SAE AMS3908 Cloth, Aramid (Para) Plain Weave, Thermally Stable
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来源:标准资料网
Product Code:SAE AMS3908
Title:Cloth, Aramid (Para) Plain Weave, Thermally Stable
Issuing Committee:Ams P Polymeric Materials Committee
Scope:This specification covers a thermally stable aramid fabric in the form of cloth. This product has been used typically for flight clothing but usage is not limited to such applications.
【英文标准名称】:Pipesandfittingsmadeofglassfiberreinforcedthermosettingplastics(GRP)--Definitionsoftermsrelatingpressure,includingrelationshipsbetweenthem,andtermsforinstallationandjointing
【原文标准名称】:玻璃纤维增强热固性塑料(GRP)制管道和配件.与压力相关的术语定义、包括术语之间的关系及安装和连接的术语
【标准号】:JISK7030-1997
【标准状态】:现行
【国别】:日本
【发布日期】:1997-10-20
【实施或试行日期】:
【发布单位】:日本工业标准调查会(JP-JISC)
【起草单位】:TechnicalCommitteeonChemicalProducts
【标准类型】:()
【标准水平】:()
【中文主题词】:纺织玻璃纤维;管接头;玻璃纤维;管;加强材料;词汇;塑料
【英文主题词】:reinforcingmaterials;glassfibres;textileglass;pipeconnections;pipes;vocabulary
【摘要】:この規格は,ガラス繊維強化プラスチック(GRP)管及び継手システムの構成部品に適用する,公称圧カ(PN)及び最高許容圧力及び最高使用圧力について定義し,また,同一の部品を使用する際のPNの数値範囲について規定する。また,GRP管?継手の施工及び接合にかかわる用語を定義する。
【中国标准分类号】:G33
【国际标准分类号】:23_040_20;23_040_45
【页数】:6P;A4
【正文语种】:日语
【英文标准名称】:StandardTestMethodforSteady-StateHeatTransferPropertiesofPipeInsulation
【原文标准名称】:管道隔热稳态热传导性能的标准试验方法
【标准号】:ASTMC335/C335M-2010
【标准状态】:现行
【国别】:
【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】:表面导热系数;实验设计;辐射热传导;稳态热传导;热阻;管道热绝缘
【英文主题词】:apparentthermalconductivity;experimentaldesign;radialheattransfer;steadystateheattransfer;thermalresistance;Pipethermalinsulation
【摘要】:Asdeterminedbythistestmethod,thepipeinsulationlinealthermalresistanceorconductance(and,whenapplicable,thethermalresistivityorconductivity)aremeansofcomparinginsulationswhichincludetheeffectsoftheinsulationanditsfituponthepipe,circumferentialandlongitudinaljointing,andvariationsinconstruction,butdonotincludetheeffectsoftheoutersurfaceresistanceorheattransfercoefficient.Theyarethusappropriatewhentheinsulationouter-surfacetemperatureandthepipetemperatureareknownorspecified.However,sincethethermalpropertiesdeterminedbythistestmethodincludetheeffectsoffitandjointing,theyarenottruematerialproperties.Therefore,propertiesdeterminedbythistestmethodaresomewhatdifferentfromthoseobtainedonapparentlysimilarmaterialinflatformusingtheguardedhotplate,TestMethodC177,ortheheatflowmeterapparatus,TestMethodC518.Thepipeinsulationlinealthermaltransferenceincorporatesboththeeffectoftheinsulationanditsfituponthepipeandalsotheeffectofthesurfaceheat-transfercoefficient.Itisappropriatewhentheambientconditionsandthepipetemperatureareknownorspecifiedandthethermaleffectsofthesurfacearetobeincluded.Becauseofthetestconditionrequirementsprescribedinthistestmethod,recognizethatthethermaltransferpropertiesobtainedwillnotnecessarilybethevaluepertainingunderallserviceconditions.Asanexample,thistestmethodprovidesthatthethermalpropertiesshallbeobtainedbytestsondryorconditionedspecimens,whilesuchconditionsarenotnecessarilyrealizedinservice.Theresultsobtainedarestrictlyapplicableonlyfortheconditionsoftestandfortheproductconstructiontested,andmustnotbeappliedwithoutproperadjustmentwhenthematerialisusedatotherconditions,suchasmeantemperaturesthatdifferappreciablyfromthoseofthetest.Withthesequalificationsinmind,thefollowingapply:Forhorizontalorverticalpipesofthesamesizeandtemperature,operatinginthesameambientenvironment,valuesobtainedbythistestmethodcanbeusedforthedirectcomparisonofseveralspecimens,forcomparisontospecificationvalues,andforengineeringdataforestimatingheatlossofactualapplicationsofspecimensidenticaltothosetested(includinganyjacketsorsurfacetreatments).Whenappropriate,correctfortheeffectofendjointsandotherrecurringirregularities(4.4).Whenapplyingtheresultstoinsulationsizesdifferentfromthoseusedinthetest,anappropriatemathematicalanalysisisrequired.Forhomogeneousmaterials,thisconsistsoftheuseofthethermalconductivityorresistivityvalues(correctedforanychangesinmeantemperature)plustheuseofthesurfaceheattransfercoefficientwhentheambienttemperatureisconsidered(forexample,seePracticeC680).Fornonhomogeneousandreflectiveinsulationmaterials,amoredetailedmathematicalmodelisrequiredwhichproperlyaccountsfortheindividualmodesofheattransfer(conduction,convection,radiation)andthevariationofeachmodewithchangingpipesize,insulationthickness,andtemperature.Itisdifficulttomeasurethethermalperformanceofreflectiveinsulationthatincorporateaircavities,sincethegeometryandorientationoftheaircavitiescanaffectconvectiveheattransfer.Whileitisalwaysdesirabletotestfull-lengthpipesections,thisisnotalwayspossibleduetosizelimitationsofexistingpipeinsulationtesters.Ifinsulationsectionsaretestedlessthanfulllength,internalconvectiveheattransferare......
【中国标准分类号】:P94
【国际标准分类号】:91_100_60
【页数】:14P.;A4
【正文语种】:
