SN/T 0560.3-1996 进出口可发性聚苯乙烯树脂发泡剂含量的测定

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基本信息
标准名称:进出口可发性聚苯乙烯树脂发泡剂含量的测定
英文名称:Determination of foaming agent content expandable polystyrene raw materials for import and export
中标分类: 化工 >> 合成材料 >> 合成树脂、塑料
发布部门:中华人民共和国国家进出口商品检验局
发布日期:1996-09-25
实施日期:1997-01-01
首发日期:
作废日期:
主管部门:中华人民共和国国家进出口商品检验局
提出单位:中华人民共和国国家进出口商品检验局
归口单位:中华人民共和国国家进出口商品检验局
起草单位:中华人民共和国山东进出口商品检验局
起草人:王岩、李成德、宁卫群、夏国章
出版日期:1997-01-01
页数:4页
适用范围

本标准规定了进出口可发性聚苯乙烯树脂发泡剂含量的测定。
本标准适用于进出口可发性聚笨乙烯树脂。

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引用标准

SN /T 0560.2- 1996 进出口可发性聚苯乙烯树脂水分含量的测定

所属分类: 化工 合成材料 合成树脂 塑料
下载地址: 点击此处下载
【英文标准名称】:StandardTestMethodforSteady-StateHeatFluxMeasurementsandThermalTransmissionPropertiesbyMeansoftheGuarded-Hot-PlateApparatus
【原文标准名称】:使用单面护热板设备测量稳态热通量和热传导特性的标准试验方法
【标准号】:ASTMC177-2010
【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】:C16.30
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:erroranalysis;guarded-hot-plate;heatflow;heatflux;steady-state;thermalconductivity;thermalresistance;thermaltransmission;thermalconductance;thermaltesting;Erroranalysis;Heatflux;Hotplate/boxmethods;Insulatingmaterials;T
【摘要】:Thistestmethodcoversthemeasurementofheatfluxandassociatedtestconditionsforflatspecimens.Theguarded-hot-plateapparatusisgenerallyusedtomeasuresteady-stateheatfluxthroughmaterialshavingax201C;lowx201D;thermalconductivityandcommonlydenotedasx201C;thermalinsulators.x201D;Acceptablemeasurementaccuracyrequiresaspecimengeometrywithalargeratioofareatothickness.Twospecimensareselectedwiththeirthickness,areas,anddensitiesasidenticalaspossible,andonespecimenisplacedoneachsideoftheguarded-hot-plate.Thefacesofthespecimensoppositetheguarded-hot-plateandprimaryguardareplacedincontactwiththesurfacesofthecoldsurfaceassemblies.Steady-stateheattransmissionthroughthermalinsulatorsisnoteasilymeasured,evenatroomtemperature.Thisisbecauseheatmaybetransmittedthroughaspecimenbyanyorallofthreeseparatemodesofheattransfer(radiation,conduction,andconvection);anyinhomogeneityoranisotropyinthespecimenmayrequirespecialexperimentalprecautionstomeasurethatflowofheat;hoursorevendaysmayberequiredtoachievethethermalsteady-state;noguardingsystemcanbeconstructedtoforcethemeteredheattopassonlythroughthetestareaofinsulationspecimenbeingmeasured;moisturecontentwithinthematerialmaycausetransientbehaviour;andphysicalorchemicalchangeinthematerialwithtimeorenvironmentalconditionmaypermanentlyalterthespecimen.Applicationofthistestmethodondifferenttestinsulationsrequiresthatthedesignermakechoicesinthedesignselectionofmaterialsofconstructionandmeasurementandcontrolsystems.Thustheremaybedifferentdesignsfortheguarded-hot-plateapparatuswhenusedatambientversuscryogenicorhightemperatures.Testthickness,temperaturerange,temperaturedifferencerange,ambientconditionsandothersystemparametersmustalsobeselectedduringthedesignphase.AnnexA1isreferencedtotheuser,whichaddressessuchissuesaslimitationsoftheapparatus,thicknessmeasurementconsiderationsandmeasurementuncertainties,allofwhichmustbeconsideredinthedesignandoperationoftheapparatus.Apparatusconstructedandoperatedinaccordancewiththistestmethodshouldbecapableofaccuratemeasurementsforitsdesignrangeofapplication.Sincethistestmethodisapplicabletoawiderangeofspecimencharacteristics,testconditions,andapparatusdesign,itisimpracticaltogiveanall-inclusivestatementofprecisionandbiasforthetestmethod.Analysisofthespecificapparatususedisrequiredtospecifyaprecisionandbiasforthereportedresults.Forthisreason,conformancewiththetestmethodrequiresthattheusermustestimateandreporttheuncertaintyoftheresultsunderthereportedtestconditions.Qualificationofanewapparatus.Whenanewormodifieddesignisdeveloped,testsshallbeconductedonatleasttwomaterialsofknownthermalstabilityandhavingverifiedorcalibratedpropertiestraceabletoanationalstandardslaboratory.Testsshallbeconductedforatleasttwosetsoftemperatureconditionsthatcovertheoperatingrangefortheapparatus.Ifthedifferencesbetweenthetestresultsandthenationalstandardslaboratorycharacterizationaredeterminedtobesignificant,thenthesourceoftheerrorshall,ifpossible,beidentified.Onlyaftersuccessfulcomparisonwiththecertifiedsamples,cantheapparatusclaimconformancewiththistestmethod.Itisrecommendedthatchecksbecontinuedonaperiodicbasistoconfirmcontinuedconformanceoftheapparatus.Thethermaltransmissionpropertiesofaspecimenofmaterial:mayvaryduetothecom..........
【中国标准分类号】:P31
【国际标准分类号】:17_200_10
【页数】:23P.;A4
【正文语种】:英语


【英文标准名称】:Cabletrunkingsystemsandcableductingsystemsforelectricalinstallations-Part2-3:particularrequirementsforslottedcabletrunkingsystemsintendedforinstallationincabinets.
【原文标准名称】:电器装置用电缆干线装置和管道设备.第2-3部分:小室内设备用有槽电缆干线装置的详细要求
【标准号】:NFC68-123-2010
【标准状态】:现行
【国别】:法国
【发布日期】:2010-05-01
【实施或试行日期】:2010-05-14
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:电缆;分类;定义;设计;尺寸规格;装置用导管;电缆电线;电线;电气工程;电气装置;电性质和电现象;电线管;防火安全性;阻燃性;装置;低电压;作标记;机械性能;安装;性能;规范;开关柜;测试;测试条件;热性能;干线;布线管道
【英文主题词】:Cables;Classification;Definitions;Design;Dimensions;Ductsforinstallations;Electriccables;Electricalcords;Electricalengineering;Electricalinstallations;Electricalpropertiesandphenomena;Electricalwiringducts;Firesafety;Flameresistance;Installations;Lowvoltage;Marking;Mechanicalproperties;Mounting;Properties;Specification;Switchcabinets;Testing;Testingconditions;Thermalproperties;Trunking;Wiringducts
【摘要】:
【中国标准分类号】:K47
【国际标准分类号】:29_120_10
【页数】:21P;A4
【正文语种】:其他