【英文标准名称】:StandardGuideforUseofFreezing-PointCellsforReferenceTemperatures
【原文标准名称】:基准温度冻结点室的使用
【标准号】:ASTME1502-1998(2003)e1
【标准状态】:现行
【国别】:
【发布日期】:1998
【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】:E20.07
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:冻结点;基准温度;测量、检验和仪器
【英文主题词】:calibration;cryoscopic;constant;fixedpoint;freeze;freezingcurve;reezingplateau;freezingpoint;freezing-pointcell;freexingrange;ITS-90:precision;qualification;recalescence;referencematerial;referencetemperature;resistancethermometer
【摘要】:1.1Thisguidedescribestheessentialfeaturesoffreezing-pointcellsandauxiliaryapparatus,andthetechniquesrequiredtorealizefreezingpointsinthetemperaturerangefrom29to1085176;C.1.2Detaileddesignandconstructionarenotaddressedinthisguide.1.3Thisguideisintendedtodescribegoodpracticeandestablishuniformproceduresfortherealizationoffreezingpoints.1.4Thisguideemphasizesprinciples.Theemphasisonprinciplesisintendedtoaidtheuserinevaluatingcells,inimprovingtechniqueforusingcells,andinestablishingproceduresforspecificapplications.1.5Forthepurposesofthisguide,theuseoffreezing-pointcellsfortheaccuratecalibrationofthermometersisrestrictedtoimmersion-typethermometersthat,wheninsertedintothereentrantwellofthecell,(1)indicatethetemperatureonlyoftheisothermalregionofthewell,and(2)donotsignificantlyalterthetemperatureoftheisothermalregionofthewellbyheattransfer.
【中国标准分类号】:N60
【国际标准分类号】:
【页数】:10P.;A4
【正文语种】: