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DB63/T 781-2009 牦牛犊肉

作者:标准资料网 时间:2024-05-14 09:44:09  浏览:9545   来源:标准资料网
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基本信息
标准名称:牦牛犊肉
发布部门:青海省质量技术监督局
发布日期:2009-03-30
实施日期:2009-04-30
首发日期:
作废日期:
出版社:中国标准出版社
出版日期:2009-04-30
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所属分类: 信息技术 办公机械设备 信息技术应用 信息技术应用综合
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Product Code:SAE AMS5617
Title:Steel, Corrosion-Resistant, Bars, Wire, and Forgings, 12Cr - 8.5Ni - 1.2Ti - 2.0Cu, Vacuum Induction Plus Vacuum Consumable Electrode Melted Solution Heat Treated, Precipitation Hardenable
Issuing Committee:Ams F Corrosion Heat Resistant Alloys Committee
Scope:This specification covers two grades of a premium aircraft-quality, corrosion-resistant steel in the form of bars, wire, forgings, and forging stock.【英文标准名称】:StandardTestMethodforShockAttenuatingPropertiesofMaterialsSystemsforAthleticFootwear
【原文标准名称】:运动鞋材料系统减震性能的标准试验方法
【标准号】:ASTMF1614-1999(2006)
【标准状态】:现行
【国别】:
【发布日期】:1999
【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】:F08.54
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:衰减因子;试验方法;测试方法;运动鞋
【英文主题词】:
【摘要】:Thistestmethodisusedbyathleticfootwearmanufacturersbothasatoolfordevelopmentofmidsolematerialsystemsandasatestofthegeneralcharacteristicsoftheathleticfootwearproduct(see1.4-1.6.2andNotes1-6).Carefuladherencetotherequirementsandrecommendationsofthistestmethodshallprovideresultswhichcanbecomparedbetweendifferentlaboratorysources.Dynamicdataobtainedbytheseproceduresareindicativeoftheshockattenuatingproperties(see1.5)ofthematerialsystemsunderthespecificconditionsselected.Thistestmethodisdesignedtoprovideforceversusdisplacementresponseofmaterialssystemsforathleticfootwearunderessentiallyuniaxialcompressionconditionsatimpactrates,whicharesimilartothatforheelstrikeinnormalrunningmovements.2,3Thatis,peakforcesofupto2kN(450lb)intimesof10to20ms.Thepeakormaximumvaluesofforce,pressure,displacement,andstrainaredependentonthemaximumenergyappliedtothespecimen.Thesevaluesarenormalizedtoprovidecomparativeresultsforareferencemaximumenergyappliedtothespecimenof5J.Shockattenuatingcharacteristicsarestronglydependentonspecimenthicknessandpriorhistoryofforceapplication.Therefore,resultsshouldbecomparedonlyforspecimensofessentiallythesamethicknessandpriorimpactconditioning(seeNotes3-6).Therearenocurrentlyacceptabletechniquesfornormalizingresultsforspecimenthicknessvariations.Shockattenuatingvalues(see1.5)determinedbythistestmethod,formaterialssystemsofathleticfootwear,maynotcorrelatewiththesimilarvaluesexperiencedbyarunnersheelorfoot.1.1Thistestmethodcoversthemeasurementofcertainshockattenuatingcharacteristics,rapidrateforce-displacementrelationships,ofmaterialssystemsemployedinthemidsoleofathleticfootwearintendedforuseinnormalrunningmovements.Thistestmethodcoversthreedifferentproceduresforperformanceoftherapidrateforceapplication:ProcedureAforfallingweightimpactmachines,ProcedureBforcompressionforcecontrolledmachines,andProcedureCforcompressiondisplacementcontrolledmachines.1.2Thematerialsystemresponseforrapidrateforceapplicationmaybedifferentforeachofthethreeproceduresofthistestmethod.1.3Thistestmethodisempiricallybasedontheuseofan8.5-kgmassdroppedfrom50mm(1.97in.)togeneratepeakcompressiveforceswhicharecomparabletothatexperiencedbyamidsoleinheelstriketestsfornormalrunningmovement.,Thisrequiresthespecimentoberigidlysupportedandtheenergytobedeliveredthrougha45-mm(1.8-in.)diameterflattup.1.4Thistestmethodimposesanimpulsetogeneratearapidratecompressiveforce-displacementhysteresiscycleandevaluatesshockattenuatingcharacteristicsofthespecimen.Themaximumenergyappliedtothespecimenoccursatpeakdisplacementandmustbewithin10%ofareferencevaluethatisusedtonormalizethedataforcomparativepurposes.
【中国标准分类号】:Y56
【国际标准分类号】:61_060
【页数】:11P.;A4
【正文语种】:



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