BS EN 13232-7-2006 铁路设施.轨道.铁道侧线和道岔口.可移动部分的道叉口
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【英文标准名称】:Railwayapplications-Track-Switchesandcrossings-Crossingswithmoveableparts
【原文标准名称】:铁路设施.轨道.铁道侧线和道岔口.可移动部分的道叉口
【标准号】:BSEN13232-7-2006
【标准状态】:作废
【国别】:英国
【发布日期】:2006-04-28
【实施或试行日期】:2006-04-28
【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】:验收(鉴定);验收检验;验收规范;岔道;定义;设计;效率;几何;道路平面交叉;易动的;可移动的;性能;持久方式;道岔转换;铁路设施;铁路建造;铁路设备;铁路;规范(验收);路面结构;供货表;测试;公差(测量);轨道(物料装卸设备);道岔;可运输的
【英文主题词】:Acceptance(approval);Acceptanceinspection;Acceptancespecification;Crossings;Definition;Definitions;Design;Efficiency;Geometry;Levelcrossings;Mobile;Movable;Performance;Permanentways;Pointwork;Railwayapplications;Railwayconstruction;Railwayinstallations;Railways;Specification(approval);Superstructure;Supplyschedule;Testing;Tolerances(measurement);Tracks(materialshandlingequipment);Transportable;Turnouts
【摘要】:Thescopeofthispartis:?toestablishaworkingterminologyforcrossingswithmoveableparts,whichmeanscrossingswithmoveablepartstoclosethegapoftherunningedge,andtheirconstituentparts,andidentifythemaintypes;?tolisttheminimuminformativerequirementsforthemanufactureofcrossingswithmoveablepartsand/ortheirconstituentparts;?toformulatecodesofpracticeforinspectionandtolerancesforcrossingswithmoveablepartsand/ortheirconstituentparts;?toestablishthelimitsandextentofsupply;?tolistthemethodbywhichcrossingswithmoveablepartsandtheirconstructionalpartsshouldbeidentifiedandtraced;?tolistthedifferentandvaryingwaysbywhichcrossingswithmoveablepartscanbedescribed,usingthefollowingparameters:?geometryofcrossings;?typesofconstruction;?performancerequirements;?designcriteria;?tolerancesandinspection.
【中国标准分类号】:S11
【国际标准分类号】:
【页数】:68P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforDensityofPolyethylenebytheUltrasoundTechnique
【原文标准名称】:用超声波技术测定聚乙烯密度的标准试验方法
【标准号】:ASTMD4883-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:D20.70
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:amorphous;crystalline;density;molded;plaques;polyethylene;sonic;ultrasonic;ultrasound;Density--plastics;Polyethylene(PE);Ultrasoundtesting
【摘要】:Thedensityofpolyethyleneisaconvenientlymeasurablepropertywhichisfrequentlyusefulasameansoffollowingphysicalchangesinasample,asanindicationofuniformityamongsamples,andasameansofidentification.Thistestmethodisdesignedtoyieldresultswithaprecisionofx00B1;0.08%orbetter.1.1Thistestmethodcoversthedeterminationofthedensityofpolyethylenethroughtheutilizationofultrasoundequipment.1.2Thistestmethodisbasedonthedistinctbehaviorsoftheamorphousandcrystallinephasesofpolyethyleneinresponsetoultrasound.Polyethyleneshallbeviewedasacompositestructurewherehigh-densitycrystallineregionsareconnectedbylower-densityamorphousmaterial.Theratioofcrystallinetoamorphousmaterialdeterminesthefinaldensityofthematerial.Theamorphousandcrystallinephasesexhibitverydistinctbehaviorswithregardtothepropagationofsoundwaves.Thepropagationcharacteristicsinthecompositewilldependontherelativeamountofthetwophases(thedegreeofcrystallinity).1.3InorganicmaterialsincreasedensityasmeasuredbyTestMethodsD792andD1505,buttheyhavelittleornoeffectonultrasonicdensity.Theultrasonicmeasurementisbasicallyabaseresindensity.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note18212;ThereisnoknownISOequivalenttothisstandard.
【中国标准分类号】:G31
【国际标准分类号】:83_080_20
【页数】:4P.;A4
【正文语种】:英语
Product Code:SAE AMS5640
Title:Steel, Corrosion-Resistant, Bars, Wire, and Forgings 18cr 9.0ni Free Machining
Issuing Committee:Ams F Corrosion Heat Resistant Alloys Committee
Scope:This specification covers three types of a free-machining, corrosion-resistant steel in the form of bars, wire, forgings, and forging stock.