DIN 3850-1998 压力连接管接头.概述
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【英文标准名称】:Compressionfittings-Summary
【原文标准名称】:压力连接管接头.概述
【标准号】:DIN3850-1998
【标准状态】:作废
【国别】:德国
【发布日期】:1998-12
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:压合接头;标准;液压装置;流体技术;标准化;连接件;机械工程;型式;紧固件;管道;管道配件;密封原件;气动力学;调查;密封件;车辆结构
【英文主题词】:fasteners;types;surveys;pipefittings;sealingelements;compressionfittings;constructionofvehicles;standards;hydraulics;standardization;mechanicalengineering;pipelines;connectionpieces;fluidtechnologies;pneumatics
【摘要】:
【中国标准分类号】:J15
【国际标准分类号】:23_040_60
【页数】:11P.;A4
【正文语种】:德语
【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
【英文标准名称】:Methodsoftestforpaints-Determinationofcolourandcolourdifference:calculation
【原文标准名称】:涂料试验方法.第D10集:涂料膜光学试验.第10部分:颜色和色差测定:计算
【标准号】:BS3900-D10-1986
【标准状态】:现行
【国别】:英国
【发布日期】:1986-10-31
【实施或试行日期】:1986-10-31
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:涂料;数学计算;覆层;染色试验;公式;清漆;比色法;颜色
【英文主题词】:CIELABformulae;Colorimetric;Colorimetry;Colourdifferences;Mathematicalcalculations;Paints;Surfacecolours;Testing;Tests;Tolerances(measurement);Varnishes
【摘要】:Methodforquantitativecolorimetricevaluationofsmallcolourdifferencesbetweenpaintfilms.
【中国标准分类号】:G50
【国际标准分类号】:87_040
【页数】:4P;A4
【正文语种】:英语
