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ANSI/ASTM F1068-1990 船用单扇固定防气体/防空气的双层门的规范

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【英文标准名称】:SpecificationforDoors,Double,Gastight/Airtight,IndividuallyDogged,forMarineUse
【原文标准名称】:船用单扇固定防气体/防空气的双层门的规范
【标准号】:ANSI/ASTMF1068-1990
【标准状态】:现行
【国别】:美国
【发布日期】:1990
【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】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:门;造船
【英文主题词】:Bulkheads;Doors;Doubledoors;Gastight;Shipbuilding;Use
【摘要】:Thisspecification,tobeusedinconjunctionwithSpecificationF1073,coverstheprincipaldimensionsandthemechanicalrequirementsformanufacturingsteelandaluminumindividuallydogged,airtight/gastightdoubledoorsforpersonnelaccessthroughbulkheads,completewithframes,intendedtomaintainthestructuralandtheairandgastightnessintegrityofthebulkheads.Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.ThefollowingprecautionarycaveatpertainsonlytotheTestMethodsportion,Section6,ofthisspecification:Thisstandarddoesnotpurporttoaddressthesafetyconcernsassociatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:U25
【国际标准分类号】:47_020_10
【页数】:
【正文语种】:英语


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【英文标准名称】:AudioCoverageUniformityinEnclosedListenerAreas
【原文标准名称】:封闭听众区内的音频覆盖均匀性
【标准号】:ANSI/INFOCOMM1M-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】:声学;音频的;覆盖;测定;电声学;封闭的;经历;计量学;加筋;声音;同一
【英文主题词】:Acoustics;Audio;Coverage;Determination;Electroacoustics;Enclosed;Experiences;Metrology;Reinforcement;Sound;Uniformity
【摘要】:Deliveryofconsistentaudiocoverageinsoundreinforcementsystemstoimprovethequlaityofexperiencefortheaudience,andanewmetrologyfordeterminingthiscoverage
【中国标准分类号】:M63
【国际标准分类号】:17_140_50
【页数】:
【正文语种】:英语


【英文标准名称】:Medicalelectricalequipment.CharacteristicsofdigitalX-rayimagingdevices.Determinationofthedetectivequantumefficiency
【原文标准名称】:医疗电气设备.数字X光成像设备特性.量子检测效率的确定
【标准号】:BSEN62220-1-2004
【标准状态】:现行
【国别】:英国
【发布日期】:2004-02-02
【实施或试行日期】:2004-02-02
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:临床检查器械;定义(术语);诊断(医学);诊断设备;数字的;数字信号;显示装置;电气工程;电气设备;医用电气设备;电医学;电子设备及元件;医疗设备;医疗放射照相术;医疗技术学;量子效率;辐射学;放射疗法;规范(验收);术语学;X射线仪;X射线图象增强器;X射线
【英文主题词】:Clinicalinvestigationinstruments;Definitions;Diagnosis(medical);Diagnosticequipment;Digital;Digitalsignals;Displayunits;Electricalengineering;Electricalequipment;Electricalmedicalequipment;Electromedicine;Electronicequipmentandcomponents;Medicalequipment;Medicalradiography;Medicaltechnology;Quantumefficiency;Radiology;Radiotherapy;Specification(approval);Terminology;X-rayapparatus;X-rayimageintensifiers;X-rays
【摘要】:ThispartofIEC62220specifiesthemethodforthedeterminationoftheDETECTIVEQUANTUMEFFICIENCY(DQE)ofDIGITALX-RAYIMAGINGDEVICESasafunctionofexposureandofSPATIALFREQUENCYfortheworkingconditionsintherangeofthemedicalapplicationasspecifiedbytheMANUFACTURER.ThispartofIEC62220isapplicabletoprojectionDIGITALX-RAYIMAGINGDEVICESproducingIMAGESindigitalformatthatareusedformedicaldiagnosis.ItisrestrictedtoDIGITALX-RAYIMAGINGDEVICESthatareusedforradiographicimaging,suchasCRsystems,selenium-basedsystems,flatpaneldetectors,opticallycoupledCCDdetectors,anddigitalX-RAYIMAGEINTENSIFIERSusedforsingleexposures.ThispartofIEC62220isnotapplicableto-DIGITALX-RAYIMAGINGDEVICESintendedtobeusedinmammographyorindentalradiography;-COMPUTEDTOMOGRAPHY:-systemsinwhichtheX-rayfieldisscannedacrossthepatient;and-devicesfordynamicimaging(whereseriesofimagesareacquired,asinfluoroscopicorcardiacimaging).NOTEThedevicesnotedaboveareexcludedbecausetheycontainmanyparameters(forinstance,beamqualities,geometry,timedependence,etc.)whichdifferfromthoseimportantforgeneralradiography.Itisintendedtotreatsomeofthesetechniquesinseparatestandardsashasbeendoneforothertopics,forinstanceforspeedandcontrast,inIECandISOstandards.
【中国标准分类号】:C43
【国际标准分类号】:11_040_50
【页数】:32P;A4
【正文语种】:英语