SAE ARP1088 Aircraft Indicating Systems
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来源:标准资料网
Product Code:SAE ARP1088
Title:Aircraft Indicating Systems
Issuing Committee:A-20ac Crew Station And Interior Lighting Committee
Scope:The purpose of this ARP is to recommend certain basic considerations which the design engineer should observe when designing a visual warning indicating system. This ARP is intended to cover the warning, caution and advisory indicating system required for aerospace vehicles. This ARP sets forth recommendations for the design and installation of indicating systems. It is recognized that many types of warning indicators and systems are available for the designer to use. This ARP does not recommend any specific system but outlines basic design and installation requirements.
【英文标准名称】:PreparingaTestIngotofGermaniumbyHydrogenReductionofGermaniumDioxide
【原文标准名称】:二氧化锗的氢还原法制备试验用锗锭
【标准号】:ASTMF27-1983
【标准状态】:作废
【国别】:美国
【发布日期】:1983
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:试验;准备;氢还原;锗;铸锭;工艺;电子工程
【英文主题词】:hydrogenreduction;processes;germanium;preparation;testing;electronicengineering;ingots
【摘要】:
【中国标准分类号】:H82
【国际标准分类号】:29_040_30
【页数】:3P;A4
【正文语种】:英语
【英文标准名称】:StandardPracticeforIntegrityTestingofWaterFiltrationMembraneSystems
【原文标准名称】:水过滤膜系统的完整性测试的标准实施规程
【标准号】:ASTMD6908-2006(2010)
【标准状态】:现行
【国别】:美国
【发布日期】:2006
【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】:D19.08
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:continuousmonitoring;integrity;membrane;multiplexing;pressuredecay;solubledyetest;TOCtest;vacuumdecay;Dyetracers;Filters/filterprocedures--watertesting;Integritytesting;Membranefilters(MF)--watertesting;Pressuredecay;Solubledye
【摘要】:Theintegritytestmethodsdescribedareusedtodeterminetheintegrityofmembranesystems,andareapplicabletosystemscontainingmembranemoduleconfigurationsofbothhollowfiberandflatsheet;suchas,spiral-woundconfiguration.InallcasesthepracticesapplytomembranesintheRO,NF,andUFmembraneclasses.However,theTOCandDyeTestpracticesdonotapplytomembranesintheMFrangeortheupperendoftheUFporesizerange(0.01x03BC;mandlargerporesizes)duetoinsignificantorinconsistentremovalofTOCmaterialbythesemembranes.Thesemethodsmaybeusedtoidentifyrelativechangesintheintegrityofasystem,orusedinconjunctionwiththeequationsdescribedin9.4,toprovideameansofestimatingtheintegrityintermsoflogreductionvalue.Forcriticalapplications,estimatedlogreductionsusingtheseequationsshouldbeconfirmedbyexperimentfortheparticularmembraneandsystemconfigurationused.Theabilityofthemethodstodetectanygivendefectisaffectedbythesizeofthesystemorportionofthesystemtested.Selectingsmallerportionsofthesystemtotestwillincreasethesensitivityofthetesttodefects.Whendeterminingthesizethatcanbetestedasadiscreteunit,usetheguidelinessuppliedbythesystemmanufacturerorthegeneralguidelinesprovidedinthisstandard.Theapplicabilityofthetestsislargelyindependentofsystemsizewhenmeasuredintermsoftheimpactofdefectsonthetreatedwaterquality(thatis,thesystemLRV).Thisisbecausethebypassflowfromanygivendefectisdilutedinproportiontothesystemstotalflowrate.Forexample,a10-modulesystemwithasingledefectwillproducethesamewaterqualityasa100-modulesystemwithtenofthesamesizedefects.1.1Thispracticecoversthedeterminationoftheintegrityofwaterfiltrationmembraneelementsandsystemsusingairbasedtests(pressuredecayandvacuumhold),solubledye,continuousmonitoringparticulatelightscattertechniques,andTOCmonitoringtestsforthepurposeofrejectingparticlesandmicrobes.Thetestsareapplicabletosystemswithmembranesthathaveanominalporesizelessthanabout1x00B5;m.TheTOC,andDye,testsaregenerallyapplicabletoNFandROclassmembranesonly.1.2Thispracticedoesnotpurporttocoverallavailablemethodsofintegritytesting.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.7.1Thispracticecoversthedeterminationofintegrityformembranesystemsusingthepressuredecaytest(PDT)andvacuumdecaytest(VDT).7.2Thetestsmaybeusedonmembranesinallclasses,ROthroughMF,andaresuitableforhollowfibers,tubularandflatsheet(suchasspiralwound)configurations.However,thePDTismostcommonlyemployedforin-situtestingofUFandMFsystemsandtheVDTfortestingNFandROelementsandsystems.SeePracticeD3923.10.1ThispracticeisapplicablewherethemembranesystemandwatersourcewillallowthemonitoringofTOCbothupstreamanddownstreamofthesystem,andatleastorderofmagnitudedifferencefromthefeedcanbemeasuredinthepermeate(product)water.SeeD4839
