法兰的管路用阀门.第3部分:两法兰面间的尺寸.根据设备型式选择系列
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【英文标准名称】:INDUSTRIALVALVES.VALVESUSEDINFLANGEDPIPESYSTEMS.PART3:FACETOFACEDIMENSIONS.CHOICEOFSERIESFOREACHTYPEOFVALVES.
【原文标准名称】:工业阀门.带法兰的管路用阀门.第3部分:两法兰面间的尺寸.根据设备型式选择系列
【标准号】:NFE29-305-3-1988
【标准状态】:作废
【国别】:法国
【发布日期】:1988-07
【实施或试行日期】:
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:阀门;阀门和配件;工业阀门;工业的;尺寸
【英文主题词】:industrial;industrialvalves;dimensions;valves;valves-andfittings
【摘要】:
【中国标准分类号】:J16
【国际标准分类号】:
【页数】:4P;A4
【正文语种】:其他
Product Code:SAE AS5127/2
Title:Test Method for Aerospace Firewall Sealant Flame Penetration
Issuing Committee:Ams G9 Aerospace Sealing Committee
Scope:This SAE Aerospace Standard (AS) describes the procedures for the flammability testing of aircraft firewall sealants in accordance with the requirements of FAR Part 25 Sections 25.865, 25.867, 25.1191, and 25.1193. This test method is intended to determine the capability of sealant materials to control the passage of and effects from fire.【英文标准名称】:StandardTestMethodforShortRodFractureToughnessofCementedCarbides
【原文标准名称】:硬质合金短杆断裂韧度的试验方法
【标准号】:ASTMB771-1987(2006)
【标准状态】:现行
【国别】:
【发布日期】:1987
【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】:B09.06
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:碳化物;极限特性;金属;试验;烧结金属;棒材;铸件
【英文主题词】:
【摘要】:ThepropertyKIcSRdeterminedbythistestmethodisbelievedtocharacterizetheresistanceofacementedcarbidetofractureinaneutralenvironmentinthepresenceofasharpcrackunderseveretensileconstraint,suchthatthestateofstressnearthecrackfrontapproachestri-tensileplanestrain,andthecrack-tipplasticregionissmallcomparedwiththecracksizeandspecimendimensionsintheconstraintdirection.AKIcSRvalueisbelievedtorepresentalowerlimitingvalueoffracturetoughness.Thisvaluemaybeusedtoestimatetherelationbetweenfailurestressanddefectsizewhentheconditionsofhighconstraintdescribedabovewouldbeexpected.BackgroundinformationconcerningthebasisfordevelopmentofthistestmethodintermsoflinearelasticfracturemechanicsmaybefoundinRefs(1-4).3Thistestmethodcanservethefollowingpurposes:5.2.1Toestablish,inquantitativetermssignificanttoserviceperformance,theeffectsoffabricationvariablesonthefracturetoughnessofneworexistingmaterials,and5.2.2Toestablishthesuitabilityofamaterialforaspecificapplicationforwhichthestressconditionsareprescribedandforwhichmaximumflawsizescanbeestablishedwithconfidence.1.1Thistestmethodcoversthedeterminationofthefracturetoughnessofcementedcarbides(KIcSR)bytestingslottedshortrodorshortbarspecimens.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H70
【国际标准分类号】:77_160
【页数】:8P.;A4
【正文语种】:
