BS ISO 14951-7-1999 航天系统.流体特性.联氨推进剂

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【英文标准名称】:Spacesystems-Fluidcharacteristics-Hydrazinepropellant
【原文标准名称】:航天系统.流体特性.联氨推进剂
【标准号】:BSISO14951-7-1999
【标准状态】:现行
【国别】:英国
【发布日期】:1999-11-15
【实施或试行日期】:1999-11-15
【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】:推进剂;等级(质量);成份允差;纯度;液体;特性;航天飞行器;飞机的地面服务;航天器;化学成分;气体;流体;杂质;含量测定;航空燃料;验证;液化气;航天技术;外观检查(试验);联氨;煤气;分类系统
【英文主题词】:Aerospacetransport;Aviationfuels;Chemicalcomposition;Classificationsystems;Fluids;Fuels;Hydrazine;Impurities;Properties;Spacetransport;Spacecraft;Specification;Testing
【摘要】:ThispartofISO14951specifieslimitsforthechemicalcompositionandphysicalpropertiesofhydrazine(N2H4)propellantandtestmethodsforverificationofpropellantcomposition.ThispartofISO14951isapplicabletohydrazinepropellantofthefollowinggrades,intendedforuseasafuelinpropellantsystemsofspacesystems:—standard:normalproductionandqualitycontrol(suitableformostuses);—monopropellant:normalproductwithstrictcontrolofspecifiedimpurities(tobespecifiedonlyformonopropellantcatalyticengineswhereextendedlifeofthecatalystisdesired);—highpurity:specialproductionwithstrictcontrolofspecifiedimpurities.ThispartofISO14951isapplicabletopropellantusedinbothflighthardwareandgroundfacilities,systems,andequipment.Itisapplicabletoinfluentsonlytotheextentspecifiedherein.CAUTION—Hydrazine,intheliquidorvapourform,istoxicandvolatile.Careshouldbetakeninthehandlingandstorageofhydrazinetopreventcontactwiththehumanbodyandwithmaterialsthatarenotcompatible.
【中国标准分类号】:V39
【国际标准分类号】:49_140
【页数】:8P.;A4
【正文语种】:英语


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【英文标准名称】:Informationtechnology.JPEG2000imagecodingsystem.Compoundimagefileformat
【原文标准名称】:信息技术.JPEG2000图像编码系统.压缩图像文件格式
【标准号】:BSISO/IEC15444-6-2003
【标准状态】:现行
【国别】:英国
【发布日期】:2003-12-02
【实施或试行日期】:2003-12-02
【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】:编码(数据转换);数据压缩;数据格式;数据处理;定义(术语);数字数据;图形数据处理;图像处理;信息技术;JPEG
【英文主题词】:Coding(dataconversion);Datacompression;Dataformats;Dataprocessing;Definitions;Digitaldata;Graphicdataprocessing;Imageprocessing;Informationtechnology;JPEG
【摘要】:ThisInternationalStandarddefinesanormativebutoptionalfileformatforstoringcompoundimagesusingtheJPEG2000fileformatfamilyarchitecture.ThisformatisanextensionoftheJP2fileformatdefinedinITU-TRecT.800|ISO/IEC15444-1AnnexIandusesboxesdefinedforboththeJP2fileformatandtheJPXfileformatdefinedinITU-TRecT.801|ISO/IEC15444-2AnnexM.Thisstandardisusefulforapplicationsstoringmultiplepages,imageswithmixedcontent,and/orimagesthatneedmorestructurethanprovidedinJP2.ApplicationsthatimplementthisfileformatshallimplementitasdescribedinthisInternationalStandard.ThisInternationalStandard—specifiesabinarycontainerformultiplebi-levelandcontinuous-toneimagesusedtorepresentacompoundimage,—specifiesamechanismbywhichmultipleimagescanbecombinedintoasinglecompoundimage,basedontheMixedRasterContentmodel—specifiesamechanismforgroupingmultipleimagesinahierarchyoflayoutobjects,pagesandpagecollections,—specifiesamechanismforstoringJPEG2000andothercompressedimagedataformats,—specifiesamechanismbywhichmetadatacanbeincludedinfilesspecifiedbythisInternationalStandard.
【中国标准分类号】:L71
【国际标准分类号】:35_040
【页数】:78P.;A4
【正文语种】:英语


【英文标准名称】:Railwayapplications-Noiseemission-Characterisationofthedynamicpropertiesoftracksectionsforpassbynoisemeasurements;GermanversionEN15461:2008+A1:2010
【原文标准名称】:铁路设施.噪声排放.火车经过时噪声测量用轨道部件的动态功能特性;德文版本EN15461-2008+A1-2010
【标准号】:DINEN15461-2011
【标准状态】:现行
【国别】:德国
【发布日期】:2011-01
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:声学测量;声学;;定义;耐久性;定义(术语);脉冲响应;测量;;测量技术;移动噪声;噪声;噪声排放;噪声辐射;噪声(环境的);噪声测量值;噪声测量;永存性铁路;性能;特性;铁轨;钢轨;铁路设施;铁路应用设施;铁道车辆;铁路;;声音;声音传播;结构噪声;试验;测试;痕量元素分析;;轨道(物料装卸设备);交通业务;;振动;振动工程
【英文主题词】:Acousticmeasurement;Acoustics;Decaytime;Definitions;Impulseresponse;Measurement;Measurementofsolid-bornesound;Measuringtechniques;Movementnoise;Noise;Noiseemissions;Noise(environmental);Noisemeasurements;Permanentways;Properties;Rails;Railwayapplications;Railwayvehicles;Railways;Rollingnoise;Sound;Soundpropagation;Structure-bornenoise;Testing;Trackarea;Tracks(materialshandlingequipment);Traffic;Train;Vibration;Vibrationengineering
【摘要】:ThisEuropeanStandardspecifiesamethodforcharacterizingthedynamicbehaviourofthestructureofatrackrelativetoitscontributiontothesoundradiationassociatedwiththerollingnoise.ThisEuropeanStandarddescribesamethodfor:a)acquiringdataonmechanicalfrequencyreponsefunctionsonatrack;b)processingmeasurementdatainordertocalculateanestimateofthevibrationdecayratesalongtherailsinanaudiblefrequencyrangeassociatedwiththerollingnoise;c)presentingthisestimateforcomparisionwiththelowerlimitsofthedecayrates.Itisapplicableforevaluatingtheperformanceofsectionsofreferencetracksformeasuringrailwayvehiclenoisewithintheframeworkofofficialapprovaltests.Themethodisnotapplicableforcharacterizingthevibrationbehaviouroftracksonloadbearingstructuressuchasbridgesorembankmments.
【中国标准分类号】:Z32
【国际标准分类号】:17_140_30;93_100
【页数】:20P.;A4
【正文语种】:英语