ASTM D4290-2007 在加速条件下测定汽车轮轴轴承润滑脂的渗漏倾向用标准试验方法

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【英文标准名称】:StandardTestMethodforDeterminingtheLeakageTendenciesofAutomotiveWheelBearingGreaseUnderAcceleratedConditions
【原文标准名称】:在加速条件下测定汽车轮轴轴承润滑脂的渗漏倾向用标准试验方法
【标准号】:ASTMD4290-2007
【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】:D02.G0.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:轴承;润滑脂;泄漏;润滑剂;石油产品
【英文主题词】:leakageautomotivewheelbearing;lubricatinggrease;wheelbearinggrease
【摘要】:Thistestmethoddifferentiatesamongwheelbearinggreaseshavingdistinctlydifferenthigh-temperatureleakagecharacteristics.Itisnottheequivalentoflongtimeservicetests.Thistestmethodhasproventobehelpfulinscreeninggreaseswithrespecttoleakagetendenciesforautomotivewheelbearingapplications.Note18212;Itispossibleforskilledoperatorstoobservechangesingreasecharacteristicsthatcanoccurduringthetest,suchasgreasecondition.Leakageisreportedasaquantitativevalue,whereastheevaluationofgreaseconditionissubjecttodifferencesinpersonaljudgmentamongoperatorsandcannotbeusedeffectivelyforquantitativemeasurements.1.1Thistestmethodcoversalaboratoryprocedureforevaluatingleakagetendenciesofwheelbearinggreaseswhentestedunderprescribedconditions.1.2si-value;Theexceptionisapparatusdimensions,ininches,whicharetoberegardedasthestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecificwarningstatements,seeSection8.
【中国标准分类号】:E36
【国际标准分类号】:75_100
【页数】:6P.;A4
【正文语种】: