【英文标准名称】:StandardTestMethodforDensityandDimensionsofPreformedPipe-Covering-TypeThermalInsulation
【原文标准名称】:预制包覆管道用隔热材料密度和尺寸的标准试验方法
【标准号】:ASTMC302-1995(2007)
【标准状态】:现行
【国别】:
【发布日期】:1995
【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】:C16.32
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:预制配件;覆层;隔热;建筑;管道覆层;密度;试验
【英文主题词】:pipeinsulationdensity;pipeinsulationdimensions;thermalinsulation
【摘要】:Densitymeasurementsofpreformedpipeinsulationareusefulindeterminingcomplianceofaproductwithspecificationlimitsandinprovidingarelativegageofproductweights.Foranyonekindofinsulationsomeimportantphysicalandmechanicalproperties,suchasthermalconductivity,heatcapacity,strength,etc.,bearaspecificrelationshipwithitsdensity;however,onadensitybasis,thesepropertiesarenotdirectlycomparablewiththoseforotherkindsofmaterial.Thephysicaldimensionsofpreformedpipeinsulationareimportantquantitiesnotonlyfordeterminingthedensityofthepipeinsulationbutalsofordeterminingtheconformancetospecifications.Theuseofmultilayerinsulationsiscommon,andthedimensionsarenecessarytoensurepropernestingofthelayers.1.1Thistestmethodcoversthedeterminationofthedimensionsanddensity,afterconditioning,ofpreformedpipeinsulation.1.1.1ProcedureAisapplicabletosectionsofone-piecepipecoveringortosectionsofsegmentalpipecoveringthatcanbejoinedtogetherconcentricallyandmeasuredasone-piece.1.1.2ProcedureBisapplicabletosegmentalpipecoveringwhereeachsectionofmaterialismeasured.1.1.3ProcedureCisapplicabletosectionsofone-piecepipecovering,suchassoftfoamormineralwoolmaterials,whereitispossibletopenetratethematerial.1.2Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q25
【国际标准分类号】:27_220
【页数】:3P.;A4
【正文语种】: