IEC 61643-341-2001 低压浪涌保护装置用元件第341部分：晶闸管浪涌抑制器(TSS)规范

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【英文标准名称】:Componentsforlow-voltagesurgeprotectivedevices-Part341:Specificationforthyristorsurgesuppressors(TSS)
【原文标准名称】:低压浪涌保护装置用元件第341部分：晶闸管浪涌抑制器(TSS)规范
【标准号】:IEC61643-341-2001
【标准状态】:现行
【国别】:国际
【发布日期】:2001-11
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/SC37B
【标准类型】:()
【标准水平】:()
【中文主题词】:低电压;试验;测量;组件;元部件;过电压保护装置;电压保护;低压熔断器;输出测定;性能;规范(验收);电气工程;半导体闸流管;试验条件;定义;定义;额定值
【英文主题词】:Components;Definitions;Diodes;Electricalengineering;Lowvoltage;Low-voltagefuses;Measurement;Outputdetermination;Overvoltageprotection;Performance;Ratings;Specification(approval);Testing;Testingconditions;Thyristorsurgesuppressors;Thyristors;Voltageprotection
【摘要】:ThispartofIEC61643isatestspecificationstandardforthyristorsurgesuppressor(TSS)componentsdesignedtolimitovervoltagesanddivertsurgecurrentsbyclippingandcrowbarringactions.Suchcomponentsareusedintheconstructionofsurgeprotectivedevices,particularlyastheyapplytotelecommunications.Thisstandardcontainsinformationon-terms,lettersymbols,anddefinitions-basicfunctions,configurationsandcomponentstructure-serviceconditionsandfaultmodes-ratingverificationandcharacteristicmeasurement
【中国标准分类号】:K31
【国际标准分类号】:31_080_10
【页数】:123P.;A4
【正文语种】:英语

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上一篇: IEC 61513-2001 核电厂对安全重要的系统的仪器仪表和控制设备系统的一般要求
下一篇: ANSI/IEEE C62.62-2000 低压交流电路电涌保护装置试验规范

【英文标准名称】:StandardPracticeforExtractionofMedicalPlastics
【原文标准名称】:医用塑料制品萃取的标准实施规程
【标准号】:ASTMF619-2003(2008)
【标准状态】:现行
【国别】:美国
【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】:F04.16
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:biocompatibility;extraction;liquids;plastics;specimensize;Biocompatibility;Extractionmethods;Materialextracts(inbiomedicalmaterials);Plasticsurgicaldevices/applications
【摘要】:Theseextractionproceduresaretheinitialpartofseveraltestproceduresusedinthebiocompatibilityscreeningofplasticsusedinmedicaldevices.Thelimitationsoftheresultsobtainedfromthispracticeshouldberecognized.Thechoiceofextractionvehicle,durationofimmersion,andtemperatureofthetestisnecessarilyarbitrary.Thespecificationoftheseconditionsprovidesabasisforstandardizationandservesasaguidetoinvestigatorswishingtocomparetherelativeresistanceofvariousplasticstoextractionvehicles.Correlationoftestresultswiththeactualperformanceorserviceabilityofmaterialsisnecessarilydependentuponthesimilaritybetweenthetestingandend-useconditions(see12.1.2andNote4).Cautionshouldbeexercisedintheunderstandingandintentofthispracticeasfollows:Noallowanceordistinctionismadeforvariablessuchasend-useapplicationanddurationofuse.DecisionsonselectionofteststobedoneshouldbemadebasedonPracticeF748.Thispracticewasoriginallydesignedforusewithnonporous,solidmaterials.Itsapplicationforothermaterials,suchasthosethatareporous,orabsorptive,orresorptive,shouldbeconsideredwithcaution.Considerationshouldbegiventoalteringthespecifiedmaterialtoliquidratiotoallowadditionalliquidtofullyhydratethematerialandadditionalliquidorothermethodstofullysubmergethetestarticle.Additionalproceduresthatfullyremovetheextractliquidfromthetestarticle,suchaspressureorphysicallysqueezingthematerial,shouldalsobeconsideredasappropriate.Althoughnodefinitionsaregiveninthispracticeforthefollowingterms,suchitemsasextractionvehiclesurfacetensionatthespecifiedextractionconditionandplasticspecimenphysicalstructureshouldbetakenintoaccount.TestMethodsD543,D570,andD1239maybeusefulinprovidingsupplementalinformation.1.1Thispracticecoversmethodsofextractionofmedicalplasticsandmaybeapplicabletoothermaterials.Thispracticeidentifiesamethodforobtainingx201C;extractliquidx201D;foruseindeterminingthebiologicalresponseinpreclinicaltesting.Furthertestingofthex201C;extractliquidx201D;isspecifiedinotherASTMstandards.Theextractmayundergochemicalanalysisaspartofthepreclinicalevaluationofthebiologicalresponse,andthematerialafterextractionmayalsobeexamined.1.2Thispracticemaybeusedfor,butisnotlimitedtothefollowingareas:partialevaluationofrawmaterials,auditingmaterialswithinthemanufacturingprocess,andtestingfinalproducts.Thispracticemayalsobeusedasarefereemethodforthemeasurementofextractablesinplasticsusedinmedicaldevices.1.3Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G33
【国际标准分类号】:83_080_01
【页数】:4P.;A4
【正文语种】:英语

Product Code:SAE AS39029/72
Title:Contacts, Electrical Connector, Socket, Removable Solderless Wrappost Termination (For MIL-DTL-38999 Series I, II, III, and IV, MIL-DTL-24308, and MIL-DTL-55302/68, /71, and /75 Connectors)
Issuing Committee:Ae-8c1 Connectors Committee
Scope:No scope available.