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ASTM F1890-2005 测量垒球球棒性能因数的标准试验方法

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【英文标准名称】:StandardTestMethodforMeasuringSoftballBatPerformanceFactor
【原文标准名称】:测量垒球球棒性能因数的标准试验方法
【标准号】:ASTMF1890-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:F08.26
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:球棒;系数;碰撞;材料试验;性能;体育器材;试验
【英文主题词】:batperformance;BBCOR;BBS;BPF;COR;softballbats;softballs
【摘要】:Thistestmethodoffersalaboratorymeanstocomparetheperformanceofasoftballbat.UseofthistestmethodcanprovidesportsgoverningbodiesameanstocomparecalculatedBBSandotherphysicalpropertiesofbats.1.1Thistestmethodcoversamethodfordeterminingbatperformancebymeasuringthebat-ballcoefficientofrestitution(BBCOR),derivingthebatperformancefactor(BPF)andcalculatingabattedballspeed(BBS).Itisapplicabletosoftballbatsofanyconstructionormaterial.Themethodprovidesaquantitativemeasureofbatdynamicperformancethatmaybeusedforcomparisonpurposes.1.2TheBBCOR,BPF,andBBSareeachcalculatedfrommeasurementstakeninthelaboratoryontestequipmentmeetingtherequirementsdefinedinthisspecification.1.3Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatoryrequirementspriortouse.
【中国标准分类号】:Y56
【国际标准分类号】:97_220_40(OUTDOORANDWATERSPORTSEQUIPMENT)
【页数】:4P.;A4
【正文语种】:


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【英文标准名称】:SpecificationforPoly(VinylChloride)(PVC)Large-DiameterPlasticGravitySewerPipeandFittings
【原文标准名称】:大口径聚氯乙烯(PVC)塑料污水管及配件的标准规范
【标准号】:ANSI/ASTMF679-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008-03-25
【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】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:配件;塑料;聚氯乙烯;污水管
【英文主题词】:Fittings;Plastics;Polyvinylchloride;Sewerpipes
【摘要】:Thisspecificationcoversrequirementsandtestmethodsformaterials,dimensions,workmanship,flatteningresistance,impactresistance,pipestiffness,extrusionquality,joiningsystem,andaformofmarkingforlargediameters,18to48in.poly(vinylchloride)(PVC)sewerpipeandfittingswithintegralbellelastomericsealjointsandsmoothinnerwalls.Therequirementsofthisspecificationareintendedtoprovidepipeandfittingssuitablefornonpressuredrainageofsewageandsurfacewater.PipeandfittingsproducedtothisspecificationshouldbeinstalledinaccordancewithPracticeD2321.Note1-Industrialwastedisposallinesshouldbeinstalledonlywiththespecificapprovalofthegoverningcodeauthoritysincetemperaturesinexcessof140?F(60?C)andchemicalsnotcommonlyfoundindrainsandsewersmaybeencountered.Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesinparenthesesareprovidedforinformationpurposesonly.Thefollowingprecautionarycaveatpertainsonlytothetestmethodportion,Section7,ofthisspecification:Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityorregulatorylimitationspriortouse.
【中国标准分类号】:Q81
【国际标准分类号】:23_040_20
【页数】:
【正文语种】:英语


基本信息
标准名称:负导线接头
发布日期:1976-10-27
实施日期:1976-10-01
首发日期:1900-01-01
作废日期:1900-01-01
出版日期:1900-01-01
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