IEC 61754-7-1996 光纤连接器接口.第7部分:MPO型连接器系列
作者:标准资料网 时间:2024-05-15 12:17:48 浏览:8062
来源:标准资料网
【英文标准名称】:Fibreopticconnectorinterfaces-Part7:TypeMPOconnectorfamily
【原文标准名称】:光纤连接器接口.第7部分:MPO型连接器系列
【标准号】:IEC61754-7-1996
【标准状态】:作废
【国别】:国际
【发布日期】:1996-12
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/SC86B
【标准类型】:()
【标准水平】:()
【中文主题词】:连接工艺;电气工程;指导手册;纤维光学;连接器;光波导
【英文主题词】:opticalwaveguides;fibreoptics;guidebooks;connectiontechnology;connectors;electricalengineering
【摘要】:
【中国标准分类号】:M33;L23
【国际标准分类号】:33_180_20
【页数】:15P;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforEvaluationofDurabilityofRockforErosionControlUnderWettingandDryingConditions
【原文标准名称】:在潮湿和干燥条件下评价侵蚀控制岩石耐久性的标准试验方法
【标准号】:ASTMD5313-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:D18.17
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:岩石;稳定性;土壤普查;试验
【英文主题词】:armorstone;breakwaterstone;climaticsetting;erosioncontrol;gabion-fill;laboratorytesting;riprap;rock;rockmaterialproperties;wetting-drying
【摘要】:Rockusedforerosioncontrolmayconsistofseveraltypes,dependingonpotentialuse.Onetypemaybearmorstoneweighingfromonetothreetonsorbreakwaterstoneweighingthreetotwentytonsplacedalongshorelinesorinjettiestoprotecttheshorelinefromerosionduetotheactionoflargewaves.Anothertypemayberiprapusuallyweighinglessthanatonandplacedalongriverbanksorontheslopesofdamstopreventerosionduetorun-off,waveactionorstream-flow.Athirdtypemaybegabion-fillweighinglessthan22kg(50lb)andplacedinbasketsofwireorothersuitablematerial.Thesebasketsarethentiedtogethertoformanintegralstructuredesignedtoresisterosionalongstreambanksandaroundbridgepiers.Nomatterwhatformittakes,rockforerosioncontrolconsistsofindividualpiecesofnaturalstone.Theabilityoftheseindividualpiecesofstonetoresistdeteriorationduetoweatheringactionaffectsthestabilityoftheintegralplacementofrockforerosioncontrolandhence,thestabilityofconstructionprojects,shorelines,andstreambanks.Thistestmethodisdesignedtodeterminetheeffectsontheindividualpiecesofrockforerosioncontrolofwettinganddryingactionandtheresistanceoftherocktodeterioration.ThistestmethodwasdevelopedtobeusedinconjunctionwithadditionaltestmethodslistedinPracticeD4992.Thistestmethoddoesnotprovideanabsolutevaluebutratheranindicationoftheresistancetowettinganddrying;therefore,theresultsofthistestmethodarenottobeusedasthesolebasisforthedeterminationofrockdurability.Note18212;Thequalityoftheresultproducedbythisstandardisdependantuponthecompetenceofthepersonnelperformingit,andthesuitabilityoftheequipmentandfacilitiesused.AgenciesthatmeetthecriteriaofPracticeD3740aregenerallyconsideredcapableofcompetentandobjectivetestingandsampling.UsersofthisstandardarecautionedthatcompliancewithPracticeD3740doesnotinitselfassurereliableresults.Reliableresultsdependonmanyfactors;PracticeD3740providesameansofevaluationsomeofthosefactors.1.1Thistestmethodcoversproceduresforevaluatingthedurabilityofrockforerosioncontrolwhenexposedtowettinganddryingconditions.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P13
【国际标准分类号】:
【页数】:3P.;A4
【正文语种】:
【英文标准名称】:Concrete.Guidetospecifyingconcrete
【原文标准名称】:混凝土.混凝土配方选用导则
【标准号】:BS5328-1-1997
【标准状态】:作废
【国别】:英国
【发布日期】:1997-03-15
【实施或试行日期】:1997-03-15
【发布单位】:英国标准学会(BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:集料;施工材料;耐酸性试验;混凝土;组分;等级(质量);可加工性;水泥;化学成分;选择;合格;名称与符号;耐久性;氯化物;工作环境;抗压强度;抽样方法;水泥与混凝土技术;材料规范
【英文主题词】:
【摘要】:
【中国标准分类号】:Q13
【国际标准分类号】:91_100_30
【页数】:32P;A4
【正文语种】:英语
