ASTM E220-2007a 用比较技术校准热电偶的标准试验方法

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【英文标准名称】:StandardTestMethodforCalibrationofThermocouplesByComparisonTechniques
【原文标准名称】:用比较技术校准热电偶的标准试验方法
【标准号】:ASTME220-2007a
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:E20.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:校准;炉;玻璃温度计;冰;液体;方法;铂;电位滴定法;铑合金;热电偶;温度计;金属线
【英文主题词】:calibration;comparisontechniques;thermocouple;thermoelement;Calibration--thermocouples;Comparisontechniques;Electromotiveforce(EMF);Ice-pointreferencebaths;Platinum-rhodiumalloys;Referencebaths;Referencethermometers;Thermocouples;W
【摘要】:Forusersormanufacturersofthermocouples,thistestmethodprovidesameansofverifyingtheemf-temperaturecharacteristicsofthematerialpriortouse.Thistestmethodcanbeusedtocalibrateathermocoupleforuseasareference,oritcanbeusedtocalibratethermocouplesrepresentingabatchofpurchased,assembledthermocouples.ThistestmethodcanbeusedfortheverificationoftheconformanceofthermocouplematerialstotemperaturetolerancesforspecificationssuchasthetablesinSpecificationE230orotherspecialspecificationsasrequiredforcommercial,military,orresearchapplications.1.1Thistestmethoddescribestheprinciples,apparatus,andprocedureforcalibratingthermocouplesbycomparisonwithareferencethermometer.Calibrationsarecoveredovertemperaturerangesappropriatetotheindividualtypesofthermocoupleswithinanoverallrangefromapproximatelyx2212;195to1700x00B0;C(x2212;320to3100x00B0;F).1.2Ingeneral,thistestmethodisapplicabletounusedthermocouples.Thistestmethoddoesnotapplytousedthermocouplesduetotheirpotentialmaterialinhomogeneityx2014;theeffectsofwhichcannotbeidentifiedorquantifiedbystandardcalibrationtechniques.Thermocoupleswithlarge-diameterthermoelementsandsheathedthermocouplesmayrequirespecialcaretocontrolthermalconductionlosses.1.3Inthistestmethod,allvaluesoftemperaturearebasedontheInternationalTemperatureScaleof1990.SeeGuideE1594.1.4Thisstandardmayinvolvehazardousmaterials,operationsandequipment.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatoryrequirementspriortouse.
【中国标准分类号】:N11
【国际标准分类号】:17_200_20
【页数】:15P.;A4
【正文语种】: