ANSI/ASTM F1890-2005 测量垒球球棒性能因数的试验方法
时间:2024-05-13 19:47:07 来源: 标准资料网 作者：标准资料网 阅读：8098
【英文标准名称】:TestMethodforMeasuringSoftballBatPerformanceFactor
【原文标准名称】:测量垒球球棒性能因数的试验方法
【标准号】:ANSI/ASTMF1890-2005
【标准状态】:作废
【国别】:美国
【发布日期】:2005
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:体育器材;试验;球棒;系数;碰撞;材料试验;性能
【英文主题词】:Bat;Coefficient;Collisions;Materialstesting;Performance;Sportsequipment;Testing
【摘要】:Thistestmethodcoversamethodfordeterminingbatperformancebymeasuringthebat-ballcoefficientofrestitution(BBCOR),derivingthebatperformancefactor(BPF)andcalculatingabattedballspeed(BBS).Itisapplicabletosoftballbatsofanyconstructionormaterial.Themethodprovidesaquantitativemeasureofbatdynamicperformancethatmaybeusedforcomparisonpurposes.TheBBCOR,BPF,andBBSareeachcalculatedfrommeasurementstakeninthelaboratoryontestequipmentmeetingtherequirementsdefinedinthisspecification.Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatoryrequirementspriortouse.
【中国标准分类号】:Y55
【国际标准分类号】:97_220_40
【页数】:
【正文语种】:英语
【英文标准名称】:StandardTestMethodforDensityofSoilinPlacebytheDrive-CylinderMethod
【原文标准名称】:传动缸法测定现场土壤密度的标准试验方法
【标准号】:ASTMD2937-2010
【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】:D18.08
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:compactioncontrol;densitytesting;drivecylinder;drivecylindertest;fielddensity;in-placedensity;plugsampler;qualitycontrol;subsurfacesampler;surfacesampler;unitweight;Backfill--testing;Subsurfaceinvestigation--soil/rock;S
【摘要】:Thistestmethodcanbeusedtodeterminethein-placedensityofsoilswhichdonotcontainsignificantamountsofparticlescoarserthan4.75mm(3/16in.),andwhichcanbereadilyretainedinthedrivecylinder.Thistestmethodmayalsobeusedtodeterminethein-placedensityofcompactedsoilsusedinconstructionofstructuralfill,highwayembankments,orearthdams.Whenthein-placedensityistobeusedasabasisforacceptance,thedrivecylindervolumesmustbeaslargeaspracticalandnotlessthan850cm3(0.030ft3).Thistestmethodisnotrecommendedforuseinorganicorfriablesoils.Thistestmethodmaynotbeapplicableforsoft,highlyplastic,noncohesive,saturatedorothersoilswhichareeasilydeformed,compressduringsampling,orwhichmaynotberetainedinthedrivecylinder.Theuseofthistestmethodinsoilscontainingparticlescoarserthan4.75mm(3/16in.)mayresultindamagetothedrivecylinderequipment.Soilscontainingparticlescoarserthan4.75mm(3/16in.)maynotyieldvalidresultsifvoidsarecreatedalongthewallofcylinderduringdriving,orifparticlesaredislodgedfromthesampleendsduringtrimming.Thegeneralprinciplesofthistestmethodhavebeensuccessfullyusedtoobtainsamplesofsomefieldcompactedfine-grainedsoilshavingamaximumparticlesizeof4.75mm(3/16in.)forpurposesotherthandensitydeterminations,suchasthetestingforengineeringproperties.Note18212;Notwithstandingthestatementsonprecisionandbiascontainedinthisstandard:Theprecisionofthistestmethodisdependentonthecompetenceofthepersonnelperformingitandthesuitabilityoftheequipmentandfacilitiesused.AgencieswhichmeetthecriteriaofPracticeD3740aregenerallyconsideredcapableofcompetentandobjectivetesting.UsersofthismethodarecautionedthatcompliancewithPracticeD3740doesnotinitselfassurereliabletesting.Reliabletestingdependsonmanyfactors;PracticeD3740providesameansofevaluatingsomeofthosefactors.1.1Thistestmethodcoversthedeterminationofin-placedensityofsoilbythedrive-cylindermethod.Thetestmethodinvolvesobtainingarelativelyintactsoilsamplebydrivingathin-walledcylinderandthesubsequentactivitiesforthedeterminationofin-placedensity.Whensamplingorin-placedensityisrequiredatdepth,TestMethodD1587shouldbeused.1.2Thistestmethodisnotappropriateforsamplingorganicsoilswhichcancompressuponsampling,veryhardnaturalsoilsandheavilycompactedsoilswhichcannotbeeasilypenetratedbythedrivesampler,soilsoflowplasticitywhichwillnotbereadilyretainedinthecylinder,orsoilswhichcontainappreciableamountsofgravel(particlescoarserthan4.75mm(3/16in.)).Thepresenceofparticlescoarserthan4.75mm(3/16in.)mayintroducesignificanterrorsindensitymeasurementsbycausingvoidsalongthewallofthecylinderduringdriving,andwhencoarsematerialshavetobedislodgedbythetrimmingofthesampleobtainedbythecylinder.1.3Thistestmethodislimitedtotheproceduresnecessaryforobtainingspecimenssuitablefordeterminingthein-placedensi......
【中国标准分类号】:P13
【国际标准分类号】:93_020
【页数】:8P.;A4
【正文语种】:英语
【英文标准名称】:Footwearforfirefighters;GermanversionEN15090:2012
【原文标准名称】:防火鞋
【标准号】:EN15090-2012
【标准状态】:现行
【国别】:
【发布日期】:2012-04-01
【实施或试行日期】:2012-04-01
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Accidentprevention;Bendingstress;Boots;Bottom;Burningbehaviours;Chainsaws;Chains;Clampingdevices;Classification;Clothing;Commercial;Conditioning;Contact;Cutting;Dangerousstuffs;Dangerouswork;Density;Design;Electricalproperties;Environmentalcondition;Ergonomics;Firebrigade;Firebrigadeequipment;Firehazards;Fireproofness;Firerisks;Firesafety;Firefighting;Flameproofness;Footprotectiveequipment;Footwear;Heat;Heatprotectiveclothing;Hydrolyticresistance;Impact;Information;Informationsuppliedbythemanufacturer;Insoles;Inspectors;Layers;Marking;Materials;Metals;Methods;Microorganisms;Minimumrequirements;Occupationalsafety;Operationallocation;Outsoles;Patterns;Pedestrian-controlledsystems;Pictographs;Properties;Protection;Protectiveclothing;Protectiveequipment;Protectivefootwear;Radiantheat;Safetyagainststepping;Safetyrequirements;Sections;Shape;Shoes;Slidefasteners;Slide-blocking;Soles;Specification;Specification(approval);Strengthofmaterials;Symbols;Testing;Thermalinsulation;Thermalproperties;Tightness;Trough;Use;Userinformation;Velocity;Waterproof;Waterproofness;Workingshoe;Workplacesafety
【摘要】:
【中国标准分类号】:C73
【国际标准分类号】:13_340_50
【页数】:36P;A4
【正文语种】:英语