ASTM D6411/D6411M-1999(2005) 低释气性材料室温硫化硅酮橡胶的标准规范

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【英文标准名称】:StandardSpecificationforSliconeRubberRoomTemperatureVulcanizingLowOutgassingMaterials
【原文标准名称】:低释气性材料室温硫化硅酮橡胶的标准规范
【标准号】:ASTMD6411/D6411M-1999(2005)
【标准状态】:现行
【国别】:美国
【发布日期】:1999
【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】:D14.80
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:silicon;siliconerubber;roomtemperaturevulcanizing;RTV;adhesive;compound;lowoutgassing
【摘要】:1.1Thespecificationcoversatwo-partflowablespacegraderoomtemperaturevulcanizing(RTV)siliconerubberadhesiveorcompound.Thematerialisspecificallydesignedforapplicationsrequiringextremelowtemperature,lowoutgassingandminimalvolatilecondensiblesunderextremeoperatingconditions.TheRTVsiliconerubbershouldbesuitableforwithstandingenvironmentalexposuretotemperaturesfrom-115to200C(-175to392F).Thematerialshouldalsowithstandthecombinationofstress,temperature,andrelativehumidityexpectedtobeencounteredinservice.TheRTVsiliconerubbermaybeusedasasealing,caulking,pottingorbondingmaterialforapplicationsonmetal,plastics,rubber,glass,andceramicproducts.TypesIandIIareoftenusedascoatings.1.2ThevaluesstatedinSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Withinthetext,theinch-poundunitsareshowninbrackets.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemmustbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththisspecification.1.3Thefollowingprecautionarystatementreferstothetestmethodportiononly,Section,ofthisspecification:Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G34
【国际标准分类号】:83_060
【页数】:4P.;A4
【正文语种】:英语


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基本信息
标准名称:粗铅化学分析方法 金量和银量的测定 火试金法
英文名称:Methods for chemical analysis of crude lead-Determination of gold and silver content-Fire-assaying method
中标分类: 冶金 >> 金属化学分析方法 >> 重金属极其合金分析方法
ICS分类: 冶金 >> 有色金属 >> 铅、锌、锡及其合金
替代情况:替代YS/T 248.7-1994;YS/T 248.8-1994
发布部门:中华人民共和国国家发展和改革委员会
发布日期:2007-04-13
实施日期:2007-10-01
首发日期:
作废日期:
提出单位:全国有色金属标准化技术委员会
归口单位:全国有色金属标委会
起草单位:株洲冶炼集团有限责任公司
起草人:王文彬、刘振东、胡军凯
出版社:中国标准出版社
出版日期:2007-10-01
页数:平装大16开 页数:8, 字数:8千字
适用范围

本部分规定了粗铅中金量和银量的测定方法。

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所属分类: 冶金 金属化学分析方法 重金属极其合金分析方法 冶金 有色金属 铅 锌 锡及其合金
【英文标准名称】:StandardPracticeforAcousticEmissionExaminationofPlate-likeandFlatPanelCompositeStructuresUsedinAerospaceApplications
【原文标准名称】:航空航天设备用板状和平板复合结构的声发射检验的标准实施规程
【标准号】:ASTME2661/E2661M-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:E07.04
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:acousticemission(AE);acousticemissionfromcomposites;AE;aerospacecomposites;continuousfibers;fiber/polymercomposites;flatpanels;highmodulusfibers;laminates;nondestructivetesting(NDT);structuralhealthmonitoring(SHM)
【摘要】:ThisAEexaminationisusefultodetectmicro-damagegeneration,accumulationandgrowthofneworexistingflaws.Theexaminationisalsousedtodetectsignificantexistingdamagefromfriction-basedAEgeneratedduringloadingorunloadingoftheseregions.Thedamagemechanismsthatcanbedetectedincludematrixcracking,fibersplitting,fiberbreakage,fiberpull-out,debondinganddelamination.Duringloading,unloadingandloadholding,damagethatdoesnotemitAEenergywillnotbedetected.WhenthedetectedsignalsfromAEsourcesaresufficientlyspacedintimesoasnottobeclassifiedascontinuousAE,thispracticeisusefultolocatetheregion(s)ofthe2-Dtestsamplewherethesesourcesoriginatedandtheaccumulationofthesesourceswithchangingloadand/ortime.TheprobabilityofdetectionofthepotentialAEsourcesdependsonthenatureofthedamagemechanisms,flawcharacteristicsandotheraspects.ForadditionalinformationseeX1.4.Concentrateddamageinfiber/polymercompositescanleadtoprematurefailureofthecompositeitem.Hence,theuseofAEtodetectandlocatesuchdamageisparticularlyimportant.AE-detectedflawsordamageconcentratedinacertainregionmaybefurthercharacterizedbyotherNDEtechniques(forexample,visual,ultrasonic,etc.)andmayberepairedasappropriate.Repairprocedurerecommendationsandthesubsequentexaminationoftherepairareoutsidethescopeofthispractice.ForadditionalinformationseeX1.5.Thispracticedoesnotaddresssandwichcore,foamcoreorhoneycombcoreplate-likecompositesduetothefactthatcurrentlythereislittleinthewayofpublishedworkonthesubjectresultinginalackofasufficientknowledgebase.RefertoGuideE2533foradditionalinformationabouttypesofdefectsdetectedbyAE,generaloverviewofAEasappliedtopolymermatrixcomposites,discussionoftheFelicityratio(FR)andKaisereffect,advantagesandlimitations,AEofcompositepartsotherthanflatpanels,andsafetyhazards.1.1Thispracticecoversacousticemission(AE)examinationormonitoringofpanelandplate-likecompositestructuresmadeentirelyoffiber/polymercomposites.1.2TheAEexaminationdetectsemissionsourcesandlocatestheregion(s)withinthecompositestructurewheretheemissionoriginated.WhenproperlydevelopedAE-basedcriteriaforthecompositeitemareinplace,theAEdatacanbeusedfornondestructiveexamination(NDE),characterizationofprooftesting,documentationofqualitycontrolorfordecisionsrelativetostructural-testterminationpriortocompletionofaplannedtest.OtherNDEmethodsmaybeusedtoprovideadditionalinformationaboutlocateddamageregions.ForadditionalinformationseeAppendixX1.1.3Thispracticecanbeappliedtoaerospacecompositepanelsandplate-likeelementsasapartofincominginspection,duringmanufacturing,afterassembly,continuously(duringstructuralhealthmonitoring)andatperiodicintervalsduringthelifeofastructure.1.4Thispracticeismeantforfiberorientationsthatincludecross-plies,angle-plylaminatesortwo-dimensionalwovenfabrics.Thispracticealsoappliesto3-Dreinforcement(forexample,stitched,z-pinned)whenthefibercontentinthethirddirectionislessthan5%(basedonthewholecomposite).1.5Thispracticeisdirectedtowardcompositematerialsthattypicallycontaincontinuoushighmodulusgreaterthan20GPa[3Msi]fibers.1.6ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combi......
【中国标准分类号】:V10
【国际标准分类号】:49_025_40
【页数】:18P.;A4
【正文语种】:英语