【英文标准名称】:StandardTestMethodforDiagonalTension(Shear)inMasonryAssemblages
【原文标准名称】:砖砌体中的斜拉应力(剪切力)的标准试验方法
【标准号】:ASTME519-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:建筑;建设工程;砖石工程;剪切测试;测试
【英文主题词】:compressivestrength;diagonalloading;diagonaltensilestrength;diagonaltension;masonryassemblages;masonryunits;mortar;shear;shearstrength
【摘要】:Thistestmethodwasdevelopedtomeasuremoreaccuratelythediagonaltensile(shear)strengthofmasonrythanwaspossiblewithotheravailablemethods.Thespecimensizewasselectedasbeingthesmallestthatwouldbereasonablyrepresentativeofafull-sizemasonryassemblageandthatwouldpermittheuseoftestingmachinessuchasareusedbymanylaboratories.Note18212;Asaresearchtestmethodusedonlyforthepurposeofevaluatingtheeffectsofvariablessuchastypeofmasonryunit,mortar,workmanship,etc.,asmallersizespecimencouldbeusediftheavailabletestingequipmentwillnotaccommodatea1.2-m(4-ft)squarespecimen.However,thereisalackofexperimentaldatathatwouldpermitanevaluationoftheeffectofspecimensizeontheshearstrengthortopermitacorrelationbetweentheresultsofsmall-scalespecimentestsandlargerspecimens.1.1Thistestmethodcoversdeterminationofthediagonaltensileorshearstrengthof1.2by1.2-m(4by4-ft)masonryassemblagesbyloadingthemincompressionalongonediagonal(seeFig.1),thuscausingadiagonaltensionfailurewiththespecimensplittingapartparalleltothedirectionofload.1.2AnnexA1providesrequirementsregardingthedeterminationofthediagonal-tensionstrengthofmasonryundercombineddiagonal-tensionandcompressiveloading.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareprovidedforinformationonly.Thisstandardmayinvolvehazardousmaterials,operations,andequipment.Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P24
【国际标准分类号】:91_060_10
【页数】:5P.;A4
【正文语种】:


【英文标准名称】:Soilquality-Chemicalmethods-Determinationofcadmium,chromium,cobalt,copper,lead,manganese,nickelandzincinaquaregiaextractsofsoil-Flameandelectrothermalatomicabsorptionspectrometricmethods
【原文标准名称】:土质.化学方法.土壤的王水萃取物中镉、铬、钴、铜、铅、锰、镍和锌含量测定.火焰和电热原子吸收光谱测定法
【标准号】:BS7755-3.13-1998
【标准状态】:现行
【国别】:英国
【发布日期】:1998-07-15
【实施或试行日期】:1998-07-15
【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】:锌;工作范围;镉;试验设备;试验条件;锰;铬;图解法;控制样品;土壤学;化学分析和试验;含量测定;校正;原子吸收分光光度测定法;再现性;定量分析;土壤;镍;铅;铜;钴;土壤试验;质量
【英文主题词】:Aquaregia;Atomicabsorptionspectrometry;Atomicabsorptionspectrophotometry;Cadmium;Chemicalanalysisandtesting;Chromium;Cobalt;Compositionoftheground;Copper;Determinationofcontent;Electrothermal;Lead;Manganese;Methodsofanalysis;Nickel;Quality;Soilanalysis;Soilsurveys;Soiltesting;Soils;Spectrometry;Waterpractice;Zinc
【摘要】:ThisInternationalStandardspecifiestwomethodsforthedetermination,byatomicabsorptionspectrometry,ofoneormoreofcadmium,chromium,cobalt,copper,lead,manganese,nickelandzinc,inaquaregiaextractsofsoilobtainedinaccordancewithISO11466.Thechoiceofmethodforanyelementdependsontheamountofthatelementexpectedtobeinasample,andbothmethodsmightbeneededtocoveralltheelementsinonesample.Themethodsareapplicablewhentheextractableelementcontentisaboveorbelowtheamountgivenintable1(asmilligramsperkilogram,drymatter),asappropriate.Thetwomethodsaredescribedseparatelyasfollows:MethodA-Determinationofcadmium,chromium,cobalt,copper,lead,manganese,nickelandzincbyflameatomicabsorptionspectrometry.MethodB-Determinationofcadmium,chromium,cobalt,copper,lead,manganese,nickelandzincbyelectrothermalatomicabsorptionspectrometry.Manyoftheproceduresandreagentsarecommontobothmethods,andtothedifferentelementswithineachmethod.Usersareadvised,however,toreadthewholestandardcarefullybeforeembarkingonanyoftheprocedures.NOTE1Indicativelimitsgivenintable1areappropriatetotheequipmentandtechniquesavaiableatthetimeofpublicationofthisInternationalStandard.Technicalimprovementsmaychangethispositioninthefuture.NOTE2ThisInternationalStandardrefersspecificallytotheuseofatomicabsorptionspectrometry.UsersofthisInternationalStandardareadvisedtooperatetheirlaboratoriestoacceptedqualitycontrolprocedures.CertifiedReferenceMaterials(CRM)shouldbeusedtoestablishtheamountsoftherelevantelementsinin-housereferencematerials.ThelattercanbeusedforroutinequalitycontroloftheproceduresgiveninthisInternationalStandard.Resultsshouldbeestablishedwithcontrolcharts,foreachelement,withinthelaboratory.Noresultshouldbeacceptedwhichfallsoutsideanagreedlimit.Qualitycontrolproceduresbasedonawidelyacceptedstatisticaltechniqueshouldbeusedtoestablishsuchlimit,toensurethatthesearestableandthatnolong-termdriftisoccurring.CertifiedReferenceMaterialsshouldbeusedregularlytomaintaintheintegrityofthein-housereferencematerialsand,thereby,thequalitycontrolsystem.
【中国标准分类号】:B11
【国际标准分类号】:13_080_10
【页数】:26P;A4
【正文语种】:英语