ANSI B11.2-1995 机床.液压机.制造、维护和使用的安全性要求
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【英文标准名称】:MachineTools–HydraulicPowerPresses,SafetyRequirementsforConstruction,Care,andUse
【原文标准名称】:机床.液压机.制造、维护和使用的安全性要求
【标准号】:ANSIB11.2-1995
【标准状态】:现行
【国别】:美国
【发布日期】:1995
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:AMT(ASCB11)
【标准类型】:()
【标准水平】:()
【中文主题词】:安全措施;设计;安全要求;定义;事故预防;危险防护;机床;使用说明;无削加工机床;水压
【英文主题词】:hydraulicpresses;safetyrequirements;machinetools;design;instructionsforuse;accidentprevention;machinesworkingwithoutstockremoval;definitions;protectionagainstdanger;safetymeasures
【摘要】:Therequirementsofthisstandardapplyonlytothosemachinetools,commonlyreferredtoashydraulicpowerpresses,whichtransmitforcehydraulicallytocut,form,orassemblemetalorothermaterialsbymeansoftoolsordiesattachedtooroperated
【中国标准分类号】:J62
【国际标准分类号】:25_120_10
【页数】:74P.;A4
【正文语种】:英语
【英文标准名称】:Chemicalsusedfortreatmentofswimmingpoolwater-SodiumhypochloriteEnglishversionofDINEN15077:2006-09
【原文标准名称】:游泳池水处理用化学试剂.次氯酸钠
【标准号】:EN15077-2006
【标准状态】:现行
【国别】:
【发布日期】:2006-09
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:浴池水;化学试剂分析和试验;化学试剂特性;化学试剂;交付;杂质;作标记;纯度;质量;安全;次氯酸钠;规范(验收);储存;游泳池水;试验;运输;处理;水;水常规;水净化;给水;水处理
【英文主题词】:Bath-water;Chemicalanalysisandtesting;Chemicalproperties;Chemicals;Delivery;Impurities;Marking;Purity;Quality;Safety;Sodiumhypochlorite;Specification(approval);Storage;Swimmingpoolwater;Testing;Transport;Treatment;Water;Waterpractice;Waterpurification;Watersupply;Watertreatment
【摘要】:
【中国标准分类号】:G77
【国际标准分类号】:71_100_80
【页数】:13P.;A4
【正文语种】:英语
【英文标准名称】:StandardPracticeforVerificationofConstantAmplitudeDynamicForcesinanAxialFatigueTestingSystem
【原文标准名称】:轴向疲劳试验系统中恒振幅动态力验证的标准实施规范
【标准号】:ASTME467-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:E08.03
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:Axialloadingtests;Constant-load-amplitudefatiguecrackgrowthrates;Displacement;Dynamicverificationdata;Dynamometertesting;Fatigue;Statictests--metals/alloys;Verification
【摘要】:Itiswellunderstoodhowtomeasuretheforcesappliedtoaspecimenunderstaticconditions.PracticesE4detailstherequiredprocessforverifyingthestaticforcemeasurementcapabilitiesoftestingmachines.Duringdynamicoperationhowever,additionalerrorsmaymanifestthemselvesinatestingmachine.Furtherverificationisnecessarytoconfirmthedynamicforcemeasurementcapabilitiesoftestingmachines.Note18212;ThestaticmachineverificationaccomplishedbyPracticesE4simplyestablishesthereference.Indicatedforcesmeasuredfromtheforcecellarecomparedwiththedynamometerconditionedforcesstaticallyforconfirmationandthendynamicallyfordynamicverificationofthefatiguetestingsystem''sforceoutput.Note28212;Thedynamicaccuracyoftheforcecell''soutputwillnotalwaysmeettheaccuracyrequirementofthisstandardwithoutcorrection.Dynamiccorrectiontotheforcecelloutputcanbeappliedprovidedthatverificationisperformedafterthecorrectionhasbeenapplied.Note38212;Overalltestaccuracyisacombinationofmeasurementaccuracyandcontrolaccuracy.Thispracticeprovidesmethodstoevaluateeitherorboth.Ascontrolaccuracyisdependentonmanymorevariablesthanmeasurementaccuracyitisimperativethatthetestoperatorutilizeappropriatemeasurementtoolstoconfirmthatthetestingmachinex2019;scontrolbehaviorisconsistentbetweenverificationactivitiesandactualtestingactivities.Dynamicerrorsareprimarilyspandependent,notleveldependent.Thatis,theerrorforaparticularforceendlevelduringdynamicoperationisdependentontheimmediatelyprecedingforceendlevel.Largerspansimplylargerabsoluteerrorsforthesameforceendlevel.Duetothemanytestmachinefactorsthatinfluencedynamicforceaccuracy,verificationisrecommendedforeverynewcombinationofpotentialerrorproducingfactors.Primaryfactorsarespecimendesign,machineconfiguration,testfrequency,andloadingspan.Clearly,performingafullverificationforeachconfigurationisoftenimpractical.Toaddressthisproblem,dynamicverificationistakenintwoparts.First,oneormorefullverificationsareperformedatleastannually.Themainbodyofthispracticedescribesthatprocedure.Thisprovidesthemostaccurateestimateofdynamicerrors,asitwillaccountforelectronicaswellasacceleration-inducedsourcesoferror.Thesecondpart,describedinAnnexA1,isasimplifiedverificationprocedure.Itprovidesasimplifiedmethodofestimatingacceleration-inducederrorsonly.Thisprocedureistobeusedforcommonconfigurationchanges(thatis,specimen/grip/crossheadheightchanges).Dynamicverificationofthefatiguesystemisrecommendedovertheentirerangeofforceandfrequencyoverwhichtheplannedfatiguetestseriesistobeperformed.Endlevelsarelimitedtothemachine''sverifiedstaticforceasdefinedbythecurrentstaticforceverificationwhentestedinaccordancewithPracticesE4.Note48212;Thereisuncertaintyastowhetherornotthevibrationinaframewillbedifferentwhenoperatingincompressionasopposedtotension.Asaconsequence,thispracticerecommendsperformingverificationsatmaximumtensionandmaximumcompressionendlevels.Thetotalspandoesnotneedtobebetweenthosetwolevels,butcanbeperformedastwotests.Note58212;Primaryelectroniccharacteristicsaffectingdynamicmeasurementaccuracyarenoiseandbandwidth.............
【中国标准分类号】:H22
【国际标准分类号】:77_040_10
【页数】:11P.;A4
【正文语种】:英语
