Designation:D5337−11StandardPracticeforFlowRateAdjustmentofPersonalSamplingPumps1ThisstandardisissuedunderthefixeddesignationD5337;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticedescribesthecalibrationofsamplingpumpscommonlyusedformonitoringpersonalairborneex-posuresinthework-place.1.2Thispracticeincludesproceduresfordescribingprimaryandsecondarycalibrationtechniques.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D1356TerminologyRelatingtoSamplingandAnalysisofAtmospheres2.2NIOSHandOSHADocuments:HSM-99-71-31PersonalSamplingPumpforCharcoalTubes;FinalReport3NIOSH—ManualofAnalyticalMethods,4thed.4OSHA—AnalyticalMethodsManual53.Terminology3.1Fordefinitionsoftermsusedinthispractice,refertoTerminologyD1356.3.2Thetermprimaryflow-ratecalibration,asusedinthispractice,doesnotimplythecalibrationistraceabletoaprimarystandard,unlesstheapparatususedinthecalibration(burets,stop-watches,etc.)hasbeendemonstratedtobetraceabletonationalorinternationalstandards,andthatthistraceabilityisestablishedonaroutine(generallyannual)basis.Traceabilityofcalibrationisstronglyrecommended.4.SummaryofPractice4.1Abubbletubemeterorelectronicnear-frictionlesspumpisusedforprimarycalibrationofpersonalsamplingpumps.Thepracticeisapplicabletosystemsusingairsamplingdevices.Provisionsaremadeforbothmanualandautomatedbubblemeters.4.2Secondarycalibrationproceduresforfieldapplicationsarealsoincludedinthepractice(see7.3).5.SignificanceandUse5.1Mostoccupationalexposureassessmentmethodsre-quiretheuseofpersonalsamplingpumpstocollectairsamplesattypicalworkp...
