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【英文标准名称】:Environmentaltesting.Testmethods.TestFf.Vibration-time-historymethod
【原文标准名称】:环境试验.第2部分:试验.第57节:试验Ff.振动-时间关系曲线图法
【标准号】:BSEN60068-2-57-1993
【标准状态】:作废
【国别】:英国
【发布日期】:1990-03-30
【实施或试行日期】:1990-03-30
【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】:电气元件;电气设备;公差(测量);环境试验;振动试验;电子设备及元件;试样制备;试验条件;频率
【英文主题词】:vibrationtesting;environmentaltesting;specimenpreparation;electricalcomponents;tolerances(measurement);frequencies;electronicequipmentandcomponents;electricalequipment;testingconditions
【摘要】:
【中国标准分类号】:A21
【国际标准分类号】:19_040
【页数】:32P;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodsforEvaluatingMasonryBondStrength
【原文标准名称】:评定砖石砌合强度的标准试验方法
【标准号】:ASTMC1357-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:C15.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:flexuralbondstrength;masonry;Bondstrength--masonry/mortar;Masonrystrength;Masonryunits
【摘要】:Thistestmethodisintendedforuseincomparingthebondstrengths(underthegivenconditions)ofmasonrymortars,asdeterminedinaccordancewithTestMethodC1072.Thistestmethodcouldbeused,forexample,tocheckoneaspectofthequalityofmortarproductsafterproduction,ortoindicatethebondpotentialofamortarproductwithoutrequiringtheproducttobetestedincombinationwithmanydifferentunits.Thistestmethodusescontrolledconditionsoffabricationandcuringthatarenotintendedtorepresentfieldconditions.Thistestmethodusesstandardconcretemasonryunits.Mortarsarebatchedbyweightequivalentsofvolumeproportionsandaremixedtoaprescribedflow.Prismsareconstructedusingajigandarebag-cured.Flexuralbondstrengthdeterminedbythistestmethodshallnotbeinterpretedastheflexuralbondstrengthofawall(becausestandardunitsarenotusedforwallconstruction),norshallitbeinterpretedasanindicationofextentofbondforpurposesofwaterpermeabilityevaluation.1.1Thesetestmethodscovertheevaluationofflexuralbondstrength,normaltothebedjoints,ofmasonrybuiltofmanufacturedmasonryunits,asdeterminedinaccordancewithTestMethodC1072.Samplingandtestingproceduresarereferenced,andtermsaredefined.Twodifferenttestmethodsarespecified,eachforadifferentpurpose:1.1.1Thefirsttestmethodisthex201C;TestMethodforLaboratory-PreparedSpecimens.x201D;Itspurposeistocomparethebondstrengths(underthegivenconditions)ofmasonrymortars.Itcouldbeused,forexample,tocheckthequalityofmortarproductsafterproduction,ortoindicatethebondstrength(underthegivenconditions)ofamortarproductwithoutrequiringtheproducttobetestedincombinationwithmanydifferentunits.Itisnotintendedtorepresentfieldconditions.Itusesstandardconcretemasonryunits.Mortarsarebatchedbyweightequivalentsofvolumeproportionsandaremixedtoaprescribedflow.Prismsareconstructedusingajigandarebag-cured.Note18212;Standardfiredclaymasonryunitsareunderdevelopmentbutarenotnowavailable.Whentheirdevelopmentiscomplete,theywillbeincorporatedintothesetestmethods.1.1.2Thesecondtestmethodisthex201C;TestMethodforField-PreparedSpecimens.x201D;Itspurposeistoevaluatethebondstrength(underthegivenconditions)ofaparticularunit-mortarcombination,eitherforpreconstructionevaluationofmaterialsorforqualitycontrolpurposesduringconstruction.Mortarsarebatchedconventionally,andtheflowisnotprescribed.Prismsareconstructedconventionally(nojig)andarebag-cured.1.1.3Thetwotestmethodsarenotconsistent,noraretheyintendedtobe.Theyareintendedtobeusedfortwodifferentpurposes.Tomakethisclear,thetwomethodsarepresentedseparately.1.1.4AppendixX1suggeststwopossiblecriteriaforassessingthebondstrengthvaluesobtainedusingthesetestmethods.Thesepossibleevaluationcriteriaaregivenforillustrationonlyandarenotmandatory.1.2Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddetermine......
【中国标准分类号】:P24
【国际标准分类号】:91_080_30
【页数】:9P.;A4
【正文语种】:英语