【英文标准名称】:StandardPracticeforEvaluatingTireTractionPerformanceDataUnderVaryingTestConditions
【原文标准名称】:试验条件改变的情况下轮胎牵引性能数据评定的标准操作规程
【标准号】:ASTMF1650-1998(2005)
【标准状态】:现行
【国别】:
【发布日期】:1998
【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】:F09.20
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:轮胎;试验条件
【英文主题词】:datacorrection;testvariation;testingtrends;tractiontesting
【摘要】:1.1Thispracticecoverstherequiredproceduresforexaminingsequentialcontroltiredataforanyvariationduetochangingtestconditions.Suchvariationsmayinfluenceabsoluteandalsocomparativeperformanceofcandidatetires,astheyaretestedoveranyshortorextendedtimeperiod.Thevariationsaddressedinthispracticearesystematicorbiasvariationsandnotrandomvariations.Seeforadditionaldetails.1.1.1Twotypesofvariationmayoccur:timeortestsequence"trendvariations,"eitherlinearorcurvilinear,andthelesscommontransientorabruptshiftvariations.Ifanyobservedvariationsaredeclaredtobestatisticallysignificant,thecalculationproceduresaregiventocorrectfortheinfluenceofthesevariations.ThisapproachisaddressedinMethodA.1.2Insometestingprograms,apolicyisadoptedtocorrectallcandidatetractiontestdatavalueswithouttheapplicationofastatisticalroutinetodetermineifasignificanttrendorshiftisobserved.ThisoptionispartofthispracticeandisaddressedinMethodB.1.3Theissueofrejectingoutlierdatapointsortestvaluesthatmightoccuramongasetofotherwiseacceptabledatavaluesobtainedunderidenticaltestconditionsinashorttimeperiodisnotpartofthispractice.Specifictestmethodorotheroutlierrejectionstandardsthataddressthisissuemaybeusedontheindividualdatasetspriortoapplyingthispracticeanditsprocedures.1.4Althoughthispracticeappliestovarioustypesoftiretractiontesting(forexample,dry,wet,snow,ice),theproceduresasgiveninthispracticemaybeusedforanyrepetitivetiretestinginanenvironmentwheretestconditionsaresubjecttochange.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G41
【国际标准分类号】:
【页数】:13P.;A4
【正文语种】: