BS 7419-1991 压紧螺栓规范
作者:标准资料网 时间:2024-05-10 11:01:13 浏览:9232
来源:标准资料网
【英文标准名称】:Specificationforholdingdownbolts
【原文标准名称】:压紧螺栓规范
【标准号】:BS7419-1991
【标准状态】:现行
【国别】:英国
【发布日期】:1991-03-29
【实施或试行日期】:1991-03-29
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:螺纹紧固件;尺寸公差;六角头紧固件;尺寸;钢;外螺纹紧固件;方头紧固件;建筑系统构件;紧固件;作标记;螺栓
【英文主题词】:Bolts;Constructionsystemsparts;Dimensionaltolerances;Dimensions;External-threadfasteners;Fasteners;Hexagonal-headfasteners;Marking;Square-headfasteners;Steels;Threadedfasteners
【摘要】:Generaldimensions,tolerances(productgradeC),materialsandmechanicalpropertiesforuseinconnectingsteelstructurestotheirfoundationsandsimilarapplications.
【中国标准分类号】:J13
【国际标准分类号】:21_060_10
【页数】:16P.;A4
【正文语种】:英语
【英文标准名称】:Uncertaintyofmeasurement—Part3:Guidetotheexpressionofuncertaintyinmeasurement(GUM:1995)
【原文标准名称】:测量的不确定性.第3部分:测量不确定性的表达指南(GUM-1995)
【标准号】:ISO/IECGUIDE98-3-2008
【标准状态】:现行
【国别】:国际
【发布日期】:
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:1.1ThisGuideestablishesgeneralrulesforevaluatingandexpressinguncertaintyinmeasurementthatcanbefollowedatvariouslevelsofaccuracyandinmanyfields—fromtheshopfloortofundamentalresearch.Therefore,theprinciplesofthisGuideareintendedtobeapplicabletoabroadspectrumofmeasurements,includingthoserequiredfor:-maintainingqualitycontrolandqualityassuranceinproduction;-complyingwithandenforcinglawsandregulations;-conductingbasicresearch,andappliedresearchanddevelopment,inscienceandengineering;-calibratingstandardsandinstrumentsandperformingteststhroughoutanationalmeasurementsysteminordertoachievetraceabilitytonationalstandards;-developing,maintaining,andcomparinginternationalandnationalphysicalreferencestandards,includingreferencematerials.1.2ThisGuideisprimarilyconcernedwiththeexpressionofuncertaintyinthemeasurementofawell-definedphysicalquantity—themeasurand—thatcanbecharacterizedbyanessentiallyuniquevalue.Ifthephenomenonofinterestcanberepresentedonlyasadistributionofvaluesorisdependentononeormoreparameters,suchastime,thenthemeasurandsrequiredforitsdescriptionarethesetofquantitiesdescribingthatdistributionorthatdependence.1.3ThisGuideisalsoapplicabletoevaluatingandexpressingtheuncertaintyassociatedwiththeconceptualdesignandtheoreticalanalysisofexperiments,methodsofmeasurement,andcomplexcomponentsandsystems.Becauseameasurementresultanditsuncertaintymaybeconceptualandbasedentirelyonhypotheticaldata,theterm“resultofameasurement”asusedinthisGuideshouldbeinterpretedinthisbroadercontext.1.4ThisGuideprovidesgeneralrulesforevaluatingandexpressinguncertaintyinmeasurementratherthandetailed,technology-specificinstructions.Further,itdoesnotdiscusshowtheuncertaintyofaparticularmeasurementresult,onceevaluated,maybeusedfordifferentpurposes,forexample,todrawconclusionsaboutthecompatibilityofthatresultwithothersimilarresults,toestablishtolerancelimitsinamanufacturingprocess,ortodecideifacertaincourseofactionmaybesafelyundertaken.ItmaythereforebenecessarytodevelopparticularstandardsbasedonthisGuidethatdealwiththeproblemspeculiartospecificfieldsofmeasurementorwiththevarioususesofquantitativeexpressionsofuncertainty.*ThesestandardsmaybesimplifiedversionsofthisGuidebutshouldincludethedetailthatisappropriatetothelevelofaccuracyandcomplexityofthemeasurementsandusesaddressed.
【中国标准分类号】:A50
【国际标准分类号】:17_020
【页数】:132P.;A4
【正文语种】:英语
【英文标准名称】:Luminaireperformance-Part1:Generalrequirements
【原文标准名称】:灯具性能.第1部分:一般要求
【标准号】:IEC/PAS62722-1-2011
【标准状态】:现行
【国别】:国际
【发布日期】:2011-06
【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/SC34D
【标准类型】:()
【标准水平】:()
【中文主题词】:防护等级;间隙;接触安全装置;定义(术语);介电强度;电缆线;电灯;耐电强度;电气工程;电性能;电气安全性;环境影响;照明工程;绝缘电阻;漏电路径;照明设备;照明装置;照明系统;灯具;处理;测量;测量技术;机械性能;性能;安全性;安全性要求;温度;温升试验;试验灯;测试;测试要求;测试电压;热稳定性;跟踪系数
【英文主题词】:Classesofprotection;Clearances;Contactsafetydevices;Definitions;Dielectricstrength;Electriccables;Electriclamps;Electricstrength;Electricalengineering;Electricalproperties;Electricalsafety;Environmentaleffects;Illuminationengineering;Insulatingresistance;Leakagepaths;Lightingequipment;Lightingplants;Lightingsystems;Luminaires;Marking;Measurement;Measuringtechniques;Mechanicalproperties;Performance;Safety;Safetyrequirements;Temperature;Temperature-risetests;Testlamps;Testing;Testingrequirements;Testingvoltages;Thermalstability;Trackingindex
【摘要】:
【中国标准分类号】:K73
【国际标准分类号】:29_140_40
【页数】:14P;A4
【正文语种】:英语
