NF C93-780-2-7-2002 印制电路板和其它互连结构件用材料.第2-7部分:包覆和非包覆的增强基材.规定易燃性的环氧编织E型玻璃纤维层压包铜薄板材(垂直燃烧试验)
时间:2024-05-18 07:43:40 来源: 标准资料网 作者：标准资料网 阅读：8340
【英文标准名称】:Materialsforprintedboardsandotherinterconnectingstructures-Part2-7:reinforcedbasematerialscladandunclad-EpoxidewovenE-glasslaminatedsheetofdefinedflammability(verticalburningtest),copper-clad.
【原文标准名称】:印制电路板和其它互连结构件用材料.第2-7部分:包覆和非包覆的增强基材.规定易燃性的环氧编织E型玻璃纤维层压包铜薄板材(垂直燃烧试验)
【标准号】:NFC93-780-2-7-2002
【标准状态】:现行
【国别】:法国
【发布日期】:2002-12-01
【实施或试行日期】:2002-12-20
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:铜;质量保证;电气工程;基底材料;可燃性试验;检验;增强的材料;导电材料;导电体;可燃性;印制电路板;E型玻璃纤维;电导性;环氧衍生物;尺寸;特性;互连结构;印制电路;规范;覆铜的;分规范;薄板材;技术数据单;包装件;电子设备及元件
【英文主题词】:Basematerials;Combustibility;Combustibilitytests;Conductivematerials;Conductivity;Copper;Copper-clad;Dimensions;E-glass;Electricconductors;Electricalengineering;Electronicequipmentandcomponents;Epoxides;Inspection;Interconnectionstructures;Packages;Printedcircuits;Printed-circuitboards;Properties;Qualityassurance;Reinforcedmaterials;Sectionalspecification;Sheets;Specification;Technicaldatasheets
【摘要】:
【中国标准分类号】:L30
【国际标准分类号】:13_220_40;31_180
【页数】:25P;A4
【正文语种】:其他
【英文标准名称】:StandardPracticeforQualificationofRadioscopicSystems
【原文标准名称】:X射线透视系统鉴定的标准实施规程
【标准号】:ASTME1411-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:E07.01
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:contrastsensitivity;duplexwiregage;edgesharpening;focaldetectordistance(FDD);focalobjectdistance(FOD);focalspotsize;imageprocessor;imagequalityindicator;imager;line-pairgage;magnification;nearreal-timeradioscopy;no
【摘要】:Aswithconventionalradiography,radioscopicexaminationisbroadlyapplicabletothemanymaterialsandobjectconfigurationswhichmaybepenetratedwithX-raysorgammarays.Thehighdegreeofvariationinarchitectureandperformanceamongradioscopicsystemsduetocomponentselection,physicalarrangementandobjectvariables,makesitnecessarytoestablishthelevelofperformancewhichtheselectedradioscopicsystemiscapableofachievinginspecificapplications.Themanufactureroftheradioscopicsystem,aswellastheuser,requireacommonbasisfordeterminingtheperformanceleveloftheradioscopicsystem.Thispracticedoesnotpurporttoprovideamethodtomeasuretheperformanceofindividualradioscopicsystemcomponentswhicharemanufacturedaccordingtoavarietyofindustrystandards.Thispracticecoversmeasurementofthecombinedperformanceoftheradioscopicsystemelementswhenoperatedtogetherasafunctionalradioscopicsystem.Thispracticeaddressestheperformanceofradioscopicsystemsinthestaticmodeonly.Radioscopycanalsobeadynamic,real-timeornearreal-timeexaminationtechniquewhichcanallowtest-partmotionaswellasparameterchangesduringtheradioscopicexaminationprocess.Theuseofthispracticeisnotintendedtobelimitingconcerningtheuseofthedynamicpropertiesofradioscopy.Usersofradioscopyarecautionedthatthedynamicaspectsofradioscopycanhavebeneficialaswellasdetrimentaleffectsuponsystemperformanceandmustbeevaluatedonacase-by-casebasis.Thisqualificationprocedureisintendedtobenchmarkradioscopicsystemperformanceunderselectedoperatingconditionstoprovideameasureofsystemperformance.Qualificationshallnotrestrictoperationoftheradioscopicsystematotherradioscopicexaminationparametersettingswhichmayprovideimprovedperformanceonactualexaminationobjects.Radioscopicsystemperformancemeasuredpursuanttothispracticedoesnotguaranteethelevelofperformancewhichmayberealizedinactualoperation.Theeffectsofobject-geometryandorientation-generatedscatteredradiationcannotbereliablypredictedbyastandardizedexamination.Allradioscopicsystemsageanddegradeinperformanceasafunctionoftime.Maintenanceandoperatoradjustments,ifnotcorrectlymade,canadverselyaffecttheperformanceofradioscopicsystems.Theperformanceoftheradioscopicsystemoperatorinmanualandsemi-automaticradioscopicsystemsisnottakenintoaccountinthispracticeandcanhaveamajoreffectuponradioscopicsystemperformance.Operatorqualificationsareanimportantaspectofsystemoperationandshouldbecoveredinaseparatewrittenprocedure.1.1ThispracticeprovidestestandmeasurementdetailsformeasuringtheperformanceofX-rayandGammarayradioscopicsystems.Radioscopicexaminationapplicationsarediverse.Therefore,systemconfigurationsarealsodiverseandconstantlychangingasthetechnologyadvances.1.2Thispracticeisintendedasameansofinitiallyqualifyingandre-qualifyingaradioscopicsystemforaspecifiedapplicationbydeterminingitsperformancelevelwhenoperatedinastaticmode.Systemarchitectureincludingthemeansofradioscopicexaminationrecordarchivingandthemethodformakingtheaccept/rejectdecisionarealsouniquesystemfeaturesandtheireffectuponsystemperformancemustbeevaluated.1.3Thegeneralprinciples,asstatedinthispractice,applybroadlytotransmitted-beampenetratingradiationradioscopysystems.Otherradioscopicsystems,suchasthoseemployingneutronsandComptonback-scatteredX-rayimagingtechniques,arenotcoveredastheymayinvolveequipmentandapplicationdetailsuniquetosuchsystems.1.4Units8212;Thevalu......
【中国标准分类号】:C43
【国际标准分类号】:19_100
【页数】:12P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforDurabilityofFinishofZipperstoLaundering
【原文标准名称】:拉链表面漆耐洗烫性能的标准试验方法
【标准号】:ASTMD2051-2003(2009)
【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】:D13.54
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:durability;laundering;zipper;Durability--consumerproducts;Enamelcoatings;Laundrymaterials/applications;Zipperfinishdurability
【摘要】:TestMethodD2051isusefulfortestingtodeterminetheeffectofrepeatedlaunderingontheappearanceofthedecorativecoatingofazipper.Thistestmethodisconsideredsatisfactoryforacceptancetestingofcommercialshipmentsbecausethemethodhasbeenusedextensivelyinthetradeforacceptancetesting.Iftherearedifferencesofpracticalsignificancebetweenreportedtestresultsfortwolaboratories(ormore),comparativetestshouldbeperformedtodetermineifthereisastatisticalbiasbetweenthem,usingcompetentstatisticalassistance.Asaminimum,thetestsamplesshouldbeusedthatareashomogeneousaspossible,thataredrawnfromthematerialfromwhichthedisparatetestresultswereobtained,andthatarerandomlyassignedinequalnumberstoeachlaboratoryfortesting.Othermaterialswithestablishedtestvaluesmaybeusedforthispurpose.Thetestresultsfromthetwolaboratoriesshouldbecomparedusingastatisticaltestforunpaireddata,ataprobabilitylevelchosenpriortothetestingseries.Ifabiasisfound,eitheritscausemustbefoundandcorrected,orfuturetestresultsmustbeadjustedinconsiderationoftheknownbias.Thetestmethod(s)inthestandardalongwiththoseinTestMethodsD2052,D2053,D2054,D2057,D2058,D2059,D2060,D2061,andD2062areacollectionofproventestmethods.Theycanbeusedasaidsintheevaluationofzipperswithouttheneedforathoroughknowledgeofzippers.Theenumeratedtestmethodsdonotprovidefortheevaluationofallzipperproperties.Besidesthosepropertiesmeasuredbymeansoftheenumeratedtestmethodsthereareotherpropertiesthatmaybeimportantforthesatisfactoryperformanceofazipper.Testmethodsformeasuringthosepropertieshavenotbeenpublishedeitherbecausenopracticalmethodshaveyetbeendevelopedorbecauseavalidevaluationoftheinformationresultingfromexistingunpublishedmethodsrequiresanintimateandthoroughknowledgeofzippers.1.1Thistestmethodcoversthedeterminationofthedurabilityoftheenamelorotherdecorativecoatingofazipperwhensubjectedtolaundering.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Y76
【国际标准分类号】:61_040
【页数】:2P.;A4
【正文语种】:英语