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ASTM E 515 – 95.pdf


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ASTM E 515 – 95.pdf
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Designation:E515–95(Reapproved2000)StandardTestMethodforLeaksUsingBubbleEmissionTechniques1ThisstandardisissuedunderthefixeddesignationE515;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.1.ScopeMIL-L-poundOxygenSys-61.1Thistestmethodcoversproceduresfordetectingortemslocatingleaks,orboth,bybubbleemissiontechniques.A3.Terminologyquantitativemeasureisnotpractical.Thenormallimitofsensitivityforthistestmethodis4.5310−10mol/s(1310−53.1Definitions—Fordefinitionsoftermsusedinthisstan-Stdcm3/s).2dard,seeTerminologyE1316,SectionE.1.2Twotechniquesaredescribed:4.SummaryofTestMethod1.2.1Immersiontechnique,and1.2.2Liquidapplicationtechnique.4.1ThebasicprincipleofthismethodconsistsofcreatingapressuredifferentialacrossaleakandobservingforbubblesinNOTE1—AdditionalinformationisavailableinASMEBoilerandaliquidmediumlocatedonthelowpressureside.ThePressureVesselCode,SectionV,Article10-LeakTesting,andGuidesensitivityofthemethodisdependentonthepressurediffer-E479.ential,thegasusedtocreatethedifferential,andtheliquidused1.3Thisstandarddoesnotpurporttoaddressthesafetyfortesting.Aslongasthepressuredifferentialcanbemain-concerns,ifany,associatedwithitsuse.Itistheresponsibilitytainedacrosstheareatobetested,thismethodcanbeused.heapplicabilityofregulatory5.PersonnelQualificationlimitationspriortouse.5.mendedthatpersonnelperformingleaktest-ingattendadedicatedtrainingcourseonthesubjectandpass2.ReferencedDocumentsawrittenexamination.Thetrainingcourseshouldbeappropri-2.1ASTMStandards:mendedE479GuideforPreparationofaLeakTestingSpecifica-PracticeNo.SNT-TC-1AoftheAmericanSocietyforNonde-tion3structiveTestingorANSI/ASNTStandardCP-189.E1316TerminologyforNondestructiveExaminations32.2OtherDocuments:6.SignificanceandUseSNT-TC-mendedPracticeforPersonnelQualifi-6.1TheimmersiontechniqueisfrequentlyusedtolocatecationandCertificationinNondestructiveTesting4leaksinsealedcontainers.LeaksinacontainercanbeseenANSI/ASNTCP-189ASNTStandardforQualificationandindependently.LeaksizecanbeapproximatedbythesizeofCertificationofNondestructiveTestingPersonnel4thebubble.ItisnotsuitableformeasurementoftotalsystemASMEBoilerandPressureVesselCode,SectionV,Articleleakage.10-LeakTesting56.po-2.3MilitaryStandard:nentsandsystemsthatcannoteasilybeimmersedandisusedtorapidlylocateleaks.Anapproximationofleaksizecanbemadebasedonthetypeofbubblesformed,mitteeE-7onNon-mitteeE07.08onnotsuitableformeasuringleakagerate.ItcanbeusedwithaLeakTesting.vacuumboxtotestvesselswhichcannotbepressurizedorCurrenteditionapprovedSept.10,1995.PublishedNovember1995.essible.publishedasE515–74.LastpreviouseditionE515–94.2Thegastemperatureisreferencedto0°C.Toconverttoanothergasreferencetemperature,Tref,multiplytheleakrateby(Tref+273)/273.3AnnualBookofASTMStandards,Vol03.03.4Availablef 内容来自淘豆网www.taodocs.com转载请标明出处.
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