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SAE AMS2680 Electron-Beam Welding For Fatigue Critical Applications

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Product Code:SAE AMS2680
Title:Electron-Beam Welding For Fatigue Critical Applications
Issuing Committee:Ams B Finishes Processes And Fluids Committee
Scope:This specification defines the procedures and requirements for joining metals and alloys using the electron-beam welding process.
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【英文标准名称】:StandardDescriptiveNonmenclatureofConstituentsofAggregatesforRadiation-ShieldingConcrete
【原文标准名称】:防辐射混凝土集料组分的标准描述命名法
【标准号】:ASTMC638-2009
【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】:C09.41
【标准类型】:(Terminology)
【标准水平】:()
【中文主题词】:
【英文主题词】:aggregates;boron;concrete;iron;minerals;Aggregate(potentialalkalireactivity);Aggregate(radiation-shieldingconcrete);Boron-containingminerals;Boronfrits;Minerals;Radiation-shieldingconcrete;Terminology--concrete/aggregates/masomry
【摘要】:1.1Thisdescriptivenomenclatureisintendedtogiveaccuratedescriptionsofsomecommonorimportantnaturallyoccurringandsyntheticconstituentsofaggregatesforradiation-shieldingconcrete,that,atthesametime,arenotcommonorimportantconstituentsofconcreteaggregatesingeneraluse.Whilemostofthemineralsandrocksdiscussedbelowmayoccurinsmallquantitiesinaggregatesingeneraluse,theyarenotmajorconstituentsofsuchaggregates.CommonconstituentsofaggregatesingeneralusearedescribedinDescriptiveNomenclatureC294.Radiation-shieldingconcreteoftencontainssuchaggregates,butotherspecialaggregatesareusedinsomecircumstances.1.2Thesyntheticaggregatesincludedareferrophosphorusandboronfrit.1.3Thedescriptionsarenotadequatetopermittheidentificationofmaterials,sinceaccurateidentificationofnaturalandsyntheticaggregateconstituentsinmanycasescanonlybemadebyaqualifiedgeologist,mineralogist,orpetrographer,usingtheapparatusandproceduresofthosesciences.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.
【中国标准分类号】:Q13
【国际标准分类号】:91_100_30
【页数】:4P.;A4
【正文语种】:英语


【英文标准名称】:IndicatorPostsforFire-ProtectionService(ProposaldatedMay23,2008)
【原文标准名称】:防火设施用指示器标杆
【标准号】:ANSI/UL789-2003
【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】:控制;集水系统;防火;防火安全;消防喷水器;消防阀;指示器;位置指示器;给水
【英文主题词】:Control;Delugesystem;Fireprotection;Firesafety;Firesprinklers;Firevalves;Indicators;Positionindicators;Telltales;Watersupply
【摘要】:ProposedNewEditionforUL789
【中国标准分类号】:C84
【国际标准分类号】:13_220_20
【页数】:
【正文语种】:英语