Product Code:SAE AMS3632
Title:Tubing, Plastic, Electrical Insulation, Irradiated Polyvinylidene Fluoride, Semi-Rigid, Heat-Shrinkable, 2 to 1 Shrink Ratio
Issuing Committee:Ams P Polymeric Materials Committee
Scope:This specification covers an irradiated, thermally-stabilized, flame-resistant, modified-polyvinylidene-fluoride plastic in the form of extra-thin-wall tubing. Primarily for use as a semi-rigid, electrical insulation tubing whose diameter can be reduced to a predetermined size by heating to 175 degrees C (347 degrees F) or higher.
【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
基本信息
| 标准名称： | 锑化学分析方法 原子吸收分光光度法测定铅、铁、铜 |
| 中标分类： |
冶金 >>
金属化学分析方法 >>
重金属极其合金分析方法 |
| 替代情况： | 被GB/T 3253.3-2001代替 |
| 发布日期： | |
| 实施日期： | 1983-03-01 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： | |
| 页数： | 5页 |
适用范围
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前言
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目录
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引用标准
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所属分类： 冶金 金属化学分析方法 重金属极其合金分析方法