BS EN 15701-2009 塑料.建筑设备和工业装置用隔热产品用热塑性套管要求和试验方法
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【英文标准名称】:Plastics-Thermoplasticjacketsforinsulationproductsforbuildingequipmentandindustrialinstallations-Requirementsandtestmethods
【原文标准名称】:塑料.建筑设备和工业装置用隔热产品用热塑性套管要求和试验方法
【标准号】:BSEN15701-2009
【标准状态】:现行
【国别】:英国
【发布日期】:2009-04-30
【实施或试行日期】:2009-04-30
【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】:基本家用设备;装箱;定义;耐久性;定义(术语);尺寸偏差;尺寸稳定性;尺寸;尺寸规格;绝缘材料;处理;惰性气体铠装电弧焊;作标记;材料;最小厚度;模制件;云母板;包装件;塑料;塑料外壳;使用设施;规范(验收);试验;测试;痕量元素分析;导热性;热塑性聚合物
【英文主题词】:Basicdomesticfacilities;Casing;Definitions;Dimensionaldeviations;Dimensionalstability;Dimensions;Insulatingmaterials;Marking;Materials;Minimumthicknesses;Mouldedparts;Packages;Plastics;Plasticssheaths;Serviceinstallations;Specification(approval);Testing;Thermalconductivity;Thermoplasticpolymers
【摘要】:ThisEuropeanStandardspecifiestherequirementsforthermoplasticcladdingforinsulationproductsforbuildingequipmentandindustrialinstallationsandthetestmethodstobeused.TheEuropeanStandarddoesnotapplytosystemsinwhichthecladdinghasalreadybeensecurelyfixedoverthewholesurfaceofaninsulatingmaterialinsitu.
【中国标准分类号】:Q25
【国际标准分类号】:83_140_99
【页数】:12P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodsforChemicalAnalysisofThermalInsulationMaterialsforLeachableChloride,Fluoride,Silicate,andSodiumIons
【原文标准名称】:可浸出氯化物,氟化物,硅酸盐及钠离子用绝热材料的化学分析的标准试验方法
【标准号】:ASTMC871-2008ae1
【标准状态】:现行
【国别】:
【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】:C16.31
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:化学分析;氯化物;氟化物;硅酸盐;钠;隔热
【英文主题词】:chemicalanalysis;chloride;fluoride;silicate;sodium;thermalinsulation
【摘要】:Researchhasdemonstratedthatinadditiontothehalideionchloride;fluorideions,whendepositedandconcentratedonthesurfaceofausteniticstainlesssteel,cancontributetoexternalstresscorrosioncracking(ESCC)intheabsenceofinhibitingions.TwowidelyusedinsulationspecificationsthatarespecifictoESCCallowtheuseofthesameTestMethodsC692andC871forevaluationofinsulationmaterials.Bothspecificationsrequirefluorideionstobeincludedwithchlorideionswhenevaluatingtheextractableions.Chlorides(andfluorides)canbeconstituentsoftheinsulatingmaterialoroftheenvironment,orboth.Moistureintheinsulationorfromtheenvironmentcancausechlorides(andfluorides)tomigratethroughtheinsulationandconcentrateatthehotstainlesssteelsurface.Thepresenceofsodiumandsilicateionsintheinsulationhasbeenfoundtoinhibitexternalstresscorrosioncrackingcausedbychloride(andfluoride)ions,whethersuchionscomefromtheinsulationitselforfromexternalsources.Furthermore,iftheratioofsodiumandsilicateionstochloride(andfluoride)ionsisinacertainproportionintheinsulation,externalstresscorrosioncrackingasaresultofthepresenceofchloride(andfluoride)intheinsulationwillbepreventedoratleastmitigated(seealsoSpecificationC795).1.1Thesetestmethodscoverlaboratoryproceduresforthedeterminationofwater-leachablechloride,fluoride,silicate,andsodiumionsinthermalinsulationmaterialsinthepartspermillionrange.1.2Selectionofoneofthetestmethodslistedforeachoftheionicdeterminationsrequiredshallbemadeonthebasisoflaboratorycapabilityandavailabilityoftherequiredequipmentandappropriatenesstotheconcentrationoftheionintheextractionsolution.1.3Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:
【国际标准分类号】:91_100_60
【页数】:5P.;A4
【正文语种】:
【英文标准名称】:StandardTestMethodofMeasurementofCommon-EmitterD-CCurrentGainofJunctionTransistors
【原文标准名称】:结型晶体管共射极直流增益测量的标准试验方法
【标准号】:ASTMF528-1999(2005)
【标准状态】:作废
【国别】:
【发布日期】:1999
【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】:F01.11
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:晶体管;结型晶体管;方法;结型晶体管共射极直流增益;半导体电流测量
【英文主题词】:common-emitterd-ccurrentgain;currentgain;hFE;junctiontransistors;transistortest
【摘要】:Thecurrentgainofatransistorisbasictoitsoperationandisitssinglemostimportantparameter.Ionizingradiation,thatis,gammaradiationduetoanuclearburst,willdegradethecurrentgainduetolifetimedamageinthebulkmaterial.Degradationofgainwillbegreatestimmediatelyfollowingaburstofionizingradiationandthegainwillrapidlyrecovertoaquasisteady-statevalue.Defectannealingmaycontinueforweeksbutusuallythecurrentgainrecoveryissmallornegligible.Thismethodprovidesaprocedurethatdoesnotrequirespecial-purposetestequipment.Thismethodissuitableforuseforspecificationacceptance,serviceevaluation,ormanufacturingcontrol.1.1Thistestmethodcoversthemeasurementofcommon-emitterd-ccurrentgain(forward,hFE,orinverted,hFEI)ofbipolartransistors,forwhichthecollector-emitterleakagecurrent,ICEO,islessthan10%ofthecollectorcurrent,IC,atwhichthemeasurementistobemade,andforwhichtheshuntleakagecurrentinthebasecircuitislessthan10%ofthebasecurrentrequired.1.2Thistestmethodissuitableformeasurementofcommon-emitterd-ccurrentgainatasinglegivenvalueoftesttransistorcollectorcurrentoroveragivenrangeofcollectorcurrents(forexample,overtherangeofthetransistortobetested).1.2.1Thenominalrangesofcollectorcurrentoverwhichthethreetestcircuitsareintendedtobeusedareasfollows:1.2.1.1Circuit1,lessthan100[mu]A,1.2.1.2Circuit2,from100[mu]Ato100mA,and1.2.1.3Circuit3,greaterthan100mA.1.3Thistestmethodincorporatesteststodetermineifthepowerdissipatedinthetransistorislowenoughthatthetemperatureofthejunctionisapproximatelythesameastheambienttemperature.1.4ThevaluesstatedinInternationalSystemofUnits(SI)aretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityofwhoeverusesthisstandardtoconsultandestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:L42
【国际标准分类号】:31_080_30
【页数】:7P.;A4
【正文语种】: