ASTM G175-2003 医疗和应急设备用氧气调节器的引燃敏感性和耐故障性评价的标准试验方法
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【英文标准名称】:StandardTestMethodforEvaluatingtheIgnitionSensitivityandFaultToleranceofOxygenRegulatorsUsedforMedicalandEmergencyApplications
【原文标准名称】:医疗和应急设备用氧气调节器的引燃敏感性和耐故障性评价的标准试验方法
【标准号】:ASTMG175-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:G04.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:faulttolerance;forcedignition;ignition;ignitionsensitivity;impacttest;medicaloxygenregulator;oxygenpressureshocktest;oxygenregulator;promotedignition
【摘要】:Thistestmethodcomprisestwophasesandisusedtoevaluatetheignitionsensitivityandfaulttoleranceofoxygenregulatorsusedformedicalandemergencyapplications.Phase1:OxygenPressureShockTest8212;Theobjectiveofthistestphaseistodeterminewhethertheheatfromoxygenpressureshockswillresultinburnoutorvisibleheatdamagetotheinternalpartsoftheregulator.Phase1isperformedaccordingtoISO10524,Section11.8.1.4.2.1ThecriteriaforanacceptabletestarespecifiedinISO10524,Section11.8.1.4.2.2Thepass/failcriteriaforaregulatorarespecifiedinISO10524,Section11.8.1.Phase2:RegulatorInletPromotedIgnitionTest8212;Theobjectiveofthistestphaseistodetermineifanignitioneventupstreamoftheregulatorinletfilterwillresultinsustainedcombustionandburnoutoftheregulator.4.3.1Thecriterionforanacceptabletestiseither,(1)failureoftheregulator,whichisdefinedasthebreachofthepressurizedregulatorcomponent(burnout)andejectionofmoltenorburningmetaloranyinternalpartsfromtheregulator,or(2)iftheregulatordoesnotfail,consumptionofatleast90%oftheignitionpillasdeterminedbyvisualinspectionormassdetermination.Failureoftheregulatoratthesealringdoesnotconstituteanacceptabletest.4.3.2Momentary(lessthan1s)ejectionofflamethroughnormalventpaths,withsparksthatlooksimilartothosefrommetalappliedtoagrindingwheel,isacceptable.1.1Thisstandarddescribesatestmethodforevaluatingtheignitionsensitivityandfaulttoleranceofoxygenregulatorsusedformedicalandemergencyapplications.1.2Forthepurposeofthisstandard,apressureregulatorisadevice,alsocalledapressure-reducingvalve,thatisintendedformedicaloremergencypurposesandthatisusedtoconvertamedicaloremergencygaspressurefromahigh,variablepressuretoalower,moreconstantworkingpressure[21CFR868.2700(a)].1.3ThisstandardappliesonlytooxygenregulatorsusedformedicalandemergencyapplicationsthataredesignedandfittedwithCGA540inletconnectionsorCGA870pin-indexadapters(CGAV-1).1.4Thisstandardprovidesanevaluationtoolfordeterminingthefaulttoleranceofoxygenregulatorsusedformedicalandemergencyapplications.Afaulttolerantregulatorisdefinedas(1)havingalowprobabilityofignitionasevaluatedbyrapidpressurizationtesting,and(2)havingalowconsequenceofignitionasevaluatedbyforcedignitiontesting.1.5Thisstandardisnotadesignstandard;however,itcanbeusedtoaiddesignersindesigningandevaluatingthesafeperformanceandfaulttolerancecapabilityofoxygenregulatorsusedformedicalandemergencyapplications(G128).Note18212;Itisessentialthatariskassessmentbecarriedoutonbreathinggassystems,especiallyconcerningoxygencompatibility(refertoASTMG63andG94)andtoxicproductformationduetoignitionordecompositionofnonmetallicmaterialsasweighedagainsttheriskofflammability(refertoISO15001.2).SeeAppendixX1andX2.1fordetails.1.6Thisstandardisalsousedtoaidthoseresponsibleforpurchasingorusingoxygenregulatorsusedformedicalandemergencyapplicationsinensuringthatselectedregulatorsaretolerantoftheignitionmechanismsthatarenormallyactiveinoxygensystems.1.7Thisstandarddoesnotpurporttoaddresstheignitionsensitivityandfaulttoleranceofanoxygenregulatorcausedbycontaminationduringfieldmaintenanceoruse.Regulatordesignersandmanufacturersshouldprovi......
【中国标准分类号】:C47
【国际标准分类号】:11_040_10
【页数】:14P.;A4
【正文语种】:
【原文标准名称】:医疗和应急设备用氧气调节器的引燃敏感性和耐故障性评价的标准试验方法
【标准号】:ASTMG175-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:G04.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:faulttolerance;forcedignition;ignition;ignitionsensitivity;impacttest;medicaloxygenregulator;oxygenpressureshocktest;oxygenregulator;promotedignition
【摘要】:Thistestmethodcomprisestwophasesandisusedtoevaluatetheignitionsensitivityandfaulttoleranceofoxygenregulatorsusedformedicalandemergencyapplications.Phase1:OxygenPressureShockTest8212;Theobjectiveofthistestphaseistodeterminewhethertheheatfromoxygenpressureshockswillresultinburnoutorvisibleheatdamagetotheinternalpartsoftheregulator.Phase1isperformedaccordingtoISO10524,Section11.8.1.4.2.1ThecriteriaforanacceptabletestarespecifiedinISO10524,Section11.8.1.4.2.2Thepass/failcriteriaforaregulatorarespecifiedinISO10524,Section11.8.1.Phase2:RegulatorInletPromotedIgnitionTest8212;Theobjectiveofthistestphaseistodetermineifanignitioneventupstreamoftheregulatorinletfilterwillresultinsustainedcombustionandburnoutoftheregulator.4.3.1Thecriterionforanacceptabletestiseither,(1)failureoftheregulator,whichisdefinedasthebreachofthepressurizedregulatorcomponent(burnout)andejectionofmoltenorburningmetaloranyinternalpartsfromtheregulator,or(2)iftheregulatordoesnotfail,consumptionofatleast90%oftheignitionpillasdeterminedbyvisualinspectionormassdetermination.Failureoftheregulatoratthesealringdoesnotconstituteanacceptabletest.4.3.2Momentary(lessthan1s)ejectionofflamethroughnormalventpaths,withsparksthatlooksimilartothosefrommetalappliedtoagrindingwheel,isacceptable.1.1Thisstandarddescribesatestmethodforevaluatingtheignitionsensitivityandfaulttoleranceofoxygenregulatorsusedformedicalandemergencyapplications.1.2Forthepurposeofthisstandard,apressureregulatorisadevice,alsocalledapressure-reducingvalve,thatisintendedformedicaloremergencypurposesandthatisusedtoconvertamedicaloremergencygaspressurefromahigh,variablepressuretoalower,moreconstantworkingpressure[21CFR868.2700(a)].1.3ThisstandardappliesonlytooxygenregulatorsusedformedicalandemergencyapplicationsthataredesignedandfittedwithCGA540inletconnectionsorCGA870pin-indexadapters(CGAV-1).1.4Thisstandardprovidesanevaluationtoolfordeterminingthefaulttoleranceofoxygenregulatorsusedformedicalandemergencyapplications.Afaulttolerantregulatorisdefinedas(1)havingalowprobabilityofignitionasevaluatedbyrapidpressurizationtesting,and(2)havingalowconsequenceofignitionasevaluatedbyforcedignitiontesting.1.5Thisstandardisnotadesignstandard;however,itcanbeusedtoaiddesignersindesigningandevaluatingthesafeperformanceandfaulttolerancecapabilityofoxygenregulatorsusedformedicalandemergencyapplications(G128).Note18212;Itisessentialthatariskassessmentbecarriedoutonbreathinggassystems,especiallyconcerningoxygencompatibility(refertoASTMG63andG94)andtoxicproductformationduetoignitionordecompositionofnonmetallicmaterialsasweighedagainsttheriskofflammability(refertoISO15001.2).SeeAppendixX1andX2.1fordetails.1.6Thisstandardisalsousedtoaidthoseresponsibleforpurchasingorusingoxygenregulatorsusedformedicalandemergencyapplicationsinensuringthatselectedregulatorsaretolerantoftheignitionmechanismsthatarenormallyactiveinoxygensystems.1.7Thisstandarddoesnotpurporttoaddresstheignitionsensitivityandfaulttoleranceofanoxygenregulatorcausedbycontaminationduringfieldmaintenanceoruse.Regulatordesignersandmanufacturersshouldprovi......
【中国标准分类号】:C47
【国际标准分类号】:11_040_10
【页数】:14P.;A4
【正文语种】:
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