【英文标准名称】:StandardTestMethodforDeflectionswithaFalling-Weight-TypeImpulseLoadDevice
【原文标准名称】:落重型脉冲负荷装置测量弯曲性的标准试验方法
【标准号】:ASTMD4694-1996(2003)
【标准状态】:现行
【国别】:
【发布日期】:1996
【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】:E17.41
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:承重面的表面修饰;建筑;额定值;精整;试验;施工材料;公路建设;路面(道路);路面;材料;表面;挠曲;挠曲试验
【英文主题词】:deflectionsurveys;deflectiontesting;fallingweight;deflectometer(FED);impulsedeflectiontestingdevice;load/deflectiontesting;nondestructivetesting(NDT);pavementdeflection;pavementtesting
【摘要】:Thistestmethodcoversthedeterminationofpavementsurfacedeflectionsasaresultoftheapplicationofanimpulseloadtothepavementsurface.Theresultingdeflectionsaremeasuredatthecenteroftheappliedloadandatvariousdistancesawayfromtheload.Deflectionsmaybeeithercorrelateddirectlytopavementperformanceorusedtodeterminethein-situmaterialcharacteristicsofthepavementlayers.Someusesofdataincludestructuralevaluationofloadcarryingcapacityanddeterminationofoverlaythicknessrequirementsforhighwayandairfieldpavements.1.1Thistestmethodcoversthemeasurementofdeflectionsofpavedandunpavedsurfaceswithafalling-weight-typeimpulseloaddevice.Thesedevicesarecommonlyreferredtoasfalling-weightdeflectometersorFWDs.1.2Thistestmethoddescribesthemeasurementofverticaldeflectionresponseofthesurfacetoanimpulseloadappliedtothepavementsurface.Verticaldeflectionsaremeasuredontheloadaxisandatpointsspacedradiallyoutwardfromtheloadaxis.Note18212;SubcommitteeD04.39iscurrentlyworkingonthedevelopmentofaPrecisionandBiasstatement.Therefore,thecommitteerecommendsthattheresultsfromthistestmethodshouldnotbeusedinabuyingorsellingrelationshipforconstructionmaterialsorconstructionmaterialsacceptance.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.AspecifichazardstatementisgiveninSection6.
【中国标准分类号】:P66
【国际标准分类号】:
【页数】:3P.;A4
【正文语种】:


【英文标准名称】:Specificationforfinepitchgears(metricmodule)-Hobsandcutters
【原文标准名称】:小齿距齿轮(米制模数)规范.第2部分:滚铣与切削
【标准号】:BS4582-2-1978
【标准状态】:现行
【国别】:英国
【发布日期】:1978-10-31
【实施或试行日期】:1978-10-31
【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】:正齿轮;形状公差;刀具柄;作标记;钟表机芯;齿轮参数;齿形;主轴;时间计量仪表部件;尺寸;榫传动铣刀;键传动铣刀;齿轮铣刀;基本齿条;斜齿轮;小型齿轮铣刀;准确度;齿轮传动;齿轮滚刀;间隙;尺寸公差;切削工具;铣刀;键;仪器
【英文主题词】:Accuracy;Basicracks;Clearances;Clockmovements;Cuttingtools;Dimensionaltolerances;Dimensions;Formtolerances;Gearcutters;Geardrives;Gearhobs;Gearparameters;Helicalgears;Instruments;Key-drivencutters;Keys(engineering);Marking;Millingcutters;Pinion-typecutters;SIsystem(metric);Spindles;Spurgears;Tenon-drivencutters;Time-measuringinstrumentcomponents;Toolshanks;Toothprofiles
【摘要】:Dimensionsandaccuracyrequirementsforhobs,rotaryformrelievedcuttersandpiniontypecuttersforfinepitchgearsofmetricmoduletoBS4582-1.AlsovalidforcuttersforgearstoBS978-2.
【中国标准分类号】:J41
【国际标准分类号】:21_200;25_080_20;25_100_99
【页数】:32P.;A4
【正文语种】:英语