BS EN 13481-3-2012 铁路应用设施.轨道.紧固件系统的性能要求.木质轨枕的紧固件系统
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【英文标准名称】:Railwayapplications.Track.Performancerequirementsforfasteningsystems.Fasteningsystemsforwoodsleepers
【原文标准名称】:铁路应用设施.轨道.紧固件系统的性能要求.木质轨枕的紧固件系统
【标准号】:BSEN13481-3-2012
【标准状态】:现行
【国别】:英国
【发布日期】:2012-06-30
【实施或试行日期】:2012-06-30
【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】:阻尼(波);效率;紧固件;固定件;性能;永存性铁路;道岔转换;检验荷载;轨道紧固设备;铁路应用设施;铁路建造;铁路设备;铁路;轨枕;规范(验收);轨道(物料装卸设备);旅行线路;道岔;型号批准;振动;丁字形铁轨;木制品;枕木
【英文主题词】:Damping;Efficiency;Fasteners;Fixings;Performance;Permanentways;Pointwork;Proofloading;Railfasteningsystems;Railwayapplications;Railwayconstruction;Railwayinstallations;Railways;Sleepers;Specification(approval);Tracks(materialshandlingequipment);Travelways;Turnouts;Typeapprovals;Vibrations;Vignolrail;Wood;Woodensleepers
【摘要】:
【中国标准分类号】:S11
【国际标准分类号】:93_100
【页数】:20P;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodsforMinimumIndexDensityandUnitWeightofSoilsandCalculationofRelativeDensity
【原文标准名称】:土壤最低标准密度和单位重量与相对密度计算的标准试验方法
【标准号】:ASTMD4254-2000(2006)e1
【标准状态】:现行
【国别】:美国
【发布日期】:2000
【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】:D18.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:minimumindexdensity;minimumindexunitweight;relativedensity;Cohesionlesssoil;Compactionmeasurement--soils;Density--soil/rock/relatedmaterials
【摘要】:Thedensity/unitweightofacohesionlesssoilmaybedeterminedbyvariousin-placemethodsinthefieldorbythemeasurementofphysicaldimensionsandmassesbylaboratorysoilspecimens.Thedrydensity/unitweightofacohesionlesssoildoesnotnecessarily,byitself,revealwhetherthesoilislooseordense.Relativedensity/unitweightexpressesthedegreeofcompactnessofacohesionlesssoilwithrespecttotheloosestanddensestconditionasdefinedbystandardlaboratoryprocedures.Onlywhenviewedagainstthepossiblerangeofvariation,intermsofrelativedensity/unitweight,canthedrydensity/unitweightberelatedtothecompactioneffortusedtoplacethesoilinacompactedfillorindicatevolumechangeandstress-straintendenciesofsoilwhensubjectedtoexternalloading.Anabsoluteminimumdensity/unitweightisnotnecessarilyobtainedbythesetestmethods.Note18212;Inaddition,therearepublisheddatatoindicatethatthesetestmethodshaveahighdegreeofvariability.However,thevariabilitycanbegreatlyreducedbycarefulcalibrationofequipment,andcarefulattentiontopropertestprocedureandtechnique.Theuseofthestandardmolds(6.3.1)hasbeenfoundtobesatisfactoryformost1.1Thesetestmethodscoverthedeterminationoftheminimum-indexdrydensity/unitweightofcohesionless,free-drainingsoils.Theadjectivex201C;dryx201D;beforedensityorunitweightisomittedinthetitleandremainingportionsofthisstandardstobebeconsistentwiththeapplicabledefinitionsgiveninSection3onTerminology.1.2Systemofunits:1.2.1Thetestingapparatusdescribedinthisstandardhasbeendevelopedandmanufacturedusingvaluesinthegravimetricorinch-poundsystem.Therefore,testapparatusdimensionsandmassgivenininch-poundunitsareregardedasthestandard.1.2.2Itiscommonpracticeintheengineeringprofessiontoconcurrentlyusepoundstorepresentbothaunitofmass(lbm)andaunitofforce(lbf).Thisimplicitlycombinestwoseparatesystemsofunits;thatis,theabsolutesystemandthegravitationalsystem.Itisscientificallyundesirabletocombinetheuseoftwoseparatesetsofinch-poundunitswithinasinglestandard.Thistestmethodhasbeenwrittenusingthegravitationalsystemofunitswhendealingwiththeinch-poundsystem.Inthissystem,thepound(lb
【中国标准分类号】:P13
【国际标准分类号】:93_020
【页数】:9P.;A4
【正文语种】:英语
【英文标准名称】:Methodsofsamplingwaterusedinindustry
【原文标准名称】:工业用水的取样方法
【标准号】:BS1328-1969
【标准状态】:作废
【国别】:英国
【发布日期】:1969-09-30
【实施或试行日期】:
【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】:工业的;蒸馏水;水质试验;水;包装;容器;含量测定;样本;采样设备;抽样方法;去离子水;软水;作标记
【英文主题词】:packaging;water;samples;industrial;watertesting;containers;distilledwater;samplingequipment;marking;determinationofcontent;samplingmethods;de-ionizedwater;softwater
【摘要】:
【中国标准分类号】:P40
【国际标准分类号】:
【页数】:32P;A4
【正文语种】:英语
