【英文标准名称】:StandardSpecificationandTemperature-ElectromotiveForce(EMF)TablesforStandardizedThermocouples
【原文标准名称】:标准化热电偶用标准规范和温度-电动势(EMF)图表
【标准号】:ASTME230-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【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】:(Specification)
【标准水平】:()
【中文主题词】:温度;温度测量;表;热电偶;温差电器件
【英文主题词】:emfcomputation;compensatingextensionwire;inversepolynomial;polynomialcoefficient;referencetables;thermocouple;thermocoupleextensionwire;thermoelement;uppertemperaturelimit
【摘要】:1.1Thisspecificationcontainsreferencetables(Tables8-23)thatgivetemperature-electromotiveforce(emf)relationshipsforTypesB,E,J,K,N,R,S,andTthermocouples.Thesearethethermocoupletypesmostcommonlyusedinindustry.1.2Alsoincludedarelistsofstandardandspecialtolerancesoninitialvaluesofemfversustemperatureforthermocouples(Table1),thermocoupleextensionwires(Table2),andcompensatingextensionwiresforthermocouples(Table3).1.3Tables4-5,includedherein,givedataoninsulationcolorcodingforthermocoupleandthermocoupleextensionwiresascustomarilyusedintheUnitedStates.1.4Recommendationsregardinguppertemperaturelimitsforthethermocoupletypesreferredtoin1.1aregiveninTable6.1.5Tables24-43givetemperature-emfdataforsingle-legthermoelementsreferencedtoplatinum(NISTPt67).ThetablesincludevaluesforTypesBP,BN,JP,JN,KP(sameasEP),KN,NP,NN,TP,andTN(sameasEN).1.6TablesforTypesRP,RN,SP,andSNthermoelementsarenotincludedsince,nominally,Tables18-21representthethermoelectricpropertiesofTypeRPandSPthermoelementsreferencedtopureplatinum.1.7PolynomialcoefficientsthatmaybeusedforcomputationofthermocoupleemfasafunctionoftemperaturearegiveninTable7.Coefficientsfortheemfofeachthermocouplepairaswellasfortheemfofindividualthermoelementsversusplatinumareincluded.1.8CoefficientsforsetsofinversepolynomialsaregiveninTable44.Thesemaybeusedforcomputingacloseapproximationoftemperature(oC)asafunctionofthermocoupleemf.Inversefunctionsareprovidedonlyforthermocouplepairsandarevalidonlyovertheemfrangesspecified.1.9Thisspecificationisintendedtodefinethethermoelectricpropertiesofmaterialsthatconformtotherelationshipspresentedinthetablesofthisstandardandbeartheletterdesignationscontainedherein.Topicssuchasorderinginformation,physicalandmechanicalproperties,workmanship,testing,andmarkingarenotaddressedinthisspecification.TheuserisreferredtospecificstandardssuchasSpecificationsE235,E574,E585,E608,E1159,orE1223,asappropriate,forguidanceintheseareas.1.10Thetemperature-emfdatainthisspecificationareintendedforindustrialandlaboratoryuse.
【中国标准分类号】:N11
【国际标准分类号】:17_200_20
【页数】:192P.;A4
【正文语种】:
基本信息
| 标准名称： | 液体物料定量灌装机试行检定规程 |
| 英文名称： | Quantitative Filling Machine for Liquid State Material |
| 中标分类： |
综合 >>
计量 >>
力学计量 |
| 替代情况： | 被JJG 687-2008代替 |
| 发布日期： | |
| 实施日期： | 2003-11-12 |
| 首发日期： | |
| 作废日期： | 2009-03-27 |
| 出版社： | 中国计量出版社 |
| 出版日期： | 2003-11-12 |
| 页数： | 14页 |
适用范围
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所属分类： 综合 计量 力学计量