Designation:E1159−15StandardSpecificationforThermocoupleMaterials,Platinum-RhodiumAlloys,andPlatinum1ThisstandardisissuedunderthefixeddesignationE1159;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcoversnon-insulatedplatinum-rhodiumalloys(weightpercentcomposition),andplatinumthermoelementsthatmeettherequirementofSpecificationE230andNISTMonograph175.21.2Thisspecificationdoesnotcoverplatinumandplatinum-rhodiummaterials,thatrequireahigherpuritythanspecifiedin5.1,suchasusedfortemperaturecoefficientofresistance(TCR)measurementsorstandardstypecalibration.Forrequirementsofthissuperiorquality,itissuggestedthatsuppliersofpreciousmetalsbecontacted.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1Thefollowingdocumentsoftheissueinforceonthedateofmaterialpurchaseformapartofthisspecificationtotheextentreferencedherein.2.2ASTMStandards:3B561SpecificationforRefinedPlatinumB616SpecificationforRefinedRhodiumE207TestMethodforThermalEMFTestofSingleThermo-elementMaterialsbyComparisonwithaReferenceTher-moelementofSimilarEMF-TemperaturePropertiesE220TestMethodforCalibrationofThermocouplesByComparisonTechniquesE230SpecificationandTemperature-ElectromotiveForce(EMF)TablesforStandardizedThermocouplesE344TerminologyRelatingtoThermometryandHydrom-etry3.Terminology3.1Definitions—ThedefinitionsgiveninTerminologyE344applytotermsusedinthisspecification.3.2DefinitionsofTermsSpecifictoThisStandard:3.2.1thermocoupletype,n—anominalthermoelectricclassofthermoelementmaterialsthat,usedasapair,haveastandardizedrelationshipandtolerancebetweenrelativeSee-...
