ASTM F1670-2008 防护服使用材料抗人造血液透过特性的标准试验方法

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【英文标准名称】:StandardTestMethodforResistanceofMaterialsUsedinProtectiveClothingtoPenetrationbySyntheticBlood
【原文标准名称】:防护服使用材料抗人造血液透过特性的标准试验方法
【标准号】:ASTMF1670-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:F23.40
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:blood;blood-bornepathogens;bodyfluids;penetration;protectiveclothing;syntheticblood;Blood-bornepathogens;Bloodmaterials/applications;Bodyfluids;Penetrationresistance;Protectiveclothing;Syntheticbloodresistance
【摘要】:ThistestmethodisbasedonTestMethodF903formeasuringresistanceofchemicalprotectiveclothingmaterialstopenetrationbyliquids.Thistestmethodisnormallyusedtoevaluatespecimensfromindividualfinisheditemsofprotectiveclothingandindividualsamplesofmaterialsthatarecandidatesforitemsofprotectiveclothing.Finisheditemsofprotectiveclothingincludegloves,armshields,aprons,gowns,coveralls,hoods,andboots.Thephrasex201C;specimensfromfinisheditemsx201D;encompassesseamedandotherdiscontinuousregionsaswellastheusualcontinuousregionsofprotectiveclothingitems.Medicalprotectiveclothingmaterialsareintendedtobeabarriertoblood,bodyfluids,andotherpotentiallyinfectiousmaterials.Manyfactorscanaffectthewettingandpenetrationcharacteristicsofbodyfluids,suchassurfacetension,viscosity,andpolarityofthefluid,aswellasthestructureandrelativehydrophilicityorhydrophobicityofthematerials.Thesurfacetensionrangeforbloodandbodyfluids(excludingsaliva)isapproximately0.042to0.060N/m(1).Tohelpsimulatethewettingcharacteristicsofbloodandbodyfluids,thesurfacetensionofthesyntheticbloodisadjustedtoapproximatethelowerendofthissurfacetensionrange.Theresultingsurfacetensionofthesyntheticbloodisapproximately0.042x00B1;0.002N/m.Thesyntheticbloodmixtureispreparedwithareddyetoaidinvisualdetectionandathickeningagenttosimulatetheflowcharacteristicsofblood.PartoftheprotocolinProcedureAandBinTable1forexposingtheprotectiveclothingmaterialspecimenswithsyntheticbloodinvolvespressurizationofthetestcellto13.8kPa(2psig).Thishydrostaticpressurehasbeendocumentedtodiscriminatebetweenprotectiveclothingmaterialperformanceandcorrelatewithvisualpenetrationresultsthatareobtainedwithahumanfactorsvalidation(2).Somestudies,however,suggestthatmechanicalpressuresexceeding345kPa(50psig)canoccurduringclinicaluse(3,4).Therefore,itisimportanttounderstandthatthistestmethoddoesnotsimulateallthephysicalstressesandpressuresthatareexertedonprotectiveclothinggarmentsduringactualuse.Thistestmethodisofferedtoidentifythoseprotectiveclothingmaterialsthatwarrantfurtherevaluationwithamicrobiologicalchallenge.Sincethistestmethodusesvisualobservationratherthananalyticalmeasurementsfordeterminationofpenetration,usethistestmethodasapreliminaryevaluationforpossiblepenetrationofbloodandotherbodyfluids.PerformsubsequenttestingwithamicrobiologicalchallengeandanalyticaltechniqueusingTestMethodF1671.Note18212;NoviralresistanceclaimscanbemadebasedonthistestmethodasmaterialscanpassthetestmethodandfailTestMethodF1671.Testingwithoutconsideringdegradationbyphysical,chemical,andthermalstresseswhichcouldnegativelyimpacttheperformanceoftheprotectivebarrier,couldleadtoafalsesenseofsecurity.Considertestswhichassesstheimpactofstorageconditionsandshelflifefordisposableproducts,andtheeffectsoflaunderingandsterilizationforreusableproducts.Theintegrityoftheprotectivebarriercanalsobecompromisedduringusebysucheffectsasflexingandabrasion(5).Itisalsopossiblethatprewettingbycontaminatingmaterialssuchasalcoholandperspirationcanalsocompromisetheintegrityoftheprotectivebarrier.Iftheseconditionsareofconcern,evaluatetheperformanceofprotectiveclothing..........
【中国标准分类号】:C73
【国际标准分类号】:13_340_10
【页数】:6P.;A4
【正文语种】:英语