【英文标准名称】:StandardTestMethodforRoomFireTestofWallandCeilingMaterialsandAssemblies
【原文标准名称】:墙壁和天花板材料及组件的房屋着火试验的标准试验方法
【标准号】:ASTME2257-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:E05.21
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:carbondioxide;carbonmonoxide;corner;fire;fire-testresponse;flame;heatrelease;heatreleaserate;ignition;opticaldensity;oxygenconsumptioncalorimetry;room;smokeobscuration;toxicgases;Ceilingsuspensionsystems;Firetesti
【摘要】:Thisfiretestisapplicabletoadescriptionofcertainfireperformancecharacteristicsinappraisingwallandceilingmaterials,products,orsystemsunderspecifiedfire-exposureconditionsinanenclosure.Thetestindicatesthemaximumextentoffiregrowthinaroom,therateofheatrelease,andiftheyoccur,thetimetoflashover,andthetimetoflameextensionbeyondthedoorwayfollowingflashover.Itdeterminestheextenttowhichthewallandceilingmaterialsorassembliescontributetofiregrowthinaroomandthepotentialforfirespreadbeyondtheroom,undertheparticularconditionssimulated.Itdoesnotmeasurethecontributionoftheroomcontents.(SeeAppendixX1,Commentary.)Note18212;Timetoflashoverisdefinedhereinaseitherthetimewhentheradiantfluxontothefloorexceeds20kW/m2ortheaveragetemperatureoftheupperhotgaslayerreaches600x00B0;C(1100x00B0;F)orflamesexitthedoorwayorspontaneousignitionofapapertargetontheflooroccurs.Thespontaneousignitionofacrumpledsinglesheetofnewspaperplacedonthefloor0.9m(3ft)outfromthecenteroftherearwallprovidesavisualindicationofflashover.Thepotentialforthespreadoffiretootherobjectsintheroom,remotefromtheignitionsource,isevaluatedbymeasurementsof:(a)thetotalheatfluxincidentonthecenterofthefloor,and(b)acharacteristicupperlevelgastemperatureintheroom.Thepotentialforthespreadoffiretoobjectsoutsidetheroomoforiginisevaluatedbythemeasurementoftherateofheatreleaseofthefire.Measurementsoftherateofproductionofcarbonmonoxide,carbondioxide,andvisiblesmokearetaken.Theoverallperformanceofthetestspecimenisvisuallydocumentedbyfull-colorphotographicrecords.Videotapingofthecompletefiretestisanacceptablealternativetothephotographicrecord.Suchrecordsshowwheneachareaofthetestspecimenbecomesinvolvedinthefire.Inthisprocedure,thespecimensaresubjectedtoaspecificsetoflaboratoryfiretestexposureconditions.Ifdifferenttestconditionsaresubstitutedortheanticipatedend-useconditionsarechanged,itisnotknownwhetheritispossiblebyuseofthistesttopredictchangesintheperformancecharacteristicsmeasured.Therefore,theresultsarestrictlyvalidonlyforthefiretestexposureconditionsdescribedinthisprocedure.1.1Thisisafire-test-responsestandard.1.2Thistestmethodisintendedtoevaluate,underspecifiedfire-exposureconditions,thecontributiontoroomfiregrowthprovidedbywallorceilingmaterialsandassemblies,orboth.Themethodisnotintendedtoevaluatethefireenduranceofassembliesorfiresoriginatinginthewallassembly.Themethodprovidesameanstoevaluatetheeffectivenessofthermalbarriersinrestrictingthecontributionofcombustiblematerialsinthewallassemblytofiregrowthinaroomfire.1.3Thistestmethod,simulatingafireinthecornerofa2420by3630mm(8by12ft)roomcontainingasingleopendoorway,providesameanstoevaluatetherelativeperformanceofspecifiedwallandceilingmaterialsorassemblieswhentheyareusedtogetherinthesamerelationshipwithinanenclosure,andsimulatingthemannerinwhichtheywillbeused.1.4Thistestmethodisintendedtoevaluatethecontributiontofiregrowthprovidedbyasurfaceproductusingaspecifiedignitionsource.Itshall,however,benotedthatthetype,positionandheatoutputoftheignitionsourcewillconsiderablyinfluencefiregrowth.Thethermalexposureconditionsfromtheignitionsourcespecifiedinthismethodwillres......
【中国标准分类号】:P16
【国际标准分类号】:13_220_50
【页数】:19P.;A4
【正文语种】:英语
基本信息
| 标准名称： | 挠性杆联轴器 |
| 英文名称： | Flexible link coupling |
| 中标分类： |
船舶 >>
船用主辅机 >>
轴系设备 |
| ICS分类： |
造船和海上建筑物 >>
船舶和海上建筑物综合 >>
船用发动机和推进系统
|
| 替代情况： | 被GB/T 14653-2008代替 |
| 发布部门： | 国家技术监督局 |
| 发布日期： | 1993-10-16 |
| 实施日期： | 1994-07-01 |
| 首发日期： | 1993-10-16 |
| 作废日期： | 2008-09-01 |
| 主管部门： | 中国船舶工业集团公司 |
| 归口单位： | 全国船用机械标准化技术委员会 |
| 起草单位： | 四川齿轮箱厂 |
| 出版社： | 中国标准出版社 |
| 出版日期： | 1900-01-01 |
| 页数： | 14页 |
适用范围
本标准规定了挠性杆联轴器的分类、技术要求、试验方法和检验规则等。本标准适用于被连接两轴需角向偏移补偿和(或)轴向偏移补偿的联轴器。
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所属分类： 船舶 船用主辅机 轴系设备 造船和海上建筑物 船舶和海上建筑物综合 船用发动机和推进系统