【astm標(biāo)準(zhǔn)】e 1652 - 15_第1頁
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1、Designation:E1652?15StardSpecificationfMagnesiumOxideAluminumOxidePowderCrushableInsulatsUsedintheManufactureofBaseMetalThermocouplesMetalSheathedPlatinumResistanceThermometersNobleMetalThermocouples1Thisstardisissuedund

2、erthefixeddesignationE1652thenumberimmediatelyfollowingthedesignationindicatestheyearofiginaladoptioninthecaseofrevisiontheyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperepsilon()indicatesa

3、neditialchangesincethelastrevisionreapproval.1.Scope1.1Thisspecificationcoverstherequirementsfmagnesiumoxide(MgO)aluminumoxide(Al2O3)powderscrushableinsulatsusedtomanufacturebasemetalthermocouplesmetalsheathedplatinumres

4、istancethermometers(PRTs)noblemetalthermocouplestheirrespectivecables.1.2ThevaluesstatedinSIunitsaretoberegardedasthestard.Thevaluesgiveninparenthesesarefinfmationonly.1.3Thisstarddoesnotpurpttoaddressallofthesafetyconce

5、rnsifanyassociatedwithitsuse.Itistheresponsibilityoftheuserofthisstardtoestablishappropriatesafetyhealthpracticesdeterminetheapplicabilityofregulatylimitationspritouse.2.ReferencedDocuments2.1ASTMStards:2B329TestMethodfA

6、pparentDensityofMetalPowdersCompoundsUsingtheScottVolumeterC809TestMethodsfChemicalMassSpectrometricSpectrochemicalAnalysisofNuclearGradeAluminumOxideAluminumOxideBonCarbideCompositePelletsC832TestMethodofMeasuringTherma

7、lExpansionCreepofRefractiesUnderLoadD2766TestMethodfSpecificHeatofLiquidsSolidsE228TestMethodfLinearThermalExpansionofSolidMaterialsWithaPushRodDilatometerE235SpecificationfThermocouplesSheathedTypeKTypeNfNuclearfOtherHi

8、ghReliabilityApplicationsE344TerminologyRelatingtoThermometryHydrometryE585E585MSpecificationfCompactedMineralInsulatedMetalSheathedBaseMetalThermocoupleCableE1137E1137MSpecificationfIndustrialPlatinumResistanceThermomet

9、ersE1225TestMethodfThermalConductivityofSolidsUsingtheGuardedComparativeLongitudinalHeatFlowTechniqueE2181E2181MSpecificationfCompactedMineralInsulatedMetalSheathedNobleMetalThermocouplesThermocoupleCable3.Terminology3.1

10、ThedefinitionsgiveninTerminologyE344shallapplytothisspecification.4.SignificanceUse4.1Magnesiumoxidealuminumoxideareusedtoelectricallyisolatemechanicallysupptthethermoelementsofathermocouple(seeSpecificationsE235E585E585

11、ME2181E2181M)theconnectingwiresofaPRT(seeSpecificationE1137E1137M)withinametalsheath.Themetalsheathistypicallyreducedindiametertocompacttheoxidepowdercrushableoxideinsulatsaroundthethermoelementswires.4.2Indertobesuitabl

12、efthispurposethematerialsshallmeetcertaincriteriafpurityfmechanicaldimensionalacteristics.Materialthatdoesnotmeetthepuritycriteriamaycauseprematurefailureofthesens.4.3Useofthisspecificationftheprocurementofpowdercrushabl

13、einsulatswillhelptoensurethattheproductobtainedissuitableftheintendedpurpose.4.4Usefulinfmationaboutaluminamagnesiaisgivenintheappendixes.1ThisspecificationisunderthejurisdictionofASTMCommitteeE20onTemperatureMeasurement

14、isthedirectresponsibilityofSubcommitteeE20.04onThermocouples.CurrenteditionapprovedNov.12015.PublishedNovember2015.iginallyapprovedin1995.Lastpreviouseditionapprovedin2014asE1652–14a.DOI:10.1520E165215.2FreferencedASTMst

15、ardsvisittheASTMwebsitewww.astm.gcontactASTMCustomerServiceat.FAnnualBookofASTMStardsvolumeinfmationrefertothestard’sDocumentSummarypageontheASTMwebsite.Copyright?ASTMInternational100BarrHarbDrivePOBoxC700WestConshohocke

16、nPA194282959.UnitedStates1specifiedinTable5theminimummeasuredwebwallshallbenosmallerthan75%ofthemaximummeasuredwebwallunlessotherwiseagreedtobetweenthepurchasermanufacturer.8.3Thecambershallnotexceed0.3%ofthelength.Thein

17、sulatshallbecapableofpassingthrougharigidstraighttubelongerthantheinsulatwithaninsidediameterasspecifiedin6.2.1.Localcamberdefectscausedby“knees““doglegs“shallnotimpedetheionofwire.8.4Thehelicaltwistofholesshallnotexceed

18、2percm(5perin.)ofthelength.8.5Thelengthshallbeasspecifiedin6.1.6withatoleranceof6??0.00mm(0.25??0.00in.).8.6Theendsofeachinsulatshouldbecutsquareshallbeessentiallychipfreeasagreeduponbetweenthesupplierpurchaser.9.TestMet

19、hods9.1ChemicalComposition:9.1.1Wetchemicalanalysisfusioncalimetricanalysisbothcanbeusedfquantitativedeterminationofsilicondioxide(SiO2)ironoxide(Fe2O3)zirconiumoxide(ZrO2)withgravimetricdeterminationfSiO2Fe2O3.TheSiO2fi

20、ltratecanbeusedffurthercalciumoxide(CaO)determination.9.1.2TestMethodC809canbeusedfquantitativeanalysisofelementalimpurities.9.1.3Anymethodusedfquantitativedeterminationshouldhaveadetectionsensitivityofatleast0.001%(mass

21、).9.2Density(Powder)—TestMethodB329canbeusedfdeterminingthedensityofAl2O3MgOpowders.9.3AppendixX5listsotheroptionaltestmethods.10.HlingStagePrecautions10.1Powderscrushableinsulatsshallbeshippedstedincontainersthatprevent

22、contaminationbreakage.Powderscrushableinsulatsshouldbestedinsealedcontainerstopreventcontaminationbymoistureabsption.(SeeAppendixX2.)11.Keywds11.1aluminumoxidecrushableinsulatmagnesiumoxidemineralinsulatedmetalsheathedca

23、bleplatinumresistancethermometerthermocouplebasemetalthermocouplenoblemetalTABLE4OutsideDiameter(O.D.)TolerancesNominalInsulatO.D.O.D.ToleranceOver0.25to1.00mm(0.010to0.039in.)inclusive0.05mm(0.002in.)Over1.00to1.50mm(0.

24、039to0.059in.)inclusive0.08mm(0.003in.)Over1.50to5.00mm(0.059to0.197in.)inclusive0.10mm(0.004in.)Over5.00to8.00mm(0.197to0.315in.)inclusive0.13mm(0.005in.)Over8.00to10.00mm(0.315to0.394in.)inclusive0.15mm(0.006in.)Over10

25、.0mm(0.394in.)1.75%TABLE5HoleDiameterToleranceANominalInsulatHoleDiameterHoleDiameterToleranceOver0.18to1.00mm(0.007to0.039in.)inclusive0.05mm(0.002in.)Over1.00to2.00mm(0.040to0.079in.)inclusive0.08mm(0.003in.)Over2.00to

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