您的位置: 标准下载 » 国际标准 » BS 英国标准 »

BS 5445 Pt.7-1984 火灾自动探测系统元件.第7部分:用散射光、透射光或电离原理的点型探测器规范

作者:标准资料网 时间:2024-05-24 12:01:48  浏览:9917   来源:标准资料网
下载地址: 点击此处下载
【英文标准名称】:Componentsofautomaticfiredetectionsystems.Specificationforpoint-typesmokedetectorsusingscatteredlight,transmittedlightorionization
【原文标准名称】:火灾自动探测系统元件.第7部分:用散射光、透射光或电离原理的点型探测器规范
【标准号】:BS5445Pt.7-1984
【标准状态】:作废
【国别】:
【发布日期】:
【实施或试行日期】:
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:
【国际标准分类号】:
【页数】:
【正文语种】:


下载地址: 点击此处下载
【英文标准名称】:Aerospaceseries-Nuts,anchor,selflocking,twolug,floatingwithcounterbore-Classification:1100MPa/235°C;GermanandEnglishversionEN2754:2006
【原文标准名称】:航空航天系列.沉头不固定双耳自锁浮动防松螺母.等级:1100MPa/235℃
【标准号】:DINEN2754-2008
【标准状态】:现行
【国别】:德国
【发布日期】:2008-04
【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】:航空航天运输;航空运输;沉头孔钻;设计;名称与符号;尺寸;外壳;紧固件;法兰;防松螺母;作标记;材料;多语种的;螺母;托板螺母;自锁紧;航天运输;规范(验收);表面处理;螺纹形状;螺纹;可移动的
【英文主题词】:Aerospacetransport;Airtransport;Counterbores;Design;Designations;Dimensions;Enclosures;Fasteners;Flanges;Locknuts;Marking;Materials;Multilingual;Nuts;Platenuts;Self-locking;Spacetransport;Specification(approval);Surfacetreatment;Threadforms;Threads;Transportable
【摘要】:Thisstandardspecifiesthecharacteristicsoftwolug,counterbored,floatinganchornuts.withaself-lockingfeatureachievedbyformingtheupperportionout-of-round,thedimensionsofwhichareinconformitywithISO3209.Thesenutsare,intendedforuseinaircraftassemblies,inwhichthefastenersaremainlysublectedtoshearloads.Thecounterboreofnutswiththreaddiameterequaltoorgreaterthan4mmisdeepenoughtoaccommodateaboltshankinexcessofassemblythickness,aswellastheincompletethreadsThe3mmdiameternuthasnocounterbore.Theyareintendedtobeusedwiththreadedpartsof1100MPa1)tensilestrengthclassification.Thecadmiumplatingrestrictstheapplicationtotemperaturesnotexceeding235℃.
【中国标准分类号】:V20
【国际标准分类号】:49_030_30
【页数】:18P.;A4
【正文语种】:


【英文标准名称】:StandardTestMethodforTensileStrengthandYoung''sModulusofFibers
【原文标准名称】:纤维的抗拉强度及杨氏模量的标准试验方法
【标准号】:ASTMC1557-2003(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】:C28.07
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:Advancedceramics;Ambienttemperature;Carbonfibers;Ceramicmatrixcomposites;Glassfibermaterials/applications;Metalmatrixcomposites;Polymers;Qualitycontrol(QC);Qualitycontrol(QC)--plastics;Screeningofcandidatefibers;Tensilepropertie
【摘要】:Propertiesdeterminedbythistestmethodareusefulintheevaluationofnewfibersattheresearchanddevelopmentlevels.Fiberswithdiametersupto250x00D7;10-6marecoveredbythistestmethod.Veryshortfibers(includingwhiskers)callforspecializedtesttechniques(1)andarenotcoveredbythistestmethod.Thistestmethodmayalsobeusefulintheinitialscreeningofcandidatefibersforapplicationsinpolymer,metalorceramicmatrixcomposites,andqualitycontrolpurposes.Becauseoftheirnature,ceramicfibersdonothaveauniquestrength,butrather,adistributionofstrengths.Inmostcaseswhenthestrengthofthefibersiscontrolledbyonepopulationofflaws,thedistributionoffiberstrengthscanbedescribedusingatwo-parameterWeibulldistribution,althoughotherdistributionshavealsobeensuggested(2,3).Thistestmethodconstitutesamethodologytoobtainthestrengthofasinglefiber.ForthepurposeofdeterminingtheparametersofthedistributionoffiberstrengthsitisrecommendedtofollowthistestmethodinconjunctionwithPracticeC1239.1.1Thistestmethodcoversthepreparation,mounting,andtestingofsinglefibers(obtainedeitherfromafiberbundleoraspool)forthedeterminationoftensilestrengthandYoung''smodulusatambienttemperature.Advancedceramic,glass,carbonandotherfibersarecoveredbythisteststandard.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandardmayinvolvehazardousmaterials,operations,andequipment.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:W04
【国际标准分类号】:81_060_30
【页数】:10P.;A4
【正文语种】:英语