IEC 60758 AMD 1-1997 人造石英晶体规范和使用指南修改1

上一篇: IEC 60748-22-1997 半导体器件集成电路第22部分:实行能力批准程序的膜集成电路和混合膜集成电路分规范
下一篇: IEC 60191-2U-1997 半导体器件的机械标准化第2部分:尺寸补充19

【英文标准名称】:StandardTestMethodforExaminationofFiberglassReinforcedPlasticFanBladesUsingAcousticEmission
【原文标准名称】:玻璃纤维增强塑料风扇叶片的声发射检测的标准试验方法
【标准号】:ASTME2076/E2076M-2010
【标准状态】:现行
【国别】:
【发布日期】:2010
【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】:E07.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:声发射;玻璃纤维增强塑料风扇叶片;声发射测试-塑料;风扇叶片;玻璃纤维增强塑料;仪器化规范;增强塑料
【英文主题词】:acousticemission;FRPfanblades;Acousticemission(AE)testing--plastics;Fanblades;Fiberglass-reinforcedplastics(FRP);FRPfanblades;Instrumentationspecifications;Reinforcedplastics
【摘要】:TheAEexaminationmethoddetectsstructurallysignificantflawsinFRPstructuresviatestloading.ThedamagemechanismsthataredetectedinFRPincluderesincracking,fiberdebonding,fiberpullout,fiberbreakage,delamination,andsecondarybondfailure.FlawsinunstressedareaswillnotgeneratedetectableAE.FlawslocatedwithAEmaybeexaminedbyothermethods.1.1Thispracticeprovidesguidelinesforacousticemission(AE)examinationsoffiberglassreinforcedplastic(FRP)fanbladesofthetypeusedinindustrialcoolingtowersandheatexchangers.1.2Thispracticeusessimulatedserviceloadingtodeterminestructuralintegrity.1.3Thispracticewilldetectsourcesofacousticemissioninareasofsensorcoveragethatarestressedduringthecourseoftheexamination.1.4Thispracticeappliestoexaminationsofnewandin-servicefanblades.1.5ThispracticeislimitedtofanbladesofFRPconstruction,withlength(hubcenterlinetotip)oflessthan3m[10ft],andwithfiberglasscontentgreaterthan15%byweight.1.6AEmeasurementsareusedtodetectemissionsources.Othernondestructiveexamination(NDE)methodsmaybeusedtoevaluatethesignificanceofAEsources.ProceduresforotherNDEmethodsarebeyondthescopeofthispractice.1.7Units8212;ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.8Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Z32
【国际标准分类号】:19_100
【页数】:6P.;A4
【正文语种】:


【英文标准名称】:Sensitiveswitchesforcommunicationtechnology;dimensions,ratings,requirements,tests;typeF
【原文标准名称】:电信工程用敏感开关.尺寸、额定值、要求、检验.F型
【标准号】:DIN41636-6-1984
【标准状态】:现行
【国别】:德国
【发布日期】:1984-11
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:设计;尺寸;额定值;电信;开关;要求;传播技术;规范(审批)
【英文主题词】:Communicationtechnology;Design;Dimensions;Ratings;Specification(approval);Switches;Telecommunication
【摘要】:
【中国标准分类号】:L22
【国际标准分类号】:31_220_20
【页数】:8P;A4
【正文语种】:德语