NF J25-513-1958 造船工业.海水专用阀门.船侧边排水阀.式样II.操作机构零件细目表
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【英文标准名称】:Shipbuilding.Seawatervalves.Shipsidedischargevalves.PatternII.Operatingmechanismpartslist.
【原文标准名称】:造船工业.海水专用阀门.船侧边排水阀.式样II.操作机构零件细目表
【标准号】:NFJ25-513-1958
【标准状态】:现行
【国别】:法国
【发布日期】:1958-09-01
【实施或试行日期】:1958-09-30
【发布单位】:(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:U52
【国际标准分类号】:47_020_30
【页数】:2P.;A4
【正文语种】:其他
【英文标准名称】:BitSequencingoftheAmericanNationalCodeforInformationInterchangeinSerial-By-BitDataTransmission
【原文标准名称】:在按位串行数据传送中信息交换用美国国家标准代码的位定序
【标准号】:ANSIX3.15-1976
【标准状态】:作废
【国别】:美国
【发布日期】:1976
【实施或试行日期】:
【发布单位】:美国国家标准学会(ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:数据传送;信息交换;代码;情报系统
【英文主题词】:datatransfer;codes;informationsystems;informationinterchange
【摘要】:
【中国标准分类号】:L71
【国际标准分类号】:35_040
【页数】:10P;A4
【正文语种】:英语
【英文标准名称】:StandardPracticesforAirLeakageSiteDetectioninBuildingEnvelopesandAirBarrierSystems
【原文标准名称】:建筑物外层和空障系统漏气现场检测的标准实施规程
【标准号】:ASTME1186-2003(2009)
【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】:美国材料与试验协会(US-ASTM)
【起草单位】:E06.41
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:acousticmethod;airbarriersystem;airleakage;airleakagedetection;anemometermethod;bubblemethod;buildingenvelopes;infraredmethod;smoketracemethod;tracergasmethod;Acousticaltests;Airleakagetesting--buildingmaterials/constructions;
【摘要】:Airinfiltrationintotheconditionedspaceofabuildingaccountsforasignificantportionofthethermalspaceconditionload.Airinfiltrationcanaffectoccupantcomfortbyproducingdrafts,causeindoorairqualityproblemsbycarryingoutdoorpollutantsintooccupiedbuildingspaceand,inhothumidclimates,candepositmoistureinthebuildingenveloperesultingindeteriorationofbuildingenvelopecomponents.Incoldclimates,exfiltrationofconditionedairoutofabuildingcandepositmoistureinthebuildingenvelopecausingdeteriorationofbuildingenvelopecomponents.Differentialpressureacrossthebuildingenvelopeandthepresenceofairleakagesitescauseairinfiltrationandexfiltration(1).Insomebuildings,restrictingairmovementbetweeninteriorzonesofabuildingmaybedesiredtoseparatedissimilarinteriorenvironmentsorpreventthemovementofpollutants.Althoughnotdealtwithspecificallyinthisstandard,thedetectionpracticespresentedcanalsobeusefulindetectingairleaksbetweeninteriorzonesofthebuilding.Airleakagesitesareoftendifficulttolocatebecauseairflowsmaybesmallundertheprevailingweatherconditions.Windconditionscanaidinairleakagedetectionbyforcingairtoenterabuilding;however,whereairisexiting,thebuildingenvelopeconstructionmaymakeobservationsdifficult.Forthesereasons,forcedpressurizationordepressurizationisstronglyrecommendedforthosepracticeswhichrequirecontrolledflowdirection.Thetechniquesforairleakagesitedetectioncoveredinthesepracticesallowforawiderangeofflexibilityinthechoiceoftechniquesthatarebestsuitedfordetectingvarioustypesofairleakagesitesinspecificsituations.Theinfraredscanningtechniqueforairleakagesitedetectionhastheadvantageofrapidsurveyingcapability.Entirebuildingexteriorsurfacesorinsidewallsurfacescanbecoveredwithasinglescanorasimplescanningaction,providedtherearenoobscuringthermaleffectsfromconstructionfeaturesorincidentsolarradiation.Thedetailsofaspecificairleakagesitemaythenbeprobedmorecloselybyfocusingonthelocalarea.Localleakdetectioniswelladdressedwiththesmoketracer,anemometer,sounddetection,thebubbledetection,andthetracergastechniques,howeverthesetechniquesaretimeconsumingforlargesurfaces.Thepressurizedordepressurizedtestchamberandsmoketraceroradepressurizedtestchamberandleakdetectionliquidpracticescanbeusedinsituationswheredepressurizingorpressurizingtheentireenvelopeisimpractical,suchasisthecaseduringconstruction.Bothofthepracticesenablethedetectionofverysmallleaks.Toperformthesepracticesrequiresthattheairbarriersystembeaccessible.Complexityofbuildingairleakagesitesmaydiminishtheabilityfordetection.Forexample,usingthesounddetectionapproach,soundmaybeabsorbedinthetortuouspaththroughtheinsulation.Airmovingthroughsuchbuildingleakagepathsmaylosesomeofitstemperaturedifferentialandthusmakethermographicdetectiondifficult.Theabsenceofjet-likeairflowatanairleakagesitemaymakedetectionusingtheanemometerpracticedifficult.Stackeffectinmultistorycommercialbuildingscancausegravitydamperstostandopen.Computer-controlleddampersshouldbeplacedinnormalandnightmodestoaidindeterminingtheconditionsexistinginthebuilding.Sensitivepressuremeasurementequipmentcanbeusedforevaluatingpressurelevelsbetweenfloorsandtheexterior.Monitoringsystemsinhigh-techbuildingscansupplyqualitativedataonpressuredifferences.1.1Thesepracticescoverstandardizedtechniquesforlocatingairleakagesitesinbuildingenvelopesandairbarriersystems.1.2Thesepracticesofferachoiceof......
【中国标准分类号】:P31
【国际标准分类号】:91_120_99
【页数】:7P.;A4
【正文语种】:英语
