HG/T 21553-1993 钢铺板通用图
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基本信息
| 标准名称： | 钢铺板通用图 |
| 中标分类： | 建材 >> 建筑构配件与设备 >> 金属构配件 |
| ICS分类： | 建筑材料和建筑物 >> 建筑构件 |
| 发布日期： | 1900-01-01 |
| 实施日期： | 1992-01-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 出版日期： | 1900-01-01 |
| 页数： | 22页 |
适用范围
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前言
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目录
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引用标准
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所属分类： 建材 建筑构配件与设备 金属构配件 建筑材料和建筑物 建筑构件
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【英文标准名称】:IntegratedServicesDigitalNetwork(ISDN)-DigitalSubscriberSignallingSystemNo.one(DSS1)protocol;Basiccallcontrol;enhancementatthe"b"serviceentrypointforVirtualPrivateNetwork(VPN)applications-Part5:TestSuiteStructureandTest
【原文标准名称】:综合业务数字网(ISDN).数字用户用1号信令系统(DSS1)协议.基本呼叫控制.虚拟专用网(VPN)用"b"业务入口点的增强.第5部分:网络用试验组结构和试验目的(TSS&TP)规范
【标准号】:EN301060-5-1998
【标准状态】:现行
【国别】:
【发布日期】:2000-04
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:无线电装置;传播技术;信令系统;测试套;电信;电信;数据处理;专业网;信息处理;数字的;综合业务数字网络;虚拟的;电路网络
【英文主题词】:Circuitnetworks;Communicationtechnology;Dataprocessing;Digital;Informationprocessing;ISDN;Privatenetworks;Radiosystems;Signallingsystems;Telecommunication;Telecommunications;Testsuites;Virtual
【摘要】:
【中国标准分类号】:M11
【国际标准分类号】:33_080
【页数】:1P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforCharacterizingtheEffectofExposuretoEnvironmentalCyclingonThermalPerformanceofInsulationProducts
【原文标准名称】:暴露于环境热循环对于保温产品的热性能的影响的标准试验方法
【标准号】:ASTMC1512-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:C16.33
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:environmentalcycling;thermalinsulation;Thermalinsulatingmaterials;Boardthermalinsulation;Composites--buildingapplications;Environmentalcontrol/fate;Fieldfabrication;Preformedthermalinsulation;Protectivefacings;Rigidthermalinsulatio
【摘要】:Exposingaspecimentoconditionsofone-directionalenvironmentalcyclingcanincreaseitsmoisturecontentuntiladecreaseinmaterialpropertiesoccurs(ataspecificnumberofcycles).Suchatestcouldbeinappropriateduetothenumberofcyclesrequiredtocauseadecreaseinmaterialpropertiessinceproductperformanceissuesoftenariseonlyaftermanyyearsofexposure.Theuseofapreconditioningprocedureisnotintendedtoduplicateexpectedfieldperformance.Ratherthepurposeistoincreasethemoisturecontentoftestmaterialspriortosubjectingtothemtoenvironmentalcycling.Themostimportantaspectofthepreconditioningprocedureisnon-uniformmoisturedistributioninthespecimen.Theheatflowisonedirectionalcausingmoistureflowtowardsthecoldsideresultinginzonesofdrymaterialonthewarmsideandhighmoisturecontentonthecoldside.(Whetherthehighmoisturecontentzoneislocatedrightatthecoldsurfaceofthespecimenoratsomedistancefromthissurfacedependsupontemperatureoscillationandabilityofthecoldsurfacetodryoutwards).Becausethepreconditioningprocedureinvolvesthermalgradient,thispreconditioningprocedureresultsinadistributionofmoisturecontentthatmayoccurunderfieldexposureconditions.However,theresultingmoisturecontentmaydiffersignificantlyfromthatwhichmaybedemonstratedintypicalproductapplications.Thepreconditioningresultsinaccumulationofmoistureinthethermalinsulationresultingfromthesimultaneousexposuretoadifferenceintemperatureandwatervaporpressure.Thistestmethodisnotintendedtoduplicatefieldexposure.Itisintendedtoprovidecomparativeratings.Asexcessiveaccumulationofmoistureinaconstructionsystemmayadverselyaffectitsperformance,thedesignershouldconsiderthepotentialformoistureaccumulationandthepossibleeffectsofthismoistureonthesystemperformance.1.1Thistestmethodisapplicabletopreformedorfieldmanufacturedthermalinsulationproducts,suchasboardstockfoams,rigidfibrousandcompositematerialsmanufacturedwithorwithoutprotectivefacings.SeeNote1Thistestmethodisnotapplicabletohightemperature,reflectiveorloosefillinsulation.Note18212;Iftheproductismanufacturedwithafacer,testproductwithfacerinplace.1.2Thistestmethodinvolvestwostages:preconditioningandenvironmentalcycling.Duringthefirststage,25mm(1in.)thickspecimensareusedtoseparatetwoenvironments.Eachoftheseenvironmentshasaconstantbutdifferenttemperatureandhumiditylevel.Duringtheenvironmentalcyclingstage,specimensalsodividetwoenvironmentsnamelyconstantroomtemperature/humidityononesideandcyclingtemperature/ambientrelativehumidityontheotherside.1.3Thistestmethodmeasurestheabilityoftheproducttomaintainthermalperformanceandcriticalphysicalattributesafterbeingsubjectedtostandardizedexposureconditions.Acomparisonismadebetweenmaterialpropertiesforreferencespecimensstoredinthelaboratoryforthetestperiodandspecimenssubjectedtothetwo-stagetestmethod.Toeliminatetheeffectofmoisturefromthecomparison,thematerialpropertiesofthelattertestspecimensaredeterminedaftertheyhavebeendriedtoconstantweight.Theaveragevaluedeterminedforeachofthetwosetsofspecimensisusedforcomparison.1.4Differentpropertiescanbemeasuredtoassesstheeffectofenvironmentalfactorsonthermalinsulation.Thistestmethodrequiresthatthermalresistancebedeterminedbaseduponanaverageforthreespecimensmeasuredaftercompletingthetest.Secondaryelementsofthistestmethodincludevisualobservationssuchascracking,delaminationorothersurfacedefects,as......
【中国标准分类号】:Q25
【国际标准分类号】:13_020_60
【页数】:7P.;A4
【正文语种】:英语
【原文标准名称】:综合业务数字网(ISDN).数字用户用1号信令系统(DSS1)协议.基本呼叫控制.虚拟专用网(VPN)用"b"业务入口点的增强.第5部分:网络用试验组结构和试验目的(TSS&TP)规范
【标准号】:EN301060-5-1998
【标准状态】:现行
【国别】:
【发布日期】:2000-04
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:无线电装置;传播技术;信令系统;测试套;电信;电信;数据处理;专业网;信息处理;数字的;综合业务数字网络;虚拟的;电路网络
【英文主题词】:Circuitnetworks;Communicationtechnology;Dataprocessing;Digital;Informationprocessing;ISDN;Privatenetworks;Radiosystems;Signallingsystems;Telecommunication;Telecommunications;Testsuites;Virtual
【摘要】:
【中国标准分类号】:M11
【国际标准分类号】:33_080
【页数】:1P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforCharacterizingtheEffectofExposuretoEnvironmentalCyclingonThermalPerformanceofInsulationProducts
【原文标准名称】:暴露于环境热循环对于保温产品的热性能的影响的标准试验方法
【标准号】:ASTMC1512-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:C16.33
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:environmentalcycling;thermalinsulation;Thermalinsulatingmaterials;Boardthermalinsulation;Composites--buildingapplications;Environmentalcontrol/fate;Fieldfabrication;Preformedthermalinsulation;Protectivefacings;Rigidthermalinsulatio
【摘要】:Exposingaspecimentoconditionsofone-directionalenvironmentalcyclingcanincreaseitsmoisturecontentuntiladecreaseinmaterialpropertiesoccurs(ataspecificnumberofcycles).Suchatestcouldbeinappropriateduetothenumberofcyclesrequiredtocauseadecreaseinmaterialpropertiessinceproductperformanceissuesoftenariseonlyaftermanyyearsofexposure.Theuseofapreconditioningprocedureisnotintendedtoduplicateexpectedfieldperformance.Ratherthepurposeistoincreasethemoisturecontentoftestmaterialspriortosubjectingtothemtoenvironmentalcycling.Themostimportantaspectofthepreconditioningprocedureisnon-uniformmoisturedistributioninthespecimen.Theheatflowisonedirectionalcausingmoistureflowtowardsthecoldsideresultinginzonesofdrymaterialonthewarmsideandhighmoisturecontentonthecoldside.(Whetherthehighmoisturecontentzoneislocatedrightatthecoldsurfaceofthespecimenoratsomedistancefromthissurfacedependsupontemperatureoscillationandabilityofthecoldsurfacetodryoutwards).Becausethepreconditioningprocedureinvolvesthermalgradient,thispreconditioningprocedureresultsinadistributionofmoisturecontentthatmayoccurunderfieldexposureconditions.However,theresultingmoisturecontentmaydiffersignificantlyfromthatwhichmaybedemonstratedintypicalproductapplications.Thepreconditioningresultsinaccumulationofmoistureinthethermalinsulationresultingfromthesimultaneousexposuretoadifferenceintemperatureandwatervaporpressure.Thistestmethodisnotintendedtoduplicatefieldexposure.Itisintendedtoprovidecomparativeratings.Asexcessiveaccumulationofmoistureinaconstructionsystemmayadverselyaffectitsperformance,thedesignershouldconsiderthepotentialformoistureaccumulationandthepossibleeffectsofthismoistureonthesystemperformance.1.1Thistestmethodisapplicabletopreformedorfieldmanufacturedthermalinsulationproducts,suchasboardstockfoams,rigidfibrousandcompositematerialsmanufacturedwithorwithoutprotectivefacings.SeeNote1Thistestmethodisnotapplicabletohightemperature,reflectiveorloosefillinsulation.Note18212;Iftheproductismanufacturedwithafacer,testproductwithfacerinplace.1.2Thistestmethodinvolvestwostages:preconditioningandenvironmentalcycling.Duringthefirststage,25mm(1in.)thickspecimensareusedtoseparatetwoenvironments.Eachoftheseenvironmentshasaconstantbutdifferenttemperatureandhumiditylevel.Duringtheenvironmentalcyclingstage,specimensalsodividetwoenvironmentsnamelyconstantroomtemperature/humidityononesideandcyclingtemperature/ambientrelativehumidityontheotherside.1.3Thistestmethodmeasurestheabilityoftheproducttomaintainthermalperformanceandcriticalphysicalattributesafterbeingsubjectedtostandardizedexposureconditions.Acomparisonismadebetweenmaterialpropertiesforreferencespecimensstoredinthelaboratoryforthetestperiodandspecimenssubjectedtothetwo-stagetestmethod.Toeliminatetheeffectofmoisturefromthecomparison,thematerialpropertiesofthelattertestspecimensaredeterminedaftertheyhavebeendriedtoconstantweight.Theaveragevaluedeterminedforeachofthetwosetsofspecimensisusedforcomparison.1.4Differentpropertiescanbemeasuredtoassesstheeffectofenvironmentalfactorsonthermalinsulation.Thistestmethodrequiresthatthermalresistancebedeterminedbaseduponanaverageforthreespecimensmeasuredaftercompletingthetest.Secondaryelementsofthistestmethodincludevisualobservationssuchascracking,delaminationorothersurfacedefects,as......
【中国标准分类号】:Q25
【国际标准分类号】:13_020_60
【页数】:7P.;A4
【正文语种】:英语
