Designation:E2593−12StandardGuideforAccuracyVerificationofIndustrialPlatinumResistanceThermometers1ThisstandardisissuedunderthefixeddesignationE2593;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisguidedescribesthetechniquesandapparatusre-quiredfortheaccuracyverificationofindustrialplatinumresistancethermometersconstructedinaccordancewithSpeci-ficationE1137/E1137Mandtheevaluationofcalibrationuncertainties.Theproceduresdescribedapplyovertherangeof–200°Cto650°C.1.2Thisguidedoesnotintendtodescribeproceduresnecessaryforthecalibrationofplatinumresistancethermom-etersusedascalibrationstandardsorStandardPlatinumResistanceThermometers.Consequently,calibrationofthesetypesofinstrumentsisoutsidethescopeofthisguide.1.3Industrialplatinumresistancethermometersareavail-ableinmanystylesandconfigurations.Thisguidedoesnotpurporttodeterminethesuitabilityofanyparticulardesign,style,orconfigurationforcalibrationoveradesiredtempera-turerange.1.4TheevaluationofuncertaintiesisbaseduponcurrentinternationalpracticesasdescribedinISO/TAG4/WG3“GuidetotheEvaluationofUncertaintyinMeasurement”andANSI/NCSLZ540-2-1997“U.S.GuidetotheExpressionofUncertaintyinMeasurement.”1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2E344TerminologyRelatingtoThermometryandHydrom-etryE563PracticeforPreparationandUseofanIce-PointBathasaReferenceTemperatureE644TestMethodsforTestingIndustrialResistanceTher-mometersE1137/E1137MSpecificationforIndustrialPlatinumResis-tanceThermometersE1502GuideforUseofFixed-PointCellsforReferenceTemperaturesE1750GuideforUseofWaterT...
