【英文标准名称】:BaselinespecificationsofsatelliteandterrestrialreceiversforISDB(IntegratedServiceforDigitalBroadcast)
【原文标准名称】:ISDB(数字广播综合服务)用卫星和地面接收机的基础规范
【标准号】:IEC62360-2004
【标准状态】:作废
【国别】:国际
【发布日期】:2004-03
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/TC100
【标准类型】:()
【标准水平】:()
【中文主题词】:声信号;电视接收机;界面;声音广播;视频信号;卫星接收;接收台;广播接收机;接收机;广播;数据接口;规范;基本规范;规范(验收);综合服务数字广播;陆地的;ISDB;DAB;数字的;数字广播;数据传送
【英文主题词】:Acousticsignals;Basicspecification;Broadcastreceivers;Broadcasting;DAB;Datainterface;Datatransfer;Digital;Digitalbroadcasting;IntegratedServicesDigitalBroadcasting;Interfaces;ISDB;Receivers;Receivingstation;Satellitereception;Soundbroadcasting;Specification;Specification(approval);Televisionreceivers;Terrestrial;Videosignals
【摘要】:specifiesthebasicfunctions,ratings,andperformanceofreceiversfortheIntegratedServicesDigitalBroadcasting(ISDB)system.Itappliesto:receiversforstandarddigitaltelevisionbroadcasting,high-definitiontelevisionbroadcasting,andradio
【中国标准分类号】:M35
【国际标准分类号】:33_160_25
【页数】:82P;A4
【正文语种】:英语


【英文标准名称】:StandardSpecificationforHollowBrick(HollowMasonryUnitsMadeFromClayorShale)
【原文标准名称】:空心砖的标准规范(用粘土或页岩制造的空心砌块)
【标准号】:ASTMC652-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:C15.02
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:砌块;建筑;施工材料;空心砖;砖石工程;石
【英文主题词】:appearancerequirements;clay;firedmasonryunit;hollowbrick;hollowbuildingbrick;hollowfacingbrick;masonryconstruction;physicalproperties;shale
【摘要】:1.1Thisspecificationcovershollowbuildingbrickandhollowfacingbrickmadefromclay,shale,fireclay,ormixturesthereof,andfiredtoincipientfusion.Fourtypesofhollowbrickineachoftwogradesandtwoclassesarecovered.Inthisspecificationthetermhollowbrickshallbeunderstoodtomeanhollowclaymasonryunitswhosenetcross-sectionalarea(solidarea)inanyplaneparalleltothesurface,containingthecores,cells,ordeepfrogs,islessthan75%ofitsgrosscross-sectionalareameasuredinthesameplane(see).Thisspecificationdoesnotcoverbrickintendedforuseaspavingbrick(seeSpecificationC902).1.2Thepropertyrequirementsofthisstandardapplyatthetimeofpurchase.Theuseofresultsfromtestingofbrickextractedfrommasonrystructuresfordeterminingconformanceornonconformancetothepropertyrequirements(Section)ofthisstandardisbeyondthescopeofthisstandard.1.3Brickcoveredbythisspecificationaremanufacturedfromclay,shale,orsimilarnaturallyoccurringsubstancesandsubjectedtoaheattreatmentatelevatedtemperatures(firing).Theheattreatmentshalldevelopsufficientfiredbondbetweentheparticulateconstituentstoprovidethestrengthanddurabilityrequirementsofthisspecification.(See"firing"and"firingbond"inTerminologyC43.)1.4Hollowbrickdifferfromunglazedstructuralclaytile(SpecificationsC34andC212)andsolidbrick(SpecificationsC62andC216).Hollowbrickrequiregreatershellandwebthicknessesandhigherminimumcompressivestrengththanstructuralclaytile,butpermitgreatervoidareaandlesserdistancefromexposededgetocoreholethansolidbrick.Therefore,environmentalandstructuralperformancemaybedifferentinelementsconstructedofhollowbrickfromthoseconstructedofstructuralclaytileorsolidbrick.1.5Thetextofthisstandardreferencesnotesandfootnoteswhichprovideexplanatorymaterial.Thesenotesandfootnotes(excludingthoseintablesandfigures)shallnotbeconsideredasrequirementsofthestandard.1.6Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.
【中国标准分类号】:Q15
【国际标准分类号】:91_100_15
【页数】:6P.;A4
【正文语种】: