【英文标准名称】:Accuracyofmachinetoolsandmethodsoftest-Specificationforverticalboringandturninglathes,singleanddoublecolumntypes
【原文标准名称】:机床精度及试验方法.第22部分:立式单柱和双柱镗车床规范
【标准号】:BS4656-22-1988
【标准状态】:现行
【国别】:英国
【发布日期】:1988-05-31
【实施或试行日期】:1988-05-31
【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】:立式车床;加工公差;机床部件;刀具夹持装置;机床台;设计;车床;准确度;形状公差;定义;尺寸公差;机床;导轨
【英文主题词】:Acceptancespecification;Accuracy;Covers;Definition;Definitions;Dimensions;Flatness(surface);Lathes;Machinetables;Machinetools;Slidevalves;Testequipment;Testing;Testingconditions;Thread-cutting;Tolerances(measurement);Transoms;Turning;Verticalturningandboringlathes
【摘要】:AccuracyrequirementsandgeometricalandpracticaltestswithreferencetoBS3800.
【中国标准分类号】:J54
【国际标准分类号】:25_080_10
【页数】:20P;A4
【正文语种】:英语


【英文标准名称】:StandardSpecificationforShock-AbsorbingPropertiesofNorthAmericanFootballFieldPlayingSystemsasMeasuredintheField
【原文标准名称】:现场测量北美足球运动场地减震特性的标准规范
【标准号】:ASTMF1936-2007e1
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:F08.65
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:跌落试验;现场试验;冲击;防护服装;规范;体育运动;运动衣
【英文主题词】:averageGmax;combinationfieldsystem;droptest;fieldtesting;Gmax;impact;impactattenuation;naturalgrassfieldsystem;NorthAmericanfootball;syntheticturffieldsystem;testpointinfillturfsystem
【摘要】:1.1ThisspecificationcoversatestmethodandmaximumimpactattenuationforalltypesofinstalledturfplayingsystemsforNorthAmericanfootball.Theturfplayingsystemtypicallyincludesfieldareaswithintheinboundslinesandareasoutsidetheinboundslinesextendingtothesportspecificlimitlinesasdefinedbytheappropriateregulatingbodyorappropriatestandard,orboth.Alloftheseareasareareaswhereanathleteshouldexpectcompliantimpactattenuationcharacteristics.1.2Thisspecificationisintendedtoestablishamethodtoidentifyandreportareaswithinanexistingplayingsystemwhereshock-absorbingpropertiesexceedrecommendedthresholdvalues.Shock-absorbingvaluesfornewinstallationsshouldbelessthanthemaximumthresholdssetherein.1.3Sitespecificconditionsmayexistinwhichchangesinsurfacetypesuchastracksurfacingorcoversoversubsurfacestructures,orboth,arelocatedwithintheextentofthelimitlineswhichimpactcharacteristicsinamannerthatplacetheseconditionsoutsidethescopeofthisstandard.1.4Itisrecognizedthatlaboratorytestingresultsoftenreflectoptimumconditionswhichmaynotcorrespondtotheactualsiteconditions.Therefore,amethodoftestingalongwithamaximumforimpactattenuationofinstalledsyntheticturfplayingsystemsisaddressedherein.1.5Thisspecificationdoesnotimplythataninjurycannotbeincurredifthesurfacesystemcomplieswiththisspecification.1.6Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.Thefollowingprecautionarystatementpertainsonlytothetestprocedureportion,Section9,ofthisspecification:Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Y55
【国际标准分类号】:97_220_10
【页数】:5P.;A4
【正文语种】: