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【英文标准名称】:Laboratoryglassware;Principlesofdesignandconstructionofvolumetricglassware
【原文标准名称】:实验室玻璃器皿玻璃量器的设计和结构
【标准号】:ISO384-1978
【标准状态】:现行
【国别】:国际
【发布日期】:1978-01
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC48
【标准类型】:()
【标准水平】:()
【中文主题词】:温度;材料;作标记;规范;玻璃;实验室器皿;尺寸;验证;体积;准确度;校正;实验室玻璃器皿;实验室;设备规范;实验室设备;塞子;产品规范;容量测量仪器;划刻度;测量仪器;仪表刻度;公差;容积测量;数字
【英文主题词】:Accuracy;Calibration;Definitions;Digits;Dimensions;Glass;Graduations;Instrumentscales;Laboratories;Laboratoryequipment;Laboratoryglassware;Laboratoryware;Marking;Materials;Measuringinstruments;Productspecification;Specifications;Stoppers;Temperature;Tolerances(measurement);Verification;Volume;Volumemeasurement;Volumetricapparatus
【摘要】:Referencetemperatur,volumetricaccuracy,methodsofverificationandconstructionareconsidered.Theannexesdealwiththelimitsofvolumetricerrorinrelationtocapacityandtothediameteratthemeniscus.Theinterrelationbetweenstandarddeviation,limitofvolumetricerror,andlinethicknessisdescribed.
【中国标准分类号】:N64
【国际标准分类号】:71_040_20
【页数】:13P;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforCompressiveStrengthandElasticModuliofIntactRockCoreSpecimensunderVaryingStatesofStressandTemperatures
【原文标准名称】:完整岩芯样本在不同应力和温度条件下的抗压强度和弹性模数的标准试验方法
【标准号】:ASTMD7012-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:D18.12
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:bulkmodulus;compressiontesting;compressivestrength;confinedcompression;elasticmoduli;loadingtests;modulusofelasticity;Mohrstresscircle;Poisson&x2019;sratio;repeatability;reproducibility;rock;shearmodulu
【摘要】:TheparametersobtainedfromMethodsAandBareintermsofundrainedtotalstress(asalreadymentionedin1.1).However,therearesomecaseswhereeithertherocktypeortheloadingconditionoftheproblemunderconsiderationwillrequiretheeffectivestressordrainedparametersbedetermined.Uniaxialcompressivestrength(MethodC)ofrockisusedinmanydesignformulasandissometimesusedasanindexpropertytoselecttheappropriateexcavationtechnique.Deformationandstrengthofrockareknowntobefunctionsofconfiningpressure.Thetriaxialcompressiontest(MethodA)iscommonlyusedtosimulatethestressconditionsunderwhichmostundergroundrockmassesexist.Theelasticconstants(MethodsBandD)areusedtocalculatethestressanddeformationinrockstructures.Thedeformationandstrengthpropertiesofrockcoresmeasuredinthelaboratoryusuallydonotaccuratelyreflectlarge-scaleinsitupropertiesbecausethelatterarestronglyinfluencedbyjoints,faults,inhomogeneities,weaknessplanes,andotherfactors.Therefore,laboratoryvaluesforintactspecimensmustbeemployedwithproperjudgmentinengineeringapplications.Note28212;Notwithstandingthestatementsonprecisionandbiascontainedinthistestmethod;themeasuresofprecisionofthesetestmethodsaredependentonthecompetenceofthepersonnelperformingthem,andonthesuitabilityoftheequipmentandfacilitiesused.AgenciesthatmeetthecriteriaofPracticeD3740aregenerallyconsideredcapableofcompetentandobjectivetesting.UsersofthistestmethodarecautionedthatcompliancewithPracticeD3740doesnotinitselfassurereliabletesting.Reliabletestingdependsonmanyfactors;PracticeD3740providesameansforevaluatingsomeofthosefactors.1.1Thesetestmethodscoverthedeterminationofthestrengthofintactrockcorespecimensinuniaxialandtriaxialcompression.Thetestsprovidedataindeterminingthestrengthofrock,namely:theuniaxialstrength,shearstrengthsatdifferentpressuresanddifferentelevatedtemperatures,angleofinternalfriction,(angleofshearingresistance),andcohesionintercept.Thetestmethodsspecifytheapparatus,instrumentation,andproceduresfordeterminingthestress-axialstrainandthestress-lateralstraincurves,aswellasYoung''smodulus,E,andPoisson''sratio,x03C5;.Itshouldbeobservedthatthesemethodsmakenoprovisionforporepressuremeasurementsandspecimensareundrained(platensarenotvented).Thusthestrengthvaluesdeterminedareintermsoftotalstress,thatis,arenotcorrectedforporepressures.Thesetestmethodsdonotincludetheproceduresnecessarytoobtainastress-straincurvebeyondtheultimatestrength.1.2ThisstandardreplacesandcombinesthefollowingStandardTestMethods:D2664TriaxialCompressiveStrengthofUndrainedRockCoreSpecimensWithoutPorePressureMeasurements;D5407ElasticModuliofUndrainedRockCoreSpecimensinTriaxialCompressionWithoutPorePressureMeasurements;D2938UnconfinedCompressiveStrengthofIntactRockCoreSpecimens;andD3148ElasticModuliofIntactRockCoreSpecimensinUniaxialCompression.TheoriginalfourstandardsarenowreferredtoasMethodsinthisstandard.1.2.1MethodA:TriaxialCompressiveStrengthofUndrainedRockCoreSpecimensWithoutPorePressureMeasurements.1.2.2MethodB:ElasticModuliofUndrainedRockCoreSpeci......
【中国标准分类号】:P13
【国际标准分类号】:13_080_20
【页数】:9P.;A4
【正文语种】:英语